Tymon Barwicz  Tymon Barwicz photo       

contact information

Research Scientist in Nanophotonic Devices
Thomas J. Watson Research Center, Yorktown Heights, NY USA
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Professional Associations

Professional Associations:  IEEE Member  |  Optical Society of America


 

Journal Publications

J28. Tymon Barwicz, Yoichi Taira, Ted W. Lichoulas, Nicolas Boyer, Yves Martin, Hidetoshi Numata, Jae-Woong Nah, Shotaro Takenobu, Alexander Janta-Polczynski, Eddie L. Kimbrell, Robert Leidy, Marwan H. Khater, Swetha Kamlapurkar, Sebastian Engelmann, Yurii A. Vlasov, and Paul Fortier, “A Novel Approach to Photonic Packaging Leveraging Existing High-Throughput Microelectronic Facilities” IEEE Journal of Selected Topics in Quantum Electronics, 22 (6), 8200712, Nov.-Dec. 2016. DOI:10.1109/JSTQE.2016.2593637

J27. Douglas M. Gill, Jonathan E. Proesel, Chi Xiong, Jason S. Orcutt, Jessie C. Rosenberg, Marwan H. Khater, Tymon Barwicz, Solomon Assefa, Steven M. Shank, Carol Reinholm, John Ellis-Monaghan, Edward Kiewra, Swetha Kamlapurkar, Chris M. Breslin, William M. J. Green, Wilfried Haensch, Yurii A. Vlasov, “Demonstration of a High Extinction Ratio Monolithic CMOS Integrated Nanophotonic Transmitter and 16 Gb/s Optical Link” IEEE Journal of Selected Topics in Quantum Electronics, 21, 1-11, 2015. DOI:10.1109/JSTQE.2014.2381468

J26.  D. M. Gill, W. M. J. Green, C. Xiong, A. Rylyakov, C. Schow, J. Preosel, J. C. Rosenberg, T. Barwicz, M. Khater, S. Assefa, S. M. Shank, C. Reinholm, E. Kiewra, S. Kamlapurkar, Y. A. Vlasov, “Distributed electrode Mach-Zehnder modulator with double-pass phase shifters and integrated inductors” Optics Express, 23 (13), 2015. DOI:10.1364/OE.23.016857

J25. Wesley D. Sacher, William M. J. Green, Douglas M. Gill, Solomon Assefa, Tymon Barwicz, Marwan Khater, Edward Kiewra, Carol Reinholm, Steven M. Shank, Yurii A. Vlasov, Joyce K. S. Poon,"Binary phase-shift keying by coupling modulation of microrings" Optics Express, 22 (17), 2014. DI:10.1364/OE.22.020252

J24. Wesley D Sacher, Ying Huang, Liang Ding, Tymon Barwicz, Jared C Mikkelsen, Benjamin J F Taylor, Guo-Qiang Lo, Joyce K S Poon, "Polarization rotator-splitters and controllers in a Si<sub>3</sub>N<sub>4</sub>-on-SOI integrated photonics platform." Optics Express, 22 (9), 11167-11174, 2014. DI:10.1364/OE.22.011167

J23. T. Barwicz, Y. Taira "Low-Cost Interfacing of Fibers to Nanophotonic Waveguides: Design for Fabrication and Assembly Tolerances" IEEE Photonics Journal, 6 (4), 1-18, 2014. DI:10.1109/JPHOT.2014.2331251

J22. Wesley D Sacher, Tymon Barwicz, Benjamin J F Taylor, Joyce K S Poon "Polarization rotator-splitters in standard active silicon photonics platforms." Optics Express, 22 (4), 3777-86, 2014. DI:10.1364/OE.22.003777

J21. Benjamin G. Lee, Alexander V. Rylyakov, William M. J. Green, Solomon Assefa, Christian W. Baks, Renato Rimolo-Donadio, Daniel M. Kuchta, Marwan H. Khater, Tymon Barwicz, Carol Reinholm, Edward Kiewra, Steven M. Shank, Clint L. Schow, Yurii A. Vlasov "Monolithic Silicon Integration of Scaled Photonic Switch Fabrics, CMOS Logic, and Device Driver Circuits" Journal of Lightwave Technology, 32 (4), 2014. DI:10.1109/JLT.2013.2280400

J20. W. D. Sacher, W. M. J. Green, S. Assefa, T. Barwicz, H. Pan, S. M. Shank, Y. A. Vlasov, J. K. S. Poon, “Coupling modulation of microrings at rates beyond the linewidth limit” Optics Express, 21 (8), 9722-33, 2013. DOI:10.1364/OE.21.009722

J19. Mackenzie A Van Camp, Solomon Assefa, Douglas M Gill, Tymon Barwicz, Steven M Shank, Philip M Rice, Teya Topuria, William M J Green, “Demonstration of electrooptic modulation at 2165nm using a silicon Mach-Zehnder interferometer” Optics Express, 20 (27), 28009-16, 2012. DOI:10.1364/OE.20.028009

J18. J. C. Rosenberg, W. M. J. Green, S. Assefa, D. M. Gill, T. Barwicz, M. Yang, S. M. Shank, Y. A. Vlasov, “A 25 Gbps silicon microring modulator based on an interleaved junction” Optics Expres, 20 (24), 26411-23, 2012. DOI:10.1364/OE.20.026411

J17. T. Barwicz, G. M. Cohen, K. B. Reuter, S. Bangsaruntip, and J. W. Sleight, "Anisotropic capillary instability of silicon nanowires under hydrogen anneal," Appl. Phys. Lett. 100, 093109, 2012. DI:10.1063/1.3690869

J16. J. Sleight, S. Bangsaruntip, G. Cohen, A. Majumdar, Y. Zhang, S. Engelmann, N. Fuller, L. Gignac, S. Mittal, J. Newbury, T. Barwicz, M. Frank,  M. Guillorn, “High performance and highly uniform metal hi-k gate-all-around silicon nanowire mosfets” ECS Transactions, v 28, n 1, p 179-189, 2010.

