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Terahertz and Ultrafast Spectroscopy Laboratory

Ingrid Wilke

Associate Professor of Physics

Rensselaer Polytechnic Institute

Department of Physics, Applied Physics and Astronomy

Jonsson Rowland Science Center (1 C20)

110 8th Street

Troy, NY 12180-3590 (USA)

phone: (518) 276 6318, fax: (518) 276 6680, email: wilkei@rpi.edu

Office hours: Wednesdays 2pm to 4pm, J-ROWL 1C20

Research group meeting: Monday 4pm to 5pm, J-ROWL 1C20

- Curriculum Vitae - Research Projects - Research Group

- Research in the News -

- Teaching - Service - Publications - Announcements - Links

Announcements back to top

Book publication:

Characterization of Terahertz Emission from High Resistivity Fe-doped Bulk Ga0.69In0.31As Based Photoconducting Antennas

Series: Springer Theses

Sengupta, Suranjana 2011, ISBN 978-1-4419-8197-4

Research in the News back to top

News release Rensselaer Polytechnic Institute: Nano Technique Allows Precise Injection of Living Cells (June 2007)

Biophotonics International: Femtosecond near-infrared pulses used for microinjection (p.24, July 2005)

Nature news and views in brief : A new source of terahertz radiation? (Nature vol. 429, p. 519, 3 June 2004)

Optics in 2002: Time-domain terahertz science improves relativistic electron-beam diagnostics

(OSA Optics & Photonics News, vol. 13, p. 16, December 2002)

Welt am Sonntag : Unternehmen schätzen die Logik der Physiker (Welt am Sonntag, 20 January 2002)

Offenbach Post : Offenbach vor 25 Jahren (Offenbach Post, Fruehjahr 2004)

Curriculum Vitae

Since 2008 Associate Professor of Physics, Rensselaer Polytechnic Institute, Troy NY (USA).

2002-2008 Assistant Professor of Physics, Rensselaer Polytechnic Institute, Troy NY (USA).

2002 Habilitation in Experimental Physics, University of Hamburg.

2001 Certificate in Higher Education, University of Hamburg.

1995-2002 Senior Research Associate (C1) at the Universitaet Hamburg (Germany), Institute of Applied Physics.

1994-1995 Post-Doc at the University of Tokyo (Japan), Institute of Industrial Science.

1993-1994 Post-Doc at the Lawrence Berkeley National Laboratory, Berkeley CA (USA).

1993 Doctoral Degree in Physics, Swiss Federal Institute of Technology (ETH) Zuerich.

1988-1992 Researcher at the Swiss Federal Institute of Technology (ETH) Zuerich (Switzerland), Institute of Quantum Electronics.

1988 Diplom in Physics, Universitaet Wuerzburg (Germany).

1986 M. Sc. in Physics, State University of New York (SUNY) at Albany, USA.

Research back to top

Terahertz (THz) Science & Technology, Ultrafast Laser Applications

THz-emission spectroscopy from narrow band gap semiconductors
THz-transmission / reflection spectroscopy of dielectrics, dielectric and conducting thin films, biological tissue
Applications of time-domain THz-methods in accelerator physics
Biological applications of ultrashort laser pulses

Experimental Methods

Time-domain THz-emission measurements
Time-domain THz transmission and reflection spectroscopy
Phase-sensitive backward wave oscillator based THz-spectroscopy
Femtosecond optical transient reflectivity and transmittivity measurements
Femtosecond optical four-wave mixing
Femtosecond laser nanoprocessing of living cells and fluorescence microscopy

More on my research

Research participation is available for interested undergraduate and graduate students.

Research Group back to top

Post-Doctoral Research Associate

Vidya Ramanathan

Graduate Students

Panagiotis Karampourniotis

Undergraduate Students

Ian Bornhoeft

George Jaar

Rachel Mathew

Former Graduate Students and Thesis Topics:

Suranjana Sengupta, PhD (Rensselaer Polytechnic Institute 2009)

Characterization of terahertz emission from high resistivity Fe-doped Ga_0.69In_0.31As based photoconducting antennas excited at 800nm

Present employment: Intel Corporation

Cheng Peng, PhD (Rensselaer Polytechnic Institute 2006)

Opto-injection into single living cells by femtosecond near-infrared laser

Present employment: Radiation Oncology, Thomas Jefferson University, Philadelphia PA

Ricardo Ascazubi, PhD (Rensselaer Polytechnic Institute 2005)

THz Emission Spectroscopy of Narrow Bandgap Semiconductors

Present employment: Intel Corporation

Dr. Maxim Khazan (University of Hamburg, Germany 2002)

Time-domain Terahertz Spectroscopy and its Application to the Study of High-Tc Superconductor Thin Films

Present employment: HiTech Solar

Dr. Tobias Korn (Diplomarbeit, University of Hamburg, Germany 2001)

Femtosecond Spectroscopy of LT-GaAs and Microcavities

Present employment: University of Regensburg, Germany.

