Dr. Tobias Voss

Main research interests:

• Semiconductor nanowires for optoelectronic and sensing applications
• Silica nanowires and nanophotonic devices
• Zincoxide-based semiconductor structures
• Ultrafast dynamics in semiconductors
• Surface structuring and material modification with femtosecond pulses

My Projects: Nanowire Research Homepage  

We are part of the Semiconductor Optics Group

and the Priority Programm 1165 of the German Research Foundation
"Nanowires and Nanotubes: from controlled synthesis to function"

since Dec 08

University of Bremen, Bremen, Germany
Privatdozent (equivalent to assistant professor) at the Institute of Solid State Physics

Dec 08

Habilitation for experimental physics at the Faculty of Physics and Electrical Engineering of the University of Bremen
Thesis: Zincoxide Nanowires - Material Properties and Nanophotonic Devices

July 07 - Dec 08

University of Bremen, Bremen, Germany
Postdoc at the Institue of Solid State Physics
Prof. Dr. Jürgen Gutowski

July 06 - June 07

Harvard University, Cambridge, MA, USA
Visiting Scientist/Postdoc at the School of Engineering and Applied Sciences
Prof. Dr. Eric Mazur

June 04 - July 06

University of Bremen, Bremen, Germany
Postdoc at the Institue of Solid State Physics
Prof. Dr. Jürgen Gutowski

May 04

Graduation 'Dr. rer. nat.', University of Bremen

October 01 - May 04

University of Bremen, Bremen,Germany
Doctorate student at the Institue of Solid State Physics
Prof. Dr. Jürgen Gutowski

September 01

Graduation 'Diplom-Physiker', Clausthal University of Technology

Oct. 99 - Sept. 01

Clausthal University of Technology, Clausthal, Germany
Diploma student
Prof. Dr. Wolfgang Schade

July 99 - Oct. 99

JILA / University of Colorado at Boulder, Boulder, CO, USA
Visiting scholar
Prof. Dr. Steven R. Leone

Oct. 96 - Sept. 01

Clausthal University of Technology, Clausthal, Germany
Student of physics and mathematics

May 96 - June 96

H.C. Starck Company (chemical and metallurgic industry), Goslar, Germany
Internship at the central physics laboratory for quality management

Full list of publications


Selected publications


Influence of metallic coatings on the photoluminescence properties of ZnO nanowires
J.-P. Richters, A. Dev, S. Müller, R. Niepelt, C. Borschel, C. Ronning, and T. Voss
Physica Status Solidi Rapid Research Letters 3, 166-168 (2009); selected for journal cover.

Exciton-related electroluminescence from ZnO nanowire light-emitting diodes
M. A. Zimmler, T. Voss, C. Ronning, and F. Capasso
Applied Physics Letters 94, 241120 (2009).

Optical transmission of a ZnO nanowire waveguide under femtosecond-pulse excitation
T. Voss, G. T. Svacha, S. Müller, C. Ronning, and E. Mazur
Nanotechnology 20, 095702 (2009).

Waveguiding and optical coupling in ZnO nanowires and tapered silica fibers
T. Voss
Advances of Solid State Physics 48, 57-64 (2009).

Enhanced surface-excitonic photoluminescence in ZnO/Al2O3 core-shell nanowires
J.-P. Richters, D. S. Kim, R. Scholz, M. Zacharias, and T. Voss
Nanotechnology 19, 305202 (2008).

Scalable fabrication of nanowire photonic and electronic circuits using spin-on glass
M. A. Zimmler, D. Stichtenoth, C. Ronning, W. Yi, V. Narayanamurti, T. Voss, and F. Capasso
Nano Letters 8, 1695 (2008).

Hollow zinc oxide mesocrystals from an ionic liquid precursor
Z. Li, A. Gessner, J.-P. Richters, J. Kalden, T. Voss, C. Kübel, and A. Teubert
Advanced Materials 20, 1279 (2008).

Influence of polymer coating on the low-temperature photoluminescence properties of ZnO nanowires
J.-P. Richters, T. Voss, I. Rückmann, and J. Gutowski
Appl. Phys. Lett. 92, 011103 (2008).

Recombination Dynamics of Surface-Related Excitonic States in Single ZnO Nanowires
T. Voss, L. Wischmeier
J. Nanosci. Nanotechnol. 8, 228-232 (2008).

High-order waveguide modes in ZnO nanowires
T. Voss, G. T. Svacha, S. Müller, C. Ronning, D. Konjhodzic, F. Marlow, and E. Mazur
Nano Letters 7, 3675 (2007).

Dynamics of surface-excitonic emission in ZnO nanorods
L. Wischmeier, T. Voss, I. Rückmann, and J. Gutowski, A. C. Mofor, A. Bakin, and A. Waag
Phys. Rev. B 74, 195333 (2006).

Influence of exciton-phonon coupling on the energy position of the near band-edge emission in ZnO nanowires
T. Voss, C. Bekeny, L. Wischmeier, H. Gafsi, S. Börner, W. Schade, A. C. Mofor, A. Bakin, and A. Waag
Appl. Phys. Lett 89, 182107 (2006).

Coherent control of the exciton and exciton-biexciton transitions in the generation of nonlinear wave-mixing signals in a semiconductor quantum well
T. Voss, I. Rückmann, J. Gutowski, V. M. Axt, and T. Kuhn
Phys.Rev. B 73, 115311 (2006).

Basic Physics of Semiconductor Lasers
T. Voss and J. Gutowski
Advances in Spectroscopy for Lasers and Sensing, 365-402, Springer (2006).

A microchip-laser-pumped DFB-polymer-dye laser
T. Voss, D. Scheel, and W. Schade
Appl. Phys. B 73, 105-109 (2001).

• Femtosecond spectroscopy in solid state physics
  scheduled for WiSe 2009/10
  


• Nanotechnology: Physics of semiconductor nanowires and nanotubes
  SoSe 2009
  


• Advanced Solid State Physics
  WiSe 2008/09
  


• Nanotechnology: Physics of semiconductor nanowires and nanotubes
  SoSe 2008
  


• Seminar "Photonics: Basics and Applications"
  SoSe 2004 and SoSe 2005


• Fortgeschrittenen-Praktikum
  Autocorrelation measurements of femtosecond laser pulses, Liquid-crystal light modulator official web page