J15. T. Barwicz, L. Klein, S. J. Koester, and H. Hamann, “Silicon nanowire piezoresistance: Impact of surface crystallographic orientation,” Appl. Phys. Lett. 97, 023110, 2010. DI:10.1063/1.3463456

J14. S. Lu, Z. Lingley, T. Asano, D. Harris, T. Barwicz, S. Guha, A. Madhukar, “Photocurrent induced by non-radiative energy transfer from nanocrystal quantum dots to adjacent silicon nanowire conducting channels: Towards a new solar cell architecture" Nano Letters, v 9, n 12, p 4548-4552, December 9, 2009. DI:10.1021/nl903104k

J13. T. Barwicz, C.W. Holzwarth, P.T. Rakich, M.A. Popovic, E.P. Ippen, and H.I. Smith, “Optical loss in silicon microphotonic waveguides induced by metallic contamination,” Appl. Phys. Lett. 92, 131108, 2008. DI:10.1063/1.2903714

J12. C. W. Holzwarth, T. Barwicz, and Henry I. Smith, “Optimization of hydrogen silsesquioxane for photonic applications,” J. Vac. Sci. Technol. B 25,2658-2661, 2007. DI:10.1116/1.2787832

J11. T. Barwicz, M.R. Watts, M. A. Popovic, P.T. Rakich, L. Socci, F.X. Kaertner, E.P. Ippen and H.I. Smith, "Polarization-transparent microphotonics in the strong confinement limit," Nature Photonics 1, 57-60, 2007. DI:10.1038/nphoton.2006.41

J10. Y. Ma, Y.-C. Cheng, F. Cerrina, T. Barwicz and H. I. Smith, “Local line edge roughness in microphotonic devices: An electron-beam lithography study,” J. Vac. Sci. Technol. B 25,235–241, 2007. DI:10.1116/1.2426978

J9.   C. W. Holzwarth, T. Barwicz, M. A. Popovic, P. T. Rakich, E. P. Ippen,
F. X. Kaertner, and Henry I. Smith, “Accurate resonant frequency spacing of microring filters without postfabrication trimming,” J. Vac. Sci. Technol. B 24,
3244-3247, 2006. DI:10.1116/1.2363402

J8.   T. Barwicz, H. Byun, F. Gan, C. W. Holzwarth, M. A. Popovic, P. T. Rakich, M. R. Watts, E. P. Ippen, F. X. Kärtner, H. I. Smith, J. S. Orcutt, R. J. Ram, V. Stojanovic, O. O. Olubuyide, J. L. Hoyt, S. Spector, M. Geis, M. Grein, T. Lyszczarz, and J. U. Yoon, "Silicon photonics for compact, energy-efficient interconnects (Invited)," Journal of Optical Networking, 6, 63-73, 2006. DI:10.1364/JON.6.000063

J7.   T. Barwicz, M. A. Popovic, M.R. Watts, P.T. Rakich, E.P. Ippen and H.I. Smith, "Fabrication of add-drop filters based on frequency-matched microring-resonators," J. Lightwave Technol. 24, 2207-2218 (2006). DI:10.1109/JLT.2006.872298

J6.   M. A. Popovic, T. Barwicz, M. R. Watts, P. T. Rakich, L. Socci, E. P. Ippen, F. X. Kaertner, and H. I. Smith, “Multistage high-order microring-resonator add-drop Filters” Optics Letters 31, 2571-2573 (2006). DI:10.1364/OL.31.002571

J5.   P. T. Rakich, M. A. Popovic, M.R. Watts, T. Barwicz, H.I. Smith and E.P. Ippen, “Ultra-wide tuning of photonic microcavities via evanescent field perturbation,” Optics Letters 31, 1241-1243 (2006). DI:10.1364/OL.31.001241

J4.   D. Chao, A. Patel, T. Barwicz, H.I. Smith, and R. Menon, “Immersion Zone-Plate-Array Lithography,” J. Vac. Sci. Technol. B 23, 2657-2661 (2005). DI:10.1116/1.2127942

J3.   T. Barwicz and H.A.Haus, "Three-dimensional analysis of scattering losses due to sidewall roughness in microphotonic waveguides," Journal of Lightwave Technology 23, 2719-2732 (2005). DI:10.1109/JLT.2005.850816

J2.   T. Barwicz, M. A. Popovic, P.T. Rakich, M.R. Watts, H.A. Haus, E.P. Ippen, and H.I. Smith, "Microring-resonator-based add-drop filters in SiN: fabrication and analysis," Optics Express 21, 1742-1750 (2004). DI:10.1364/OPEX.12.001437

J1.   T. Barwicz and H.I.Smith, "Evolution of line-edge-roughness during fabrication of high-index-contrast microphotonic devices," J. Vac. Sci. Technol. B 21, 2892-2896 (2003). DI:10.1116/1.1625965

Contributed and Invited Conference Presentations

C88.Tymon Barwicz, Alexander Janta-Polczynski, Shotaro Takenobu, Jean-Francois Morissette, Bo Peng, Yoichi Taira, Hidetoshi Numata, Swetha Kamlapurkar, Sebastian Engelmann, Paul Fortier, and Nicolas Boyer, “A compliant polymer interface with 1.4dB loss between standard fibers and nanophotonic waveguides,” in 2016 Frontiers in Optics, OSA Technical Digest (online) (Optical Society of America, 2016), paper FTu1D.2.

C87. Wesley D. Sacher, Bo Peng, Jessie C. Rosenberg, Marwan Khater, Yves Martin, Jason S. Orcutt, Yurii A. Vlasov, William M. Green, and Tymon Barwicz, “An O-band Polarization Splitter-Rotator in a CMOS-Integrated Silicon Photonics Platform,” in 2016 Frontiers in Optics, OSA Technical Digest (online) (Optical Society of America, 2016), paper FTu2D.2.

C86. Tymon Barwicz, Yves Martin, Jae-Woong Nah, Swetha Kamlapurkar, Robert L. Bruce, Sebastian Engelmann, and Yurii A. Vlasov, “Demonstration of Self-Aligned Flip-Chip Photonic Assembly with 1.1dB Loss and >120nm Bandwidth,” in 2016 Frontiers in Optics, OSA Technical Digest (online) (Optical Society of America, 2016), paper FF5F.3.