Dipl. Phys. Hanns Selig (Diplomarbeit, University of Hamburg, Germany 2001)

Electro-optic sampling of Terahertz-Pulses

Present employment: Center of Applied Space Technology and Gravity, Bremen, Germany.

Dipl. Phys. Antonia Franke Wiekhorst (University of Hamburg, Germany)

Present employment: Freie Universitaet Berlin, Germany

Wenzhou Chen M.Sc. Physics (Rensselaer Polytechnic Institute 2004)

Dan Rainville M.Sc. Physics (Rensselaer Polytechnic Institute 2005)

Lauren OMalley M.Sc. Physics (Rensselaer Polytechnic Institute 2005)

Jianhui Tian M. Sc. Physics (Rensselaer Polytechnic Institute 2006)

Former Undergraduate Research Assistants:

Matthew Mitos-Jacobs B. Sc. Applied Physics & Electrical Engineering (Rensselaer Polytechnic Institute 2004)

Kyle Deniston (SUNY Geneseo), Research Experience for Undergraduates (REU) summer 2003

Carl Shneider B. Sc. Physics & Mathematics, M.Sc. Applied Mathematics (Rensselaer Polytechnic Institute 2006), Undergraduate research program (URP) summer 2004

Courtney Krest, St. John’s Fisher College, Research Experience for Undergraduates (REU) summer 2005

Erin McElmurray, B. Sc.. Biomedical Enginereering, (Rensselaer Polytechnic Institute 2007), Undergraduate research program (URP) summer 2006

Carl Siemon B. Sc. Physics (Rensselaer Polytechnic Institute 2007)

Present: University of Texas, Austin, Department of Physics

Joshua Sarver B. Sc. Physics , B. Sc.Psychology (Rensselaer Polytechnic Institute 2007)

Carolyn Gosztyla B. Sc. Biophysics / Biochemistry (Rensselaer Polytechnic Institute 2008)

Service back to top

Measurements of the optical constants of bulk dielectrics and dielectric thin films between 0.1-3THz
Characterization of Terahertz-emission from solids (bulk and thin films)

Teaching Spring 2013 back to top

PHYS 1250 Physics II Honors

Selected Puplications back to top

Ingrid Wilke, Yujie J. Ding, Tatiana V. Shubina

Optically- and Electrically-Stimulated Terahertz Radiation Emission from Indium Nitride

Journal of Infrared, Millimeter and Terahertz Waves 33, 559 (2012)

Suranjana Sengupta, Ingrid Wilke, Partha S. Dutta

Femtosecond carrier dynamics in native and high resistivity iron-doped Ga_xIn_1−xAs

Journal of Applied Physics 107, 033104 (2010).

Suranjana Sengupta, Ingrid Wilke, Partha S. Dutta

Ultrafast carrier mobilities in high-resistivity iron-doped Ga_0.69In_0.31As photoconducting antennas

Applied Physics Letters 95, 211102, (2009).

Ingrid Wilke, R. Ascazubi, H. Lu, W. J. Schaff

Terahertz emission from silicon and magnesium doped indium nitride

Applied Physics Letters 93, 221113 (2008).

Ingrid Wilke

Terahertz Spectroscopy

in Encyclopedia of Analytical Chemistry, edited by R. A. Meyers, John Wiley & Sons, Ltd. (2008).

Y. Ko, S. Sengupta, S. Tomasulo, P. Dutta, Ingrid Wilke

Emission of terahertz-frequency electromagnetic radiation from bulk Ga_xIn_1-xAs crystals

Physical Review B 78, 035201 (2008).

Ingrid Wilke, S. Sengupta

Nonlinear Optical Techniques for Terahertz Pulse Generation and Detection – Optical Rectification and Electrooptic Sampling

in Terahertz Spectroscopy : Principles and Applications, edited by S. L. Dexheimer, Optical Science and Engineering vol. 131, 41, CRC Press (2007).

C. Peng, R. E. Palazzo, Ingrid Wilke

Laser intensity dependence of femtosecond near-infrared optoinjection

Physical Review E 75, 041903 (2007).

R. Ascazubi, Ingrid Wilke, K. J. Kim, Partha Dutta

Terahertz emission from Ga _1-x In _x Sb

Physical Review B 74, 075323 (2006).

R. Ascazubi, Ingrid Wilke, S. Cho, H. Lu, W. Schaff

Ultrafast recombination in Si-doped InN

Applied Physics Letters 88, 112111 (2006).

