• Responsible for the overall viability of the laboratory.
• Responsible for coordinating the planning and the execution of the JRML experimental research program.
• Research interests:
  • Developing kinematically complete ion-atom collision experiments using recoil ion-electron momentum spectroscopy.
  • Momentum mapping of reaction products from photon induced ionization studied with synchrotron radiation and intense laser pulses.

Chii-Dong Lin , Associate Director for Theoretical Research,
University Distinguished Professor
CW230 : 785-532-1617 : cdlin@phys.ksu.edu : http://www.phys.ksu.edu/personal/cdlin
For current research update, click here.

• Responsible for coordinating the the JRML AMO theory research program.
• Research interests:
  • Attosecond physics
  • Laser-atom and laser-molecule interactions
  • Hyperspherical close-coupling theory
  • Ion-atom collisions and three-body scattering theories
  • Classification and visualization of correlations of multiply excited states of atoms.

• Responsible for overall operation of the laboratory accelerator systems.
• Schedules use of tandem/LINAC/LEICF accelerator systems.
• Supervises operation of JRML computer systems and electronics shop.
• Research interest:
  • Ionization and break-up of molecules by fast and slow highly-charged ions and by ultrashort intense laser pulses.

• Research interests:
  • Ionization and break-up of molecules by both fast and slow highly-charged ions.
  • Identifying and determining the lifetimes of metastable molecular states.
  • Imaging the dissociation and ionization of molecular ions by ultrashort intense laser pulses

• Research interests:
  • Ultrafast high intensity lasers
  • High field physics

• Research interests:
  • Optical frequency metrology using ultrafast lasers
  • Supercontinuum generation

Brett DePaola , Professor
CW333 : 785-532-1623 : depaola@phys.ksu.edu : http://www.phys.ksu.edu/personal/depaola
For current research update, click here.

• Research interests:
  • Electron capture from Rydberg targets using both high velocity and low velocity ions.
  • Studying binary encounter electrons as a means of obtaining Compton profiles of composite systems such as bucky balls and molecules.

Brett Esry , Associate Professor
CW329 : 785-532-1620 : esry@phys.ksu.edu : http://www.phys.ksu.edu/personal/esry/
For current research update, click here.

• Research interests:
  • Ultracold three-body collisions
  • Intense laser-matter interactions

Charles Fehrenbach, Assistant Research Professor
CW017 : 785-532-3461 : macf@phys.ksu.edu : http://www.phys.ksu.edu/personal/macf

• Responsible for the operation of Low-Energy Ion Collision Facilities.
• Responsible for user support and coordination.
• Coordinates machine shop jobs for the JRML.

• Research interest:
  • Studying inner-shell ionization using x-ray spectroscopy.

• Research interests:
  • Molecules in strong laser fields
  • Coulomb explosion imaging of molecular dynamics
  • Laser alignment of molecules in gas phase

• Research interests:
  • Study of single, double and multiwalled carbon nanotubes by electron time-of-flight methods using femtosecond pump-probe laser beams.

Uwe Thumm , Professor
CW212 : 785-532-1613 : thumm@phys.ksu.edu : http://www.phys.ksu.edu/personal/thumm
For current research update, click here.

• Research interests:
  • Electron transfer and emission in collisions of ions and atoms with clusters and surfaces.
  • Multiple capture and emission of electrons in interactions between highly charged ions and C₆₀ clusters, carbon nanotubes, metal and insulator surfaces.
  • Fragmentation mechanisms of small molecules in intense fs laser pulses
  • Image and surface states near nanostructured surfaces and carbon nanotubes
  • Laser-assisted collisions

Brian Washburn, Assistant Professor
CW036B : 785-532-2263 : washburn@phys.ksu.edu : http://www.phys.ksu.edu/personal/washburn/

• Research interests:
  • Nonlinear fiber optics
  • Optical frequency metrology
  • Computational physics
  • Quantum optics
  • Ultrafast spectroscopy

Theo Zouros , Adjunct Professor
tzouros@phys.ksu.edu : http://www.physics.uoc.gr/~tzouros/

• Research interests:
  • Ion-atom and ion-electron collisions
  • Auger electron spectroscopy
  • Physics of highly charged ions
  • Projectile-electron-Target-electron interactions
  • Ion surface interactions

Scott Chainey, Electronics Technologist
CW005 : 785-532-2659 : schainey@phys.ksu.edu

• Responsible for design, fabrication, and maintenance of specialized JRML electronics.

Bob Krause, Research Technologist
CW006 : 785-532-2660 : krause@phys.ksu.edu

• Responsible for negative ion source operation and maintenance.
• Responsible for tandem accelerator operation and maintenance.
• Responsible for operation and maintenance of support systems associated with the tandem accelerator.

Vince Needham, Assistant Scientist
CW028 : 785-532-2670 : vneedham@phys.ksu.edu : http://jrm.phys.ksu.edu/Vince/

• Data acquisition, system and control programming.
• Provides PC workstation, networking and Web support.
• Responsible for Linac resonator operation, conditioning and repair.