C85. Tymon Barwicz, “Metamaterial interfaces for coupling standard fibers to nanophotonic waveguides (Invited),” in OSA Subwavelength Photonics Incubator, Washington DC, 21-23 September 2016.

C84. Bo Peng, Jessie Rosenberg, Wesley D. Sacher, Marwan Khater, William M. J. Green, and Tymon Barwicz, “Distributed backscattering due to stochastic defects in production O-band Si photonic waveguides,” in 2016 Conference on Lasers and Electro-Optics (CLEO), OSA Technical Digest (online) (Optical Society of America, 2016), paper SM2G.3. DOI: 10.1364/CLEO_SI.2016.SM2G.3

C83. Nicolas Boyer; Alexander Janta-Polczynski; Jean-Francois Morissette; Swetha Kamlapurkar; Sebastian Engelmann; Yoichi Taira; Shotaro Takenobu; Hidetoshi Numata; Paul Fortier; Tymon Barwicz, “Sub-Micron Bondline-Shape Control in Automated Assembly of Photonic Devices,” in Proc. of IEEE Electronic Components and Technology Conference (ECTC), (IEEE, New York, 2016), pp. 2257 - 2263. DOI: 10.1109/ECTC.2016.119

C82. Yves Martin, Jae-Woong Nah, Swetha Kamlapurkar, Sebastian Engelmann, Tymon Barwicz, “Toward high-yield 3D self-alignment of flip-chip assemblies via solder surface tension,” in Proc. of IEEE Electronic Components and Technology Conference (ECTC), (IEEE, New York, 2016), pp. 588-594. DOI: 10.1109/ECTC.2016.239

C81.J. S. Orcutt, D. M. Gill, J. Proesel, J. Ellis-Monaghan, F. Horst, T. Barwicz, C. Xiong, F. G. Anderson, Y. Martin, C. W. Baks, M. Khater, J. C. Rosenberg, W. D. Sacher, J. Hofrichter, E. Kiewra, A. D. Stricker, F. Libsch, B. Offrein, M. Meghelli, N. B. Feilchenfeld, W. Haensch, W. M. J. Green, “Monolithic Silicon Photonics at 25 Gb/s (Invited),” in Optical Fiber Communication Conference, OSA Technical Digest (online) (Optical Society of America, 2016), paper Th4H.1. DOI: 10.1364/OFC.2016.Th4H.1

C80. Tymon Barwicz, Nicolas Boyer, Alexander Janta-Polczynski, Jean-Francois Morissette, Yan Thibodeau, Luc Patry, Ted W. Lichoulas, Eddie L. Kimbrell, Stephan Martel, Swetha Kamlapurkar,Sebastian Engelmann, Robert L. Bruce, Yurii A. Vlasov and Paul Fortier, “A Metamaterial Converter Centered at 1490nm for Interfacing Standard Fibers to Nanophotonic Waveguides,” in Optical Fiber Communication Conference, OSA Technical Digest (online) (Optical Society of America, 2016), paper M2I.3. DOI: 10.1364/OFC.2016.M2I.3.

C79. Tymon Barwicz, “Photonic Packaging in Automated, High-Throughput Microelectronic Packaging Facilities for Cost-Efficiency and Scalability (Invited),” in OIDA/CIAN Workshop on Integrated Photonics High Volume Packaging, Anaheim CA, March 20, 2016.

C78. N. B. Feilchenfeld; F. G. Anderson; T. Barwicz; S. Chilstedt; Y. Ding; J. Ellis-Monaghan; D. M. Gill; C. Hedges; J. Hofrichter; F. Horst; M. Khater; E. Kiewra; R. Leidy; Y. Martin; K. McLean; M. Nicewicz; J. S. Orcutt; B. Porth; J. Proesel; C. Reinholm; J. C. Rosenberg; W. D. Sacher; A. D. Stricker; C. Whiting; C. Xiong; A. Agrawal; F. Baker; C. W. Baks; B. Cucci; D. Dang; T. Doan; F. Doany; S. Engelmann; M. Gordon; E. Joseph; J. Maling; S. Shank; X. Tian; C. Willets; J. Ferrario; M. Meghelli; F. Libsch; B. Offrein; W. M. J. Green; W. Haensch, “An Integrated Silicon Photonics Technology for O-band Datacom,” in Proc. of IEEE International Electron Devices Meeting (IEDM), (IEEE, New York, 2015), pp. 25.7.1 - 25.7.4. DOI: 10.1109/IEDM.2015.7409768

C77.Hidetoshi Numata, Yoichi Taira, Tymon Barwicz, “Low loss Polymer Waveguide Components for Silicon Photonic Packaging,” 2015 IEEE CPMT Symposium Japan (ICSJ), Kyoto, Japan, 9-11 Nov, 2015. DOI: 10.1109/ICSJ.2015.7357377

C76. Hidetoshi Numata, Yoichi Taira, Tymon Barwicz, "Single-mode Polymer Waveguide Connector for Low Power Optical Interconnect," The Japan Society of Applied Physics 2015 Autumn Meeting, Nagoya, Japan, Sep. 13-16, 2015.

C75. Yoichi Taira, Tymon Barwicz, “Silicon wire to polymer waveguide connection technology,” IEICE Society Conference, Sendai, Japan, Sept 9-11, 2015, paper CI-4-3.

C74. Shotaro Takenobu, Toshihisa Okada, Seiki Ohara, Tymon Barwicz, Yoichi Taira, Takashi Sayama, and Nobuhiko Imajyo, “Flexible Polymer Optical Waveguide for Si Photonics Interface (Invited),” IEICE Society Conference, Sendai, Japan, Sept 9-11, 2015, paper C-3-26.

