Roland Germann  Roland Germann photo       

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Manager Nanocenter Operations
Zurich Research Laboratory, Zurich, Switzerland
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Professional Associations

Professional Associations:  Deutsche Physikalische Gesellschaft (DPG)

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More information:  Binnig and Rohrer Nanotechnology Center


2009

H plasma cleaning and a-Si passivation of GaAs for surface channel device applications
C. Marchiori, DJ Webb, C. Rossel, M. Richter, M. Sousa, C. Gerl, R. Germann, C. Andersson, J. Fompeyrine
Journal of Applied Physics 106(11), 114112, 2009


2008

Ge p-channel MOSFETS with La2O3 and Al2O3 gate dielectrics
C. Rossel, A. Dimoulas, A. Tapponnier, D. Caimi, DJ Webb, C. Andersson, M. Sousa, C. Marchiori, H. Siegwart, J. Fompeyrine, others
Solid-State Device Research Conference, 2008. ESSDERC 2008. 38th European, pp. 79-82

Inversion mode n-channel GaAs field effect transistor with high-k/metal gate
JP De Souza, E Kiewra, Y Sun, A Callegari, DK Sadana, G Shahidi, DJ Webb, J Fompeyrine, R Germann, C Rossel, others
Applied Physics Letters92, 153508, 2008


2007

Post-Si CMOS: III-V n-MOSFETs with High-k Gate Dielectrics
Y. Sun, SJ Koester, EW Kiewra, JP de Souza, N. Ruiz, JJ Bucchignano, A. Callegari, KE Fogel, DK Sadana, J. Fompeyrine, others
Compound Semiconductor Integrated Circuit Symposium, 2007

Enhancement-Mode Buried-Channel In0.7Ga0.3As/In0.52A0.48As MOSFETs With High-k Gate Dielectrics
Y Sun, EW Kiewra, SJ Koester, N Ruiz, A Callegari, KE Fogel, DK Sadana, J Fompeyrine, DJ Webb, J P Locquet, others
Electron Device Letters, IEEE 28(6), 473-475, IEEE, 2007

Optical properties of epitaxial SrHfO thin films grown on Si
M Sousa, C Rossel, C Marchiori, H Siegwart, D Caimi, J P Locquet, DJ Webb, R Germann, J Fompeyrine, K Babich, others
Journal of Applied Physics102, 104103, 2007

In-situ MBE Si as passivating interlayer on GaAs for HfO2 MOSCAPs: Effect of GaAs surface reconstruction
DJ Webb, J. Fompeyrine, S. Nakagawa, A. Dimoulas, C. Rossel, M. Sousa, R. Germann, SF Alvarado, J.P. Locquet, C. Marchiori
Microelectronic Engineering 84(9), 2142-2145, 2007

SrHfO3 as gate dielectric for future CMOS technology
C. Rossel, M. Sousa, C. Marchiori, J. Fompeyrine, D. Webb, D. Caimi, B. Mereu, A. Ispas, J.P. Locquet, H. Siegwart
Microelectronic Engineering 84(9), 1869-1873, 2007


2006

B-site substitution in LaTiO3 thin films: influence on the titanium oxidation state.
A Guiller, C Marchiori, M Sousa, R Germann, JP Locquet, J Fompeyrine, JW Seo
Bulletin of the American Physical Society, APS, 2006

GaAs MOS Capacitors and Self-Aligned MOSFETs with HfO2 Gate Dielectrics
SJ Koester, EW Kiewra, Y. Sun, DA Neumayer, JA Ott, DK Sadana, DJ Webb, J. Fompeyrine, J.P. Locquet, M. Sousa, others
Device Research Conference, 2006 64th, pp. 43-44

Evidence of electron and hole inversion in GaAs metal-oxide-semiconductor capacitors with HfO gate dielectrics and alpha-Si/ SiO interlayers
SJ Koester, EW Kiewra, Y Sun, DA Neumayer, JA Ott, M Copel, DK Sadana, DJ Webb, J Fompeyrine, J P Locquet, others
Applied physics letters89, 042104, 2006