Al Rankin, Assistant Scientist
CW007 : 785-532-2654 : alrankin@phys.ksu.edu : http://www.a3skywarrior.com/alrankin.html

• Assists with operation and maintenance of the JRML liquid helium plant and associated cryogenic systems.
• Assists with set up and maintenance of high vacuum systems and beamlines.
• Responsible for specialized welding needs of high vacuum systems.

Carol Regehr, Assistant Scientist
CW106B : 785-532-6782 : cregehr@phys.ksu.edu

• Responsible for maintaining accounting records for the JRML.
• Assists staff in ordering equipment and supplies.
• Responsible for assisting lab director with JRML activities, records and grant documents.

Mike Wells, Research Technologist
CW004 : 785-532-2655 : mwells@phys.ksu.edu

• Responsible for operation and maintenance of the JRML liquid helium plant and associated cryogenic systems.
• Assists with set up and maintenance of high vacuum systems.
• Assists with maintenance of LINAC systems.

Zhangjin Chen, Research Associate
CW231 : 785-532-6823 : zjchen@phys.ksu.edu

• Theoretical AMO physics
• Working with CD Lin

Ximao Feng, Research Associate
CW124 : 785-532-2653 : feng@phys.ksu.edu : http://www.phys.ksu.edu/personal/feng

• Ultrafast pulse laser systems
• Working with Zenghu Chang

Anh Thu Le, Research Associate
CW229 : 785-532-1635 : atle@phys.ksu.edu : http://www.phys.ksu.edu/personal/atle/

• Theoretical AMO physics
• Working with CD Lin

Chengquan Li, Research Associate
CW124 : 785-532-1634 : cqli@phys.ksu.edu : http://www.phys.ksu.edu/personal/cqli/

• Ultrafast pulse laser systems
• Working with Zenghu Chang

Hiroki Mashiko, Research Associate
CW132 : 785-532-2657 : mashiko@phys.ksu.edu

• Ultrafast pulse laser systems
• Working with Zenghu Chang

Jarlath McKenna, Research Associate
CW305 : 785-532-2669 : jmckenna@phys.ksu.edu

• Ion-molecule collisions
• Working with Itzhik Ben-Itzhak

Toru Morishita, Visiting Researcher
CW231 : 785-532-6823 : toru@phys.ksu.edu ; http://www.phys.ksu.edu/personal/toru/

• AMO physics theory
• Working with CD Lin

Boyen Obreshkov, Research Associate
CW316 : 785-532-1642 : obreshko@phys.ksu.edu

• AMO physics theory
• Working with Uwe Thumm

Predrag Ranitovic, Visiting Scholar
CW302 : 785-532-2666 : predragr@phys.ksu.edu

• Intense laser-matter interactions
• Working with Lew Cocke

Karl Tillman, Research Associate
CW132 : 785-532-2657 : tillman@phys.ksu.edu

• Laser metrology
• Working with Kristan Corwin

Giorgi "Goga" Veshapidze, Research Associate
CW301 : 785-532-2665 : veshapa@phys.ksu.edu

• Collisions with trapped atoms
• Working with Brett DePaola

Rui-Hua Xie, Research Associate
CW229 : 785-532-1635 : rhxie@phys.ksu.edu : http://www.phys.ksu.edu/personal/rhxie/

• Theoretical AMO physics
• Working with Chii-Dong Lin

Fatima Anis, Graduate Research Assistant
CW316 : 785-532-1642 : fatima@phys.ksu.edu

• Major Professor: Brett Esry
• Atomic physics theory

Irina Bocharova, Graduate Research Assistant
CW021 : 785-532-2658 : irina2@phys.ksu.edu

• Major Professor: Igor Litvinyuk
• Photon-atom collisions

Ioannis Chatzakis, Graduate Research Assistant
CW132 : 785-532-2657 : ioannis@phys.ksu.edu

• Major Professor: Pat Richard
• Charge carrier dynamics & optical properties of carbon nanotubes

Brian Espino, Graduate Research Assistant
CW019 : 785-532-2650 : bnespino@phys.ksu.edu

• Major Professor: Charles Fehrenbach
• Atomic collision physics

Bishwanath Gaire, Graduate Research Assistant
CW305 : 785-532-2669 : bngaire@phys.ksu.edu

• Major Professor: Itzik Ben-Itzhak
• Molecular ions probed by ultrashort intense laser pulses

Shambhu Ghimire, Graduate Research Assistant
CW033 : 785-532-5768 : sghimire@phys.ksu.edu : http://www.phys.ksu.edu/personal/sghimire/

• Major Professor: Zenghu Chang
• Short-pulse lasers

Steven Gilbertson, Graduate Teaching Assistant
CW302 : 785-532-2666 : smg@phys.ksu.edu

• Major Professor: Zenghu Chang
• Lasers

Ben Gramkow, Graduate Research Assistant
CW302 : 785-532-2666 : bgramkow@phys.ksu.edu ; http://www.phys.ksu.edu/personal/bgramkow/