C73. Tymon Barwicz, Yoichi Taira, Ted W. Lichoulas, Nicolas Boyer, Hidetoshi Numata, Yves Martin, Jae-Woong Nah, Shotaro Takenobu, Alexander Janta-Polczynski, Eddie L. Kimbrell, Robert Leidy, Marwan Khater, Swetha Kamlapurkar, Sebastian Engelmann, Yurii A. Vlasov, Paul Fortier,"Enabling large-scale deployment of photonics through cost-efficient and scalable packaging (Plenary)", in Proceedings of 2015 IEEE 12th International Conference on Group IV Photonics (GFP), Vancouver, Canada, August 26-28, 2015, paper ThA1. (IEEE, New York, 2015), pp. 155 – 156, DOI: 10.1109/Group4.2015.7305910

C72. Alexander Janta-Polczynski, Nicolas Boyer, Yoichi Taira, Ted W. Lichoulas, Hidetoshi Numata, Shotaro Takenobu, Eddie L. Kimbrell, Robert Leidy, Marwan Khater, Swetha Kamlapurkar, Sebastian Engelmann, Yurii A. Vlasov, Paul Fortier, Tymon Barwicz,”Optical Packaging of Silicon Photonic Devices using Existing Microelectronics Assembly Infrastructure (Invited),” IEEE Photonics North, Ottawa, Canada, June 9 - 11, 2015.

C71. P. Fortier, N. Boyer, A.Janta-Polczynski,  Y. Taira,  H. Numata, T. Lichoulas, E. Kimbrell, S. Takenobu, Y. Thibodeau, S. Kamlapurkar, S. Engelmann, T. Barwicz, “Packaging Solutions for Optical Interconnects (Invited),” IEEE Optical Interconnect Conference, San Diego, CA, April 20-22, 2015, paper WB1.

C70. Tymon Barwicz, Nicolas Boyer, Stephane Harel, Ted W. Lichoulas, Eddie L. Kimbrell, Alexander Janta-Polczynski, Swetha Kamlapurkar, Sebastian Engelmann, Yurii A. Vlasov and Paul Fortier, "Automated, self-aligned assembly of 12 fibers per nanophotonic chip with standard microelectronics assembly tooling (Best-of-conference paper award)," in Proceedings of the IEEE Electronic Components and Technology Conference (ECTC), (IEEE, 2015) pp.775-782, 26-29 May, 2015. DI:10.1109/ECTC.2015.7159680

C69. Y. Taira, H. Numata, S. Takenobu, T. Barwicz, "Improved connectorization of compliant polymer waveguide ribbon for silicon nanophotonics chip interfacing to optical fibers," in proceedings of IEEE Electronic Components and Technology Conference (ECTC), (IEEE, 2015) pp.1640-1645, 26-29 May, 2015. DI:10.1109/ECTC.2015.7159816

C68. J.-W. Nah; Y. Martin, S. Kamlapurkar, S. Engelmann, R.L. Bruce, T. Barwicz, "Flip chip assembly with sub-micron 3D re-alignment via solder surface tension," in Proceedings of IEEE Electronic Components and Technology Conference (ECTC), (IEEE, 2015) pp.35-40, 26-29 May 2015. DI:10.1109/ECTC.2015.7159568

C67. T. Barwicz, Y. Taira, T. W. Lichoulas, N. Boyer, H. Numata, Y. Martin, J. Nah, S. Takenobu, A. Janta-Polczynski, E. Kimbrell, R. Leidy, M. Khater, S. Kamlapurkar, S. Engelmann, Y. A. Vlasov, and P. Fortier, "Photonic Packaging in High-Throughput Microelectronic Assembly Lines for Cost-Efficiency and Scalability (Invited)," in Optical Fiber Communication Conference, OSA Technical Digest (online) (Optical Society of America, 2015), paper W3H.4.

C66. T. Barwicz, A. Janta-Polczynski, M. Khater, Y. Thibodeau, R. Leidy, J. Maling, S. Martel, S. Engelmann, J. S. Orcutt, P. Fortier, and W. M. Green, "An O-band Metamaterial Converter Interfacing Standard Optical Fibers to Silicon Nanophotonic Waveguides," in Optical Fiber Communication Conference, OSA Technical Digest (online) (Optical  Society of America, 2015), paper Th3F.3.

C65.T. Barwicz, Y. Taira, S. Takenobu, N. Boyer, A. Janta-Polczynski, Y. Thibodeau, S. Kamlapurkar, S. Engelmann, H. Numata, R. Bruce, S. Laflamme, P. Fortier, and Y. Vlasov, "Optical Demonstration of a Compliant Polymer Interface between Standard Fibers and Nanophotonic Waveguides," in Optical Fiber Communication Conference, OSA Technical Digest (online) (Optical Society of America, 2015), paper Th3F.5.

C64. Shotaro Takenobu, Toshihisa Okada, Seiki Ohara, Tymon Barwicz, Yoichi Taira, Takashi Sayama, and Nobuhiko Imajyo “Flexible Polymer Optical Waveguide for Si Photonics Interface," in Optical Fiber Communication Conference, OSA Technical Digest (online) (Optical Society of America, 2015), paper Th3F.4.

C63. Y. Taira, H. Numata, T. Barwicz “Precision assembly of polymer waveguide components for silicon photonic packaging” 2014 IEEE CPMT Symposium Japan (ICSJ), Kyoto, Japan, 4-6 Nov, 2014, pp 63-66.DOI: 10.1109/ICSJ.2014.7009610

C62. C. Xiong, D. M. Gill, J. C. Rosenberg, M. Khater, T. Barwicz, S. Assefa, S. M. Shank, C. Reinholm, E. Kiewra, J. Ellis-Monaghan, S. Kamlapurkar, A. D. Stricker, W. M. J. Green, Y. A. Vlasov, W. Haensch "A linear push-pull silicon optical modulator," in proceedings of Frontiers in Optics 2014, OSA Technical Digest (online) (Optical Society of America, 2014), paper FM3A.4. DI:10.1364/FIO.2014.FM3A.4

C61. Tymon Barwicz, Yoichi Taira, Hidetoshi Numata, Nicolas Boyer, Stephane Harel, Swetha Kamlapurkar, Shotaro Takenobu, Simon Laflamme, Sebastian Engelmann, Yurii Vlasov, and Paul Fortier “Assembly of mechanically compliant interfaces between optical fibers and nanophotonic chips,” in Proceedings of the IEEE Electronic Components and Technology Conference, Lake Buena Vista, FL USA, May 27-30, 2014, pp. 179-185. DOI: 10.1109/ECTC.2014.6897286