Buried-channel In0.70Ga0.30As/In0.52Al0.48As MOS capacitors and transistors with HfO2 gate dielectrics
Y. Sun, SJ Koester, EW Kiewra, KE Fogel, DK Sadana, DJ Webb, J. Fompeyrine, J.P. Locquet, M. Sousa, R. Germann
64th Device Research Conference, pp. 49-50, 2006

Field-effect transistors with SrHfO3 as gate oxide
C. Rossel, B. Mereu, C. Marchiori, D. Caimi, M. Sousa, A. Guiller, H. Siegwart, R. Germann, J.P. Locquet, J. Fompeyrine
Applied Physics Letters 89(5), 053506, AIP, 2006


2005

Packaging the blue gene/l supercomputer
P Coteus, HR Bickford, TM Cipolla, PG Crumley, A Gara, SA Hall, GV Kopcsay, AP Lanzetta, LS Mok, R Rand, others
IBM Journal of Research and Development 49(2.3), 213--248, IBM, 2005


2004

Polarization-independent thermooptic phase shifters in silicon-oxynitride waveguides
B.J. Offrein, D. Jubin, T. Koster, T. Brunschwiler, F. Horst, D. Wiesmann, G. I. Meijer, M. Sousa Petit, D. Webb, R. Germann
Photonics Technology Letters 16, 1483, 2004


2003

Photonic Materials
H Hillmer, R Germann
MRS BULLETIN, 341, Cambridge Univ Press, 2003

Add-drop filter based on apodized surface-corrugated gratings
Dorothea Wiesmann, Roland Germann, Gian-Luca Bona, Christian David, Daniel Erni, and Heinz Jäckel
JOSA B 20(3), 417-423, Optical Society of America, 2003

Compact tunable FIR dispersion compensator in SiON technology
F. Horst, R. Germann, U. Bapst, D. Wiesmann, BJ Offrein, GL Bona
Photonics Technology Letters, IEEE 15(11), 1570--1572, IEEE, 2003

SiON high-refractive-index waveguide and planar lightwave circuits
G L Bona, R Germann, B J Offrein
IBM Journal of Research and Development 47(2.3), 239--249, IBM, 2003


2002

Tunable Dispersion Compensators realized in high-refractive-index-contrast SiOn technology
GL Bona, F. Horst, R. Germann, BJ Offrein, D. Wiesmann
Optical Communication, 2002. ECOC 2002. 28th European Conference on, pp. 1--2


2001

Apodised Bragg gratings in planar waveguides for add-drop filters
C. David, D. Wiesmann, R. Germann, F. Horst, BJ Offrein, R. Beyeler, HWM Salemink, GL Bona
Microelectronic engineering57, 713-719, Elsevier, 2001


2000

Integrated optic tunable add-drop filters for WDM ring networks
S Rotolo, A Tanzi, S Brunazzi, D DiMola, L Cibinetto, M Lenzi, G L Bona, B J Offrein, F Horst, R Germann, others
Journal of lightwave technology 18(4), 569, IEEE, 2000

Tunable passband flattened 1-from-16 binary-tree structured add-after-drop multiplexer using SiON waveguide technology
CGH Roeloffzen, F Horst, BJ Offrein, R Germann, GL Bona, HWM Salemink, RM De Ridder
Photonics Technology Letters, IEEE 12(9), 1201--1203, IEEE, 2000

Adaptive gain equalizer in high-index-contrast SiON technology
BJ Offrein, F Horst, GL Bona, R Germann, HWM Salemink, R Beyeler
Photonics Technology Letters, IEEE 12(5), 504--506, IEEE, 2000

Corrections to a resonant coupler-based tunable add-after-drop filter in silicon-oxynitride technology for WDM networks
BJ Offrein, R Germann, F Horst, HWM Salemink, R Beyeler, GL Bona
Selected Topics in Quantum Electronics, IEEE Journal of 6(1), 207--207, IEEE, 2000