R. Ascazubi, C. Shneider, Ingrid Wilke, R. Pino, P. Dutta

Enhanced terahertz emission from impurity-compensated GaSb

Physical Review B, 72, 045328 15. (2005).

R. Ascazubi, Ingrid Wilke, K. Denniston, H. Lu, W. Schaff

Terahertz emission by InN

Applied Physics Letters, 84, 4810 (2004).

Ingrid Wilke, A. M. MacLeod, W. A. Gillespie, G. Berden, G. M. H. Knippels, A. F. G. van der Meer
Single-shot electron-beam bunch length measurements
Physical Review. Letters 88, 124801 (2002) pdf

Ingrid Wilke, T. Korn, U. Pape, F. Hollweg, Praktikumsversuch: Erzeugung und Messung von Magnetfeldern [English: Introductory laboratory experiment: Generation and measurements of magnetic fields], Verhandl. DPG (VI) 37, 4/ 53 (2002). (poster pdf)

T. Korn, A. Jaye, S. Schnüll, Ingrid Wilke
Characterization of nanometer As-clusters in low-temperature grown GaAs by transient reflectivity measurements
Journal of. Applied. Physics 91, 2333 (2002) pdf

M. Khazan, R. Meissner, Ingrid Wilke
Convertible transmission-reflection time-domain terahertz spectrometer
Review of Scientific Instruments 72, 3427 (2001) pdf

H. Nemec, A. Pashkin, P. Kuzel, M. Khazan, S. Schnüll, Ingrid Wilke
Carrier dynamics in low-temperature grown GaAs studied by THz emission spectroscopy
Journal of Applied Physics 90, 1303 (2001) pdf

M. Khazan, Ingrid Wilke, C. Stevens
Surface impedance of Tl-2212 thin films at THz-frequencies
IEEE Transactions on Applied Superconductivity vol.11, pt.III, 3537 (2001) pdf

Ingrid Wilke, M.Khazan, C.T.Rieck, T.Kaiser, P.Kuzel, C.Jaekel, H.Kurz
Terahertz surface resistance of high temperature superconducting thin films
Journal of Applied Physics 87, 2984 (2000) pdf

C.Nowak, Ingrid Wilke, U.Wollmer (Hg.)
Kiss The Future ! Physikerinnen stellen sich vor, Tagungsband der Deutschen Physikerinnentagung 1998
Verlag Hoffmann und Hoyer 1999

Ingrid Wilke
T-Strahlen - oder kohärente Terahertzspektroskopie mit photoleitenden Dünnfilmantennen
in Phasensprung - Physikerinnen stellen sich vor, Hrg. S.Petrak, B.Sandow,
Wissenschaftlerinnen-Forum Band 5, 74, Verlag Hoffmann & Hoyer 1998

S.D.Ganichev, E.Ziemann, Th.Gleim, W.Prettl, I.N.Yassievich,V.I.Perel, Ingrid Wilke, E.E.Haller
Carrier tunneling in high-frequency electric fields
Physical Review Letters, 80 (11), 2409 (1998) pdf

K.Hirakawa, Ingrid Wilke, K.Yamanaka, H.G.Roskos, M.Vossebürger, F.Wolter,C.Waschke, H.Kurz, M.Grayson, D.C.Tsui
Coherent submillimeter-wave emission from non-equilibrium two-dimensional free carrier plasmas in AlGaAs/GaAs heterojunctions
Surface Science 361/362, 368 (1996)

M.Vossebürger, H.G.Roskos, F.Wolter, C.Waschke, H.Kurz, K.Hirakawa, Ingrid Wilke, K.Yamanaka
Radiative decay of optically excited coherent plasmons in a two-dimensional electron gas
Journal of the. Optical Society of America A 13, 1045 (1996) pdf

O.D.Dubon, Ingrid Wilke, J.W.Beeman, E.E.Haller
Dependence of the hole lifetime on uniaxial stress in Ga-doped Ge
Physical Review B51, 7349 (1995) pdf

Ingrid Wilke, O.D.Dubon, J.W.Beeman, E.E.Haller
Spectroscopy of the hole population in bound excited acceptor states during recombination in p-type Ge
Solid State Communications 93, 4309 (1995).

Ingrid Wilke, Y.Oppliger, W.Herrmann, F.K.Kneubuehl
Nanometer thin-film Ni-NiO-Ni diodes for 30THz radiation
Applied Physics A 58, 329 (1994)

Ingrid Wilke, W.Herrmann, F.K.Kneubuehl
Integrated nanostrip dipole antennas for coherent 30THz infrared radiation
Applied Physics. B 58, 87 (1994)

H.C. Petzold, R.Putzar, U.Weigmann, Ingrid Wilke
Repair of clear x-ray mask defects by laser-induced metal deposition
Microelectronic Engineering 6, 623 (1987)