C60. Douglas M. Gill, Jonathan E. Proesel, Chi Xiong, Jessie Rosenberg, Marwan Khater, Tymon Barwicz, Solomon Assefa, Steven M. Shank, Carol Reinholm, Edward Kiewra, John J. Ellis-Monaghan, Swetha Kamlapurkar, William M. Green, Yurii Vlasov, "Monolithic Travelling-Wave Mach-Zehnder Transmitter with High-Swing Stacked CMOS Driver" 2014 Conference on Lasers and Electro-Optics (CLEO), 8-13 June 2014, San Jose, CA, USA

C59. Douglas M. Gill, William M. Green, Chi Xiong, Jonathan E. Proesel, Alexander V. Rylyakov, Clint L. Schow, Jessie Rosenberg, Tymon Barwicz, Marwan Khater, Solomon Assefa, Steven Shank, Carol Reinholm, Edward Kiewra, Swetha Kamlapurkar, Yurii Vlasov,"Distributed Electrode Mach-Zehnder Modulator with Double-Pass Phase Shifters and Integrated Inductors" 2014 Conference on Lasers and Electro-Optics (CLEO), 8-13 June 2014, San Jose, CA, USA.

C58.Joyce K. Poon, Wesley D. Sacher, Jared C. Mikkelsen, Solomon Assefa, Douglas M. Gill, Tymon Barwicz, Huapu Pan, Steven M. Shank, Yurii Vlasov, William M. Green,"Breaking the Conventional Limitations of Microrings," 2014 Conference on Lasers and Electro-Optics (CLEO), 8-13 June 2014, San Jose, CA, USA.

C57. Wesley D. Sacher, Ying Huang, Ding Liang, Tymon Barwicz, Jared C. Mikkelsen, Benjamin J. Taylor, Patrick Guo-Qiang Lo, Joyce Poon, "Si3N4-on-SOI Polarization Rotator-Splitter Based on TM0-TE1 Mode Conversion," 2014 Optical Fiber Communications Conference and Exhibition (OFC),9-13 March 2014, San Francisco, CA, USA. DI:10.1109/OFC.2014.6886638

C56. Doug Gill, William Green, Solomon Assefa, Jessie Rosenberg, Tymon Barwicz, Steven Shank, Yurii A. Vlasov,"CMOS Compatible Electro-optic Modulators and Linear Modulation Techniques" In proceedings of Frontiers in Optics 2013 OSA Technical Digest (online) (Optical Society of America, 2013), paper FTu4E.2. DOI:10.1364/FIO.2013.FTu4E.2

C55. Wesley Sacher, William M. Green, Solomon Assefa, Douglas M. Gill, Tymon Barwicz, Marwan H. Khater, Edward Kiewra, Carol Reinholm, Steven M. Shank, Yurii A. Vlasov, Joyce K. Poon "Coupling-modulated microrings for DPSK modulation," 2013 Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, Jun 09-14, 2013.

C54. Benjamin G. Lee, William M. Green, Alexander V. Rylyakov, Solomon Assefa, Marwan H. Khater, Tymon Barwicz, Carol Reinholm, Edward Kiewra, Steven M. Shank, Clint L. Schow, Yurii A. Vlasov, "Monolithically Integrated Photonic Switches Driven by Digital CMOS," 2013 Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, Jun 09-14, 2013.

C53. Wesley Sacher, Tymon Barwicz, and Joyce K. Poon, “Silicon-on-Insulator Polarization Splitter-Rotator Based on TM0-TE1 Mode Conversion in a Bi-level Taper”, in proceedings of CLEO 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper CTu3F.3. DOI:10.1364/CLEO_SI.2013.CTu3F.3

C52. William Green, Bart Kuyken, Xiaoping Liu, Mackenzie Van Camp, Solomon Assefa, Douglas Gill, Tymon Barwicz, Steven Shank, Yurii Vlasov, Richard Osgood, Roel Baets, and Gunther Roelkens, “Mid-Infrared Silicon Photonics”, in proceedings of Optical Fiber Communication Conference/National Fiber Optic Engineers Conference, 2013 OSA Technical Digest (online) (Optical Society of America, 2013), paper OTh4I.7. DOI:10.1364/OFC.2013.OTh4I.7

C51. Benjamin G. Lee, Alexander Rylyakov, William M. J. Green, Solomon Assefa, Christian W. Baks, Renato Rimolo-Donadio, Daniel Kuchta, Marwan Khater, Tymon Barwicz, Carol Reinholm, Edward Kiewra, Steven Shank, Clint Schow, and Yurii A. Vlasov, “Four- and Eight-Port Photonic Switches Monolithically Integrated with Digital CMOS Logic and Driver Circuits (postdeadline),” Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013 OSA Technical Digest (online) (Optical Society of America, 2013), paper PDP5C.3. DOI:10.1364/OFC.2013.PDP5C.3

C50. J.C. Rosenberg, W.M.J. Green, J. Proesel, S. Assefa, D.M. Gill, T. Barwicz, S.M. Shank, C. Reinholm, M. Khater, E. Kiewra, S. Kamlapurkar, Y.A. Vlasov, “A monolithic microring transmitter in 90 nm SOI CMOS technology,” 2013 IEEE Photonics Conference (IPC), 8-12 Sept. 2013, Bellevue, WA, USA. DOI: 10.1109/IPCon.2013.6656515

C49. J.K.S. Poon, W.D. Sacher, J.C. Mikkelsen, H. Jayatilleka, W.M.J. Green, S. Assefa, T. Barwicz, Huapu Pan, S.M. Shank, Y. Vlasov, R.J. Bojko, “Redesigning active and passive microring resonators,” 2013 IEEE Photonics Conference (IPC), 8-12 Sept. 2013, Bellevue, WA, USA. DOI: 10.1109/IPCon.2013.6656514

C48. H. Numata, Y. Taira, T. Barwicz, "Single-mode Polymer Waveguide Array for Low Power Optical Interconnect," The 2012 Autumn JSAP meeting (The Japan Society of Applied Physics), Ehime, Japan, Sep. 11-14, 2012.