SiON-based integrated optics devices for WDM networks
F. Horst, R. Beyeler, GL Bona, R. Germann, BJ Offrein, CGH Roeloffzen, HWM Salemink, D. Wiesmann
Proc. 13th Annu. Meeting IEEE Laser Electro-Optics Soc, pp. 13--16, 2000

Apodized surface-corrugated gratings with varying duty cycles
D. Wiesmann, C. David, R. Germann, D. Emi, GL Bona
Photonics Technology Letters, IEEE 12(6), 639-641, IEEE, 2000

Compact, tunable optical devices in silicon-oxynitride waveguide technology
F Horst, R Beyeler, G L Bona, E Flueck, R Germann, B Offrein, H Salemink, D Wiesmann
Integrated Photonics Research, Citeseer, 2000


1999

Resonant coupler-based tunable add after-drop filter in silicon-oxynitride technology for WDM networks
BJ Offrein, R Germann, F Horst, HWM Salemink, R Beyeler, GL Bona
Selected Topics in Quantum Electronics, IEEE Journal of 5(5), 1400--1406, IEEE, 1999

APODISED BRAGG GRATINGS IN SiON PLANAR WAVEGUIDES
D Wiesmann, D Erni, BJ Offrein, F Horst, R Germann, GL Bona
Laboratory for Micro- and Nanotechnology, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland PSI annual report, 1999

Negative index growth in germanium-free nitrogen-doped planar SiO2 waveguides
D Wiesmann, J Huebner, R Germann, BJ Offrein, G L Bona, M Kristensen, H Jaeckel
Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, 1999

Adaptive gain and channel equalization filters for applications in optical networks
BJ Offrein, GL Bona, R Germann, F Horst, HWM Salemink
Lasers and Electro-Optics Society 1999 12th Annual Meeting, pp. 547--548

Tunable WDM add/drop components in silicon-oxynitride waveguide technology
BJ Offrein, F Horst, G L Bona, R Germann, HWM Salemink
Electronic Components and Technology Conference, 1999, pp. 19--25

Compact 1-to-8, double 1-to-4 or fourfold 1-to-2 space switch based on beam steering by a waveguide array
F Horst, E Fluck, BJ Offrein, R Germann, HWM Salemink, G L Bona
Electronic Components and Technology Conference, 1999, pp. 922--926

Silicon-oxynitride (SiON) for photonic integrated circuits
HWM Salemink, F Horst, R Germann, BJ Offrein, GL Bona
MRS Proceedings, 1999

Wavelength-tunable add/drop filter for optical networks
R Germann, R Beyeler, GL Bona, F Horst, BJ Offrein, HWM Salemink
Optical Fiber Communication Conference, 1999, and the International Conference on Integrated Optics and Optical Fiber Communication, pp. 268--270

Compact versatile thermooptical space switch based on beam steering by a waveguide array
E Fluck, F Horst, BJ Offrein, R Germann, WM Salemink, G L Bona
Photonics Technology Letters, IEEE 11(11), 1399--1401, IEEE, 1999

Versatile silicon-oxynitride planar lightwave circuits for interconnect applications
GL Bona, R Germann, F Horst, BJ Offrein, HWM Salemink
Parallel Interconnects, 1999, pp. 145--148

Wavelength tunable 1-from-16 and flat passband 1-from-8 add-drop filters
BJ Offrein, F Horst, GL Bona, HWM Salemink, R Germann, R Beyeler
Photonics Technology Letters, IEEE 11(11), 1440--1442, IEEE, 1999


1998

A very short planar silica spot-size converter using a nonperiodic segmented waveguide
B J Offrein, G L Bona, R Germann, I Massarek, D Erni, others
Journal of lightwave technology 16(9), 1680, IEEE, 1998

Compact spot-size converter using nonperiodic segments for high refractive index contrast planar waveguides
M M Spuehler, B J Offrein, G L Bona, R Germann, D Erni
European Conference on Lasers and Electro-Optics CLEO 98, pp. 234, 1998