• Major Professor: Zenghu Chang
• Photon-atom collisions

Shuai Hu, Graduate Teaching Assistant
CW020 : 785-532-1643 : shuai@phys.ksu.edu

• Major Professor: Zenghu Chang
• Intense laser-matter interactions

Jianjun Hua, Graduate Research Assistant
CW020 : 785-532-1643 : jjhua@phys.ksu.edu

• Major Professor: Brett Esry
• Intense laser-matter interactions

Hyounguk Jang, Graduate Research Assistant
CW301 : 785-532-2665 : jang@phys.ksu.edu

• Major Professor: Brett DePaola
• Photon-atom collision physics

Nora Johnson, Graduate Teaching Assistant
CW302 : 785-532-2666 : ngjohnso@phys.ksu.edu

• Major Professor: Itzik Ben-Itzhak
• Molecular dissociation

Andrew Jones, Graduate Teaching Assistant
CW324 : 785-532-5987 : jonesam@phys.ksu.edu

• Major Professor: Kristan Corwin
• Laser metrology

Sabih Khan, Graduate Teaching Assistant
CW020 : 785-532-1643 : sabih@phys.ksu.edu

• Major Professor: Zenghu Chang
• Intense laser-matter interactions

Kevin Knabe, Graduate Research Assistant
CW324 : 785-532-5987 : kok6785@phys.ksu.edu

• Major Professor: Kristan Corwin
• Optical metrology

Jinkang Lim, Graduate Research Assistant
CW132 : 785-532-2657 : jklim@phys.ksu.edu

• Major Professor: Brian Washburn
• Optical metrology

Erin Lynch, Graduate Teaching Assistant
CW021 : 785-532-2658 : elynch@phys.ksu.edu

• Major Professor: Brett Esry
• Theoretical AMO physics

Maia Magrakvelidze, Graduate Teaching Assistant
CW316 : 785-532-1642 : maia@phys.ksu.edu

• Major Professor: Igor Litvinyuk
• Photon-atom collision physics

Chakra Maharjan, Graduate Research Assistant
CW302 : 785-532-2666 : chakra@phys.ksu.edu : http://www.phys.ksu.edu/personal/chakra/

• Major Professor: Lew Cocke
• Laser-atom interactions

Eric Moon, Graduate Research Assistant
CW033 : 785-532-5768 : moone@phys.ksu.edu

• Major Professor: Zenghu Chang
• Ultrafast lasers; Carrier-envelope phase stabilization

Chris Nakamura, Graduate Research Assistant
CW229 : 785-532-1635 : cnakamur@phys.ksu.edu

• Major Professor: Zenghu Chang
• Ultrafast lasers; Carrier-envelope phase stabilization

Thomas Niederhausen , Graduate Research Assistant
CW316 : 785-532-1642 : esdimax@phys.ksu.edu : http://www.phys.ksu.edu/personal/esdimax/

• Major Professor: Uwe Thumm
• Theoretical AMO physics

Dipanwita Ray, Graduate Research Assistant
CW132 : 785-532-2657 : dray@phys.ksu.edu

• Major Professor: Lew Cocke
• Recoil ion momentum spectroscopy

Max Sayler, Graduate Research Assistant
CW305 : 785-532-2669 : sayler@phys.ksu.edu : http://www.phys.ksu.edu/personal/sayler/

• Major Professor: Itzik Ben-Itzhak
• Molecular ions probed by ultrashort intense laser pulses

Mahendra Shakya, Graduate Research Assistant
CW033 : 785-532-5768 : mahendra@phys.ksu.edu : http://www.phys.ksu.edu/personal/mahendra/

• Major Professor: Zenghu Chang
• Short-pulse lasers

Rajesh Thapa, Graduate Research Assistant
CW302 : 785-532-2666 : rthapa@phys.ksu.edu

• Major Professor: Kristan Corwin
• Optical metrology

Marc Trachy, Graduate Teaching Assistant
CW301 : 785-532-2665 : mltrachy@phys.ksu.edu

• Major Professor: Brett DePaola
• Laser-Trapped Atoms

He Wang, Graduate Teaching Assistant
CW020 : 785-532-1643 : wanghe@phys.ksu.edu : http://www.phys.ksu.edu/personal/wanghe/

• Major Professor: Zenghu Chang
• Attosecond laser measurement in time domain

Yuyun Wang, Graduate Research Assistant
CW020 : 785-532-1642 : yuyunw@phys.ksu.edu

• Major Professor: Brett Esry
• Ultracold three-body collisions

Yi Wu, Graduate Teaching Assistant
CW020 : 785-532-1643 : wuyi@phys.ksu.edu

• Major Professor: Zenghu Chang
• Intense laser-matter interactions

Junliang Xu, Graduate Teaching Assistant
CW229 : 785-532-1635 : junliang@phys.ksu.edu

• Major Professor: CD Lin
• AMO physics theory