C47. S. Assefa, S. Shank, W. Green,  M. Khater, E. Kiewra, C. Reinholm, S. Kamlapurkar, A. Rylyakov, C. Schow, F. Horst, H. Pan, T. Topuria, P. Rice, D.M. Gill, J. Rosenberg, T. Barwicz, Min Yang, J. Proesel, J. Hofrichter, B. Offrein, Xiaoxiong Gu, W. Haensch, J. Ellis-Monaghan, Y. Vlasov, “A 90nm CMOS integrated Nano-Photonics technology for 25Gbps WDM optical communications applications,” in proceedings of 2012 IEEE International Electron Devices Meeting (IEDM 2012),San Francisco, CA, USA, 10-13 Dec, 2012, paper 33.8.DOI: 10.1109/IEDM.2012.6479162

C46. Y. Taira, H. Numata, and T. Barwicz, “Polymer Optical Waveguide Based Single Mode Connector for Silicon Photonics Packaging” Frontiers in Optics (FiO), Rochester, NY, October 14, 2012, Poster Session II (FW3A).

C45. M. A. Van Camp, S. Assefa, D. M. Gill, T. Barwicz, S. M. Shank, Y. A. Vlasov, W. M. J. Green, "Silicon Nanophotonic Mid-IR Optical Modulator", 2012 Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, USA, May 06-11, 2012.

C44. W. D. Sacher, W. Green, S. Assefa, T. Barwicz, H. Pan, S. Shank, Y. Vlasov, and J. Poon “28 Gb/s Silicon Microring Modulation Beyond the Linewidth Limit by Coupling Modulation,” 2012 Optical Fiber Communication Conference (OFC), Los Angeles, California, March 4, 2012, paper OM3J.

C43. J.C Rosenberg, W.M.J. Green, S. Assefa, C.L. Schow, A.V. Rylyakov, D.M. Gill, B.G. Lee, C. Jahnes, T. Barwicz, S.M. Shank, Y.A. Vlasov, “High-speed and low-power microring modulators for silicon photonics (Invited)” in proceedings of IEEE Photonic Society 24th Annual Meeting, PHO 2011, p 256-257, 2011.

C42. M. S. Dahlem, M. A. Popovic, C. W. Holzwarth, A. Khilo,  T. Barwicz, H. I. Smith, F. X. Kartner, E. P. Ippen,”Electronic-photonic integrated circuits in silicon-on-insulator platforms” 2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011, 13-20 Aug. 2011, Istanbul, Turkey, DOI:10.1109/URSIGASS.2011.6050596

C41. W. D. Sacher, W. M. J. Green, S. Assefa, T. Barwicz, S. M. Shank, Y. A. Vlasov, J. K. S. Poon, “Controlled coupling in silicon microrings for high-speed, high extinction ratio, and low-chirp modulation (post-deadline),” 2011 Conference on Lasers and Electro-Optics (CLEO), Baltimore, Maryland, USA, 1-6 May, 2011.

C40. J. C. Rosenberg, W.M.J. Green, S. Assefa, T. Barwicz, M. Yang, S.M. Shank, Y.A. Vlasov, “Low-power 30 Gbps silicon microring modulator (postdeadline),” 2011 Conference on Lasers and Electro-Optics (CLEO), Baltimore, Maryland, USA, 1-6 May, 2011.

C39. T. Barwicz, K. B. Reuter, L. M. Gignac, G. M. Cohen, S. Bangsaruntip, J. W. Sleight, and S. Guha, “Top-Down Silicon Nanowires: Shape and Dimensional Control at the Sub-10-nm Scale (Invited),” MRS Fall Meeting, Boston MA, USA, Dec 2010, Paper Y7.2.

C38. T. Barwicz, C.W. Holzwarth, M.A. Popović, M.R. Watts, P.T. Rakich, F. Gan, M. Dahlem, F.X. Kärtner, E.P. Ippen, and H.I. Smith, “Microphotononic Resonator Control (Invited)”, Photonics North, Niagara Falls ON, June 2010.

C37. Jeffrey W. Sleight, Sarunya Bangsaruntip, Guy Cohen, Amlan Majumdar, Ying Zhang, Sebastian Engelmann, Nicholas Fuller, Lynne Gignac, Surbhi Mittal, Joseph Newbury, Tymon Barwicz, Martin M. Frank, Michael Guillorn, “High Performance and Highly Uniform Metal Hi-K Gate-All-Around Silicon Nanowire MOSFETs (Invited),” 217th ECS Meeting, Apr 26-27, 2010, Vancouver, Canada.

C36. S. Bangsaruntip, G. M. Cohen, A. Majumdar, Y. Zhang, S. U. Engelmann, N. C. M. Fuller, L. M. Gignac, S. Mittal, J. S. Newbury, M. Guillorn, T. Barwicz, L. Sekaric, M. M. Frank, and J. W. Sleight “High Performance and Highly Uniform Gate-All-Around Silicon Nanowire MOSFETs with Wire Size Dependent Scaling,” 2009 IEEE International Electron Devices Meeting, Baltimore, MD, Dec. 7-9, 2009.DI:10.1109/IEDM.2009.5424364

C35. M.A. Popovic,  P.T. Rakich, M.S. Dahlem, C.W. Holzwarth, T. Barwicz, F. Gan, H.I. Smith, F.X. Kartner, E.P. Ippen, “Dynamical systems in nanophotonics: From energy efficient modulators to light forces and optomechanics (Invited),” IEEE LEOS Annual Meeting Conference Proceedings,Belek-Antalya, Turkey, 4-8 Oct, 2009. DI:10.1109/LEOS.2009.5343120

C34. L. Klein, T. Barwicz, S. Guha, H. Hamann, “Heterodyne Optical Detection of Mechanical Resonances of Ultra High Frequency Silicon Micro-Resonators,” AVS 55th International Symposium and Exhibition, Boston, MA, Oct. 19-24, 2008.

C33. M.A. Popović, P.T. Rakich, T. Barwicz, M.S. Dahlem, F. Gan, C.W. Holzwarth, H.I. Smith, F.X. Kärtner and E.P. Ippen, “Circuit theory and microphotonic circuit design: from telecom-grade filters to light-powered micromachines (Invited),” in proceedings of the Integrated Photonics and Nanophotonics Research and Applications (IPNRA) OSA Topical Meeting, Boston, MA, USA, July 13-16, 2008, paper ITuA6.