Large UV-induced negative index changes in germanium-free nitrogen-doped planar SiO2 guides
D. Wiesmann, J. Hubner, R. Germann, I. Massarek, HWM Salemink, GL Bona, M. Kristensen, H. Jackel
Electronics Letters 34(4), 364-366, IET, 1998

Tunable optical add/drop components in silicon-oxynitride waveguide structures
BJ Offrein, R Germann, GL Bona, F Morst, HWM Salemink
Optical Communication, 1998, pp. 325--326


1997

Dopamine and intestinal mucosal tissue oxygenation in a porcine model of haemorrhage.
R. Germann, M. Haisjackl, B. Schwarz, N. Salak, E. Deusch, W. Pajk, HJ Wolf, B. Riedmann, W. Hasibeder
British journal of anaesthesia 79(3), 357-362, British Jrnl Anaesthesia, 1997


1996

Principles of materials etching
R Germann
Nanofabrication and biosystems: integrating materials science, engineering, and biology, 18, Cambridge Univ Pr, 1996

Low cost packaging of semiconductor laser arrays using passive self-aligned flip-chip technique on Si motherboard
W Hunziker, W Vogt, H Melchior, R Germann, C Harder
Electronic Components and Technology Conference, 1996, pp. 8--12


1995

Laser array concepts for parallel optical interconnects
GL Bona, R Germann, P Vettiger
Lasers and Electro-Optics Society Annual Meeting, 1995, pp. 103--104

Microfabrication of lenses of a miniaturized electron column
M. Despont, U. Staufer, C. Stebler, R. Germann, P. Vettiger
Microelectronic Engineering 27(1), 467-470, Elsevier, 1995


1994

High-resolution electron-beam lithography for fabricating visible semiconductor lasers with curved mirrors and integrated holograms
P Unger, V Boegli, P Buchmann, R Germann
Microelectronic Engineering 23(1), 461--464, Elsevier, 1994


1993

Transform-limited picosecond optical pulses from a mode-locked InGaAs/AlGaAs QW laser with integrated passive waveguide cavity and QW modulator
LR Brovelli, R Germann, JP Reithmaier, H Jackel, HP Meier, H Melchior
Photonics Technology Letters, IEEE 5(8), 896--899, IEEE, 1993

Reactive ion etching of InAlAs with Ar/Cl2 mixtures for ridge waveguide lasers
R Germann, S Hausser, J P Reithmaier
Microelectronic Engineering 21(1-4), 345--348, Elsevier, 1993

Low-threshold strained GaInP quantum-well ridge lasers with AlGaAs cladding layers
P Unger, G L Bona, R Germann, P Roentgen, D J Webb
Semiconductor Laser Conference, 1992, pp. 1880--1884, IEEE, 1993

Regrowth of InP by MOVPE on dry-etched heterostructures of InP-GaInAsP
A Catana, RF Broom, R Germann, P Roentgen
Journal of crystal growth 129(3-4), 779--782, Elsevier, 1993

1.3 $\mu$m multiquantum well decoupled confinement heterostructure (MQW-DCH) laser diodes
S Hausser, HP Meier, R Germann, C S Harder
Quantum Electronics, IEEE Journal of 29(6), 1596--1600, IEEE, 1993

Vertical transport and tunnelling through squeezable quantum dots
N. Blanc, P. Gueret, R. Germann, H. Rothuizen
Physica B: Condensed Matter 189(1), 135-141, Elsevier, 1993

Fabrication of curved mirrors for visible semiconductor lasers using electron-beam lithography and chemically assisted ion-beam etching
P Unger, V Boegli, P Buchmann, R Germann
Journal of Vacuum Science \& Technology B: Microelectronics and Nanometer Structures 11(6), 2514--2518, AVS, 1993


1992

Gueret, Blanc, Germann, and Rothuizen reply
P Gueret, N Blanc, R Germann, H Rothuizen
Physical review letters 69(20), 2996, APS, 1992

Vertical transport in Schottky-gated, laterally confined double-barrier quantum well heterostructures
P Gueret, N Blanc, R Germann, H Rothuizen
Surface science 263(1), 212-216, Elsevier, 1992

