Experimental Research Groups

Our experimental research groups and links to some of their recent research results.

Itzik Ben-Itzhak's Group

Itzik's group studies ionization and dissociation of molecules in intense laser fields.

Measurements of Ultrashort Intense Laser-induced Fragmentation of Simple Molecular Ions
PhD disseration of Max Sayler.
Single-shot carrier-envelope-phase-tagged ion-momentum imaging of nonsequential double ionization of argon in intense 4-fs laser fields
Nora G. Johnson, O. Herrwerth, A. Wirth, S. De, I. Ben-Itzhak, M. Lezius, B. Bergues, M. F. Kling, A. Senftleben, C. D. Schröter, R. Moshammer, J. Ullrich, K. J. Betsch, R. R. Jones, A. M. Sayler, T. Rathje, K. Rühle, W. Müller, G. G. Paulus
Phys. Rev. A 83, 013412 (2011)

Lew Cocke's Group

Lew's group is pioneering techniques for momentum imaging of ion and molecule collisions.

Photo-electron Momentum Distribution and Electron Localization Studies from Laser-Induced Atomic and Molecular Dissociations
The PhD disseration of Dipanwita Ray.
Momentum spectra of electrons rescattered from rare-gas targets following their extraction by one- and two-color femtosecond laser pulses
D. Ray, Zhangjin Chen, S. De, W. Cao, I. V. Litvinyuk, A. T. Le, C. D. Lin, M. F. Kling, C. L. Cocke
Phys. Rev. A 83, 013410 (2011)

Zenghu Chang's Group

Zenghu has joined the faculty of the University of Central Florida, but remains an adjunct professor at KSU. His remaining group continues to study fundamental photon-atom processes and high harmonic generation.

Double Optical Gating
The PhD dissertation of Steve Gilbertson.
The Attosecond Revolution
This article by Paul Corkum and Zenghu Chang is the cover story in the October 2008 Optics & Photonics News. The full text is available as a web page or as an Acrobat file.

Kristan Corwin's Group

Kristan and her LUMOS group focus on optical metrology. They are studying optical frequency metrology using ultrafast lasers and supercontinuum generation.

Using Saturated Absorption Spectroscopy on Acetylene-Filled Hollow-Core Fibers for Absolute Frequency Measurements
PhD dissertation of Kevin Knabe.
C2H2 gas laser inside hollow-core photonic crystal fiber based on population inversion
Andrew M. Jones, A. V. Vasudevan Nampoothiri, Amarin Ratanavis, Rajesh Kadel, Natalie V. Wheeler, Francois Couny, Fetah Benabid, Wolfgang Rudolph, Brian R. Washburn, Kristan L. Corwin
CLEO/QELS Proceedings CTuU1, 1 (2010)

Brett DePaola's Group

Brett's group is using atoms in a magneto-optical trap (MOT) as the ultimate cold target for ion-atom collision studies.

Interaction of a Finite Train of Short Optical Pulses with a Ladder System
The PhD dissertation of Hyounguk Jang.
Coherent Population Trapping with Controlled Interparticle Interactions
H. Schempp, G. Günter, C. S. Hofmann, C. Giese, S. D. Saliba, B. D. DePaola, T. Amthor, M. Weidemüller, S. Sevinçli, T. Pohl
Phys. Rev. Lett. 104, 173602 (2010)

Vinod Kumarappan's Group

Vinod's group is studying ultrafast processes in strong laser field aligned molecules.

Controlling the rotation of asymmetric top molecules by the combination of a long and a short laser pulse
Simon S. Viftrup, Vinod Kumarappan, Lotte Holmegaard, Christer Z. Bisgaard, Henrik Stapelfeldt, Maxim Artamonov, Edward Hamilton, Tamar Seideman
Phys. Rev. A 79, 023404 (2009)
Manipulating the Torsion of Molecules by Strong Laser Pulses
C. B. Madsen, L. B. Madsen, S. S. Viftrup, M. P. Johansson, T. B. Poulsen, L. Holmegaard, V. Kumarappan, K. A. Jørgensen, H. Stapelfeldt
Phys. Rev. Lett. 102, 073007 (2009)

Carlos Trallero's Group

Carlos is our newest faculty member and is looking into strong field molecular spectroscopy, higher-order harmonic generation, attosecond physics and coherent quantum control.

"Generation of isolated attosecond pulses in the far field by spatial filtering with an intense few-cycle mid-infrared laser"
Cheng Jin, Anh-Thu Le, Carlos A. Trallero-Herrero, C. D. Lin
Phys. Rev. A 84, 043411 (2011)
Probing collective multi-electron dynamics in xenon with high-harmonic spectroscopy
A. D. Shiner, B. E. Schmidt, C. Trallero-Herrero, H. J. Wörner, S. Patchkovskii, P. B. Corkum, J-C. Kieffer, F. Légaré, D. M. Villeneuve
Nature Physics 07, 464 (2011)

Brian Washburn's Group

Brian is finding ways to use nonlinear fiber optics and ultrafast fiber lasers for optical metrology and atomic physics.

C2H2 gas laser inside hollow-core photonic crystal fiber based on population inversion
Andrew M. Jones, A. V. Vasudevan Nampoothiri, Amarin Ratanavis, Rajesh Kadel, Natalie V. Wheeler, Francois Couny, Fetah Benabid, Wolfgang Rudolph, Brian R. Washburn, Kristan L. Corwin
CLEO/QELS Proceedings CTuU1, 1 (2010)
Phase-Stabilized 167 MHz Repetition Frequency Carbon Nanotube Fiber Laser Frequency Comb
Jinkang Lim, Kevin Knabe, Yishan Wang, Rodrigo Amezcua-Correa, François Couny, Philip S. Light, Fetah Benabid, Jonathan C. Knight, Kristan L. Corwin, Jeffrey W. Nicholson, Brian R. Washburn
CLEO/IQEC OSA Tech. Digest CTuK, 2 (2009)

Experiment Groups