C32. T. Barwicz, M.A. Popović, C.W. Holzwarth, M.R. Watts, P.T. Rakich, F. Gan, M. Dahlem, F.X. Kärtner, E.P. Ippen and H.I. Smith, “Challenges in nanofabrication of strong-confinement photonic devices (Invited)”, Conference on Electron, Ion, and Photon Beams and Nanofabrication (EIPBN), Portland, Oregon, May 27-30, 2008.

C31. M.A. Popović, T. Barwicz, P.T. Rakich, M.S. Dahlem, C.W. Holzwarth, F. Gan, L. Socci, M.R. Watts, H.I. Smith, F.X. Kärtner and E.P. Ippen, “Experimental demonstration of loop-coupled microring resonators for optimally sharp optical filters,” 2008 Conference on Lasers and Electro-Optics (CLEO), San Jose, CA, May 6, 2008, paper CTuNN3. DOI:10.1109/CLEO.2008.4551737

C30. M.A. Popović, T. Barwicz, M.S. Dahlem, F. Gan, C.W. Holzwarth, P.T. Rakich, M.R. Watts, H.I. Smith, E.P. Ippen and F.X. Kärtner, “Hitless-Reconfigurable and Bandwidth-Scalable Silicon Photonic Circuits for Telecom and Interconnect Applications (Invited),” presented at Optical Fiber Communication Conference (OFC), Feb 26, 2008, paper OTuF4.

C29. T. Barwicz, M.A. Popović, F. Gan, M.S. Dahlem, C.W. Holzwarth, P.T. Rakich, E.P. Ippen, F.X. Kärtner and H.I. Smith, “Reconfigurable silicon photonic circuits for telecommunication applications (invited),” in proceedings of Photonics West LASE2008, San Jose, CA, Jan 19-24, 2008. DI:10.1117/12.772740

C28. T. Barwicz, M.A. Popović, M.R. Watts, P.T. Rakich, C.W. Holzwarth, F.X. Kärtner, E.P. Ippen and H.I. Smith, “Strategies for the successful realization of strong confinement microphotonic devices (invited),” in proceedings of Photonics West OPTO2008, San Jose, CA, Jan 19-24, 2008. DI:10.1117/12.765986

C27. M.A. Popović, T. Barwicz, M.R. Watts, P.T. Rakich, M.S. Dahlem, F. Gan, C.W. Holzwarth, L. Socci, H.I. Smith, F.X. Kärtner, E.P. Ippen and H.I. Smith, “Strong-confinement microring resonator photonic circuits (Invited),” 20th Annual Meeting of the IEEE Lasers and Electro-Optics Society (LEOS), Lake Buena Vista, Florida, Oct 2007, paper TuCC3.

C26. M.A. Popović, T. Barwicz, M.S. Dahlem, F. Gan, C.W. Holzwarth, P.T. Rakich, H.I. Smith, E.P. Ippen and F.X. Kärtner, “Tunable, Fourth-Order Silicon Microring-Resonator Add-Drop Filters,” 2007 European Conference on Optical Communication, Berlin, Germany, Sep 2007, paper 1.2.3.

C25. F. Gan, T. Barwicz, M.A. Popović, M.S. Dahlem, C.W. Holzwarth, P.T. Rakich, H.I. Smith, E.P. Ippen and F.X. Kärtner, “Maximizing the Thermo-Optic Tuning Range of Silicon Photonic Structures,” IEEE/LEOS Photonics in Switching Conference, San Francisco, CA, Aug. 2007, paper TuB3.3.DI:10.1109/PS.2007.4300747

C24. M.A. Popović, T. Barwicz, F. Gan, M.S. Dahlem, C.W. Holzwarth, P.T. Rakich, H.I. Smith, E.P. Ippen and F.X. Kärtner, “Transparent wavelength switching of resonant filters (postdeadline),” 2007 Conference on Lasers and Electro-Optics (CLEO), Baltimore, MD, May 10, 2007, paper CPDA2. DI:10.1109/LEOS.2007.4382447

C23. T. Barwicz, C.W. Holzwarth, P.T. Rakich, M.A. Popović, E.P. Ippen and H.I. Smith, “Metallic-Contamination-Induced Optical Loss in Silicon Microphotonic Waveguides,” in Conference on Lasers and Electro-Optics (CLEO), OSA Technical Digest (Optical Society of America, Washington DC, May 6-11, 2007), paper CTuG5.

C22. H.I. Smith,  T. Barwicz,  C.W. Holzwarth,  M.A. Popović, M.R. Watts, P.T. Rakich, M. Qi, R. Barreto, F.X. Kärtner and E.P. Ippen, “Strategies for fabricating strong-confinement microring filters and circuits (Invited),” in Optical Fiber Communication Conference (OFC/NFOEC) Technical Digest (Optical Society of America, Washington, DC, March 25-29, 2007), paper OThC2.1.

C21. C.W. Holzwarth, T. Barwicz and H.I. Smith, “Optimization of hydrogen silsesquioxane films for photonic applications,” EIPBN 2007, Denver, CO.

C20. S. J. Spector, T. M. Lyszczarz, M. W. Geis, D. M. Lennon, J. U. Yoon, M. E. Grein, and R. T. Schulein, R. Amatya, J. Birge, J. Chen, H. Byun, F. Gan, C. W. Holzwarth, J. L. Hoyt, E. P. Ippen, F. X. Kaertner, A. Khilo, O. O. Olubuyide, J. S. Orcutt, M. Park, M. Perrott, M. A. Popovic, T. Barwicz, M. Dahlem, R. J. Ram, and H. I. Smith, "Integrated optical components in silicon for high speed analog-to-digital conversion," Proceedings of SPIE - The International Society for Optical Engineering, Silicon Photonics II, 6477, 64770O, 2007. DI:10.1117/12.705219

C19. F. X. Kartner, S. Akiyama, G. Barbastathis, T. Barwicz, H. Byun, D.T Danielson, F. Gan, F. Grawert, C.W Holzwarth, J.L. Hoyt, E.P. Ippen, M. Kim, L.C. Kimerling, J. Liu, J. Michel, O.O. Olubuyide, J.S. Orcutt, M. Park, M. Perrott, M.A. Popovic, P.T. Rakich, R.J. Ram, H.I. Smith, M.R. Watts, "Electronic photonic integrated circuits for high speed, high resolution, analog to digital conversion (Invited)," Proceedings of SPIE - The International Society for Optical Engineering, Silicon Photonics, 6125, 612503, 2006. DI:10.1117/12.655762