Confinement and single-electron tunneling in Schottky-gated, laterally squeezed double-barrier quantum-well heterostructures
P. Gueret, N. Blanc, R. Germann, H. Rothuizen
Physical Review Letters 68(12), 1896-1899, APS, 1992


1991

Transport and optical properties of semiconductor quantum wires
A Forchel, A Menschig, BE Maile, H Leier, R Germann
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures 9(2), 444--450, AVS, 1991

Study of vertical transport through Schottky-gated, laterally confined quantum-dot devices
N. Blanc, P. Guèret, R. Germann, H. Rothuizen
Microelectronic Engineering 15(1), 671-674, Elsevier, 1991


1990

Optical Spectroscopy on One-Dimensional Compound Semiconductor Structures
A Forchel, BE Maile, H Leier, G Mayer, R Germann
physica status solidi (b) 159(1), 457--470, Wiley Online Library, 1990

In0. 53Ga0. 47As/InP quantum wires: Fabrication and magnetotransport studies
A Menschig, B Roos, R Germann, A Forchel, K Pressel, W Heuring, D Grutzmacher
Journal of Vacuum Science \& Technology B: Microelectronics and Nanometer Structures 8(6), 1353--1356, AVS, 1990

Erratum: Fabrication and optical characterization of quantum wires from semiconductor materials with varying In content [J. Vac. Sci. Technol. B [bold 7], 2030 (1989)]
BE Maile, A Forchel, R Germann, D Gr{"u}tzmacher, HP Meier, J P Reithmaier
Journal of Vacuum Science \& Technology B: Microelectronics and Nanometer Structures8, 658, 1990

CW and time resolved luminescence study of dry etch damage in semiconductor wires
BE Maile, G Mayer, R Germann, A Forchel, HP Meier
Microelectronic engineering 11(1), 595--598, Elsevier, 1990

Magnetotransport in narrow In0. 53Ga0. 47As/InP wires
A Menschig, A Forchel, B Roos, R Germann, K Pressel, W Heuring, D Grutzmacher
Applied Physics Letters 57(17), 1757--1759, AIP, 1990

Time-resolved investigations of sidewall recombination in dry-etched GaAs wires
G Mayer, BE Maile, R Germann, A Forchel, P Grambow, HP Meier
Applied physics letters 56(20), 2016--2018, AIP, 1990


1989

Time resolved spectroscopy on etched GaAs/GaAlAs-quantum-microstructures
G Mayer, BE Maile, R Germann, A Forchel, HP Meier
Superlattices and Microstructures 5(4), 579--582, Elsevier, 1989

Fabrication and optical characterization of quantum wires from semiconductor materials with varying In content
BE Maile, A Forchel, R Germann, D Grutzmacher, HP Meier, J P Reithmaier
Journal of Vacuum Science \& Technology B: Microelectronics and Nanometer Structures 7(6), 2030--2033, AVS, 1989

Energy dependence and depth distribution of dry etching-induced damage in III/V semiconductor heterostructures
R Germann, A Forchel, M Bresch, HP Meier
Journal of Vacuum Science \& Technology B: Microelectronics and Nanometer Structures 7(6), 1475--1478, AVS, 1989


1988

Fabrication and optical spectroscopy of ultra small III--V compound semiconductor structures
A Forchel, H Leier, B Maile, R Germann
Festkoerperprobleme 28, Springer, 1988 , 99--119, Springer


1987

Fabrication of nanometer width GaAs/AlGaAs and InGaAs/InP quantum wires
BE Maile, A Forchel, R Germann, A Menschig, K Streubel, F Scholz, G Weimann, W Schlapp
Microelectronic Engineering 6(1-4), 163--168, Elsevier, 1987


Year Unknown

Characterization Of Dry Etch Induced In Ill/V Micro-structures
R Germann
Epitaxial Materials and In-Situ Processing for Optoelectronic Devices, 1991/Microfabrication for Photonics and Optoelectronics, 1991, pp. 33--34, 0