C18. T. Barwicz, M. Popovic, P.T. Rakich, M.R. Watts, F.X. Kaertner, E.P. Ippen and H.I. Smith, "Fabrication control of the resonance frequencies of high index-contrast microphotonic cavities (Invited)," in proceedings of the Integrated Photonics Research and Applications/Nanophotonics (IPRA), Uncasville, CT, USA, 24 April 2006, Paper# JWA3. DOI:10.1364/IPRA.2006.JWA3

C17. M.A. Popovic, T. Barwicz, E.P. Ippen, and F.X. Kärtner, “Global Design Rules for Silicon Microphotonic Waveguides: Sensitivity, Polarization and Resonance Tunability,” Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper CTuCC1. DOI:10.1109/CLEO.2006.4628157

C16. M.R. Watts, T. Barwicz, M.A. Popovic, M. Qi, P.T. Rakich, L. Socci, E.P. Ippen, F.X. Kaertner, H.I. Smith, and M. Romagnoli, “High-Index-Contrast Microphotonics from Concept to Implementation (Invited Paper),” Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper CTuM3. DOI:10.1109/CLEO.2006.4628242

C15. P. T. Rakich, M.A. Popovic, M.R. Watts, T. Barwicz, H.I. Smith, and E.P. Ippen, “Ultra-Widely Tunable Photonic Microcavities through Evanescent Field Perturbation,” CLEO/QELS 2006, CTuM2, Long Beach, CA. DI:10.1109/CLEO.2006.4628241

C14. C. Holzwarth, T. Barwicz, M.A. Popovic, P.T. Rakich, E.I. Ippen, F.X. Kaertner, H.I. Smith, “Accurate Resonant-Frequency Spacing of Microring Filters Without Post-Fabrication Trimming,” 50th International Conference on Electron, Ion and Photon Beam Technology and Nanofabrication (EIPBN 2006), Baltimore, MD, USA, 30 May - 3 Jun 2006. Paper 8B.4.

C13. M.R. Watts, M. Qi, T. Barwicz, M.A. Popovic, P.T. Rakich, L. Socci, E.P. Ippen, F.X. Kaertner and H.I. Smith, “Towards polarization independent high-index contrast microphotonics,” XXVIIIth General Assembly of the International Union of Radio Science (URSI), D07A, New Delhi, India (2005).

C12. T. Barwicz, "3D Analysis of scattering losses due to sidewall roughness in microphotonic waveguides: high-index contrast," Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper CWF7.

C11. M. A. Popovic, T. Barwicz, M.R.Watts, P. T. Rakich, L. Socci, E.P. Ippen, F.X. Kaertner and H.I. Smith, "Multistage high-order microring-resonator filters with relaxed tolerances for high through-port extinction," Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper CMP2.

C10. M.R. Watts, T. Barwicz, M. A. Popovic, P. T. Rakich, L. Socci, E.P. Ippen, F.X. Kaertner and H.I. Smith, "Microring-resonator filter with doubled free-spectral-range by two-point coupling," Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper CMP3.

C9.  M. Qi, M.R. Watts, T. Barwicz, L. Socci, P.T. Rakich, E.P. Ippen, H.I. Smith, "Fabrication of two-layer microphotonic structures without planarization," Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper CWD5.

C8.  D. Chao, A. Patel, T. Barwicz, H.I. Smith, and R. Menon, “Immersion Zone-Plate-Array Lithography” 2005 International Conference on Electron, Ion and Photon Beam Technology and Nanofabrication (EIPBN), Orlando FL, USA, 31 May - 03 Jun 2005.

C7.  Y. Ma, F. Cerrina, T. Barwicz, and H.I. Smith, “Theoretical and experimental study of electron beam exposure for microphotonic devices,” 2005 International Conference on Electron, Ion and Photon Beam Technology and Nanofabrication (EIPBN), Orlando FL, USA, 31 May - 03 Jun 2005.

C6.  M.R. Watts, M. Qi, T. Barwicz, L. Socci, P.T. Rakich, E.P. Ippen, H.I. Smith, H.A. Haus, "Towards integrated polarization diversity: design, fabrication and characterization of integrated polarization splitters and rotators (postdeadline)," Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, Technical Digest (CD) (Optical Society of America, 2005), paper PDP11.

C5.  M. A. Popovic, M.R. Watts, T. Barwicz, P. T. Rakich, L. Socci, E.P. Ippen, F.X. Kärtner and H.I. Smith, "High-index-contrast, wide-FSR microring-resonator filter design and realization with frequency-shift compensation," Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, Technical Digest (CD) (Optical Society of America, 2005), paper OFK1.

C4.  T. Barwicz, M. Popovic, P.T. Rakich, M.R. Watts, H.A. Haus, E.P. Ippen and H.I. Smith, "Fabrication and analysis of add/drop filters based on microring resonators in SiN," Optical Fiber Communication Conference, Technical Digest (CD) (Optical Society of America, 2004), paper TuL4.

C3.  C. Manolatou, M.A. Popovic, P.T. Rakich, T. Barwicz, H.A. Haus and E.P. Ippen, "Spectral anomalies due to coupling-induced frequency shifts in coupled-resonator filters," Optical Fiber Communication Conference, Technical Digest (CD) (Optical Society of America, 2004), paper TuD5.

C2.  T. Barwicz, H.A. Haus, H. I. Smith, "A three dimensional analysis of scattering losses due to sidewall roughness in integrated optical waveguides," Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference, Technical Digest (Optical Society of America, 2003), paper CWA49.

C1.  T. Barwicz and H.I.Smith, "Evolution of line-edge-roughness during fabrication of high-index-contrast microphotonic devices," The 47th International Conference on Electron, Ion and Photon Beam Technology and Nanofabrication (EIPBN 2003), Tampa FL.


A dynamic version of Dr. Barwicz's publication list is available through ResearchGate