Our Team


Advisor



    "El Guapo"
Professor Linn Van Woerkom

B.S., University of Southern California, 1982
M.A., University of Southern California, 1984
Ph.D., University of Southern California, 1987


Professor Van Woerkom is the head of an Atomic, Molecular, and Optics (AMO) group at the Ohio State University in Columbus, OH. His group studies ultra fast, high intensity laser/matter interactions.


Post Docs



    "Ninja"
Enam Chowdhury

B.A., Wabash College, Indiana, 1995
M.S., University of Delaware, 1999
Ph.D., University of Delaware, 2004


Enam is a post doctoral researcher working with both the Rick Freeman Group and the LVW group. Enam brings expert knowledge in the field of ultra intense field ionization and techniques in laser design.


Graduate Students



  "CyberPatch"
Patrick Randerson

B.S., Carnegie Mellon University, 1999
M.S., The Ohio State University, 2002


Pat is a graduate student, currently attempting to observe fluorescence of biological systems using time resolved photon counting.


      "Rap"
Richard Patterson

B.S., Florida State University, 2000

Richard is studying the Above-Threshold Ionization of Magnesium using Time-of-Flight techniques. He is also working on using software and hardware to assign each particle detected to the corresponding laser pulse intensity.


      "Distruction"
Dustin Offermann

B.S., Seattle University, 2002

Dustin is a graduate currently working on the design and construction of a 10Hz, > 10^19 W/cm^2 laser system. With this laser, he intends to conduct experiments in the fields of high intensity mater interactions and plasma physics in collaboration with the Rick Freeman Group.


Graduate Students in The Freeman Group



  ""
Kerry Highbarger

B.S., ______________________________________, _______

Kerry is a graduate student working for Richard Freeman.


      ""
Kerry Krauter

B.S., ______________________________________, _______

Kerry is a graduate student working for Richard Freeman.


      ""
Rebecca Weber

B.S., The Ohio State University, 2004

Becky is a graduate student working for Richard Freeman.


Undergraduate Student




"Burger"
Tom Weisgarber

Undergraduate,  The Ohio State University

Tom is an undergraduate who is currently working in collaboration with the Rick Freeman group to design and build a 10Hz, >10^19 W/cm^2 laser system. He is also working to design the reaction chambers with which to study high intensity reactions and plasma physics.



"Chico"
Matthew Maeder

Undergraduate,  The Ohio State University

Matt is an undergraduate who is currently studying concepts in pulse compression, and attempting to construct an optical system which will take us from 120fs at 800nm to less 10fs using Self Phase Modulation (SPM) in hollow core fibers.



"Head Phones"
Tom Colvin

Undergraduate,  The Ohio State University

Tom is an undergraduate member of the Rick Freeman group studying the design of lasers and is currently helping to construct the 10Hz, >10^19 W/cm^2 laser to be used in future experiments.


Past Students



  "Norbubu"
James Norby

Ph.D., Wyoming University, 1995

While working in the Van Woerkom Group, Dr. James Norby utilized a multi-layer Ray mirror to image soft X-rays from plasmas. Currently, Dr. Norby is a custom laser designer for Continuum.


  "Pedro"
Peter Hansch

Vordiplom, Bonn University, 1992
M.S., The Ohio State University, 1995
MBA, The Ohio State University, 1997
Ph.D., The Ohio State University, 1997



While with the Van Woerkom Group, Dr. Peter Hansch developed and studied the latest method of ultra fast, high intensity spectroscopy, Intensity Selective Scanning (ISS). Dr. Hansch currently owns and manages his own company, Executive Graphics.


  "Sonbo"
Son Evans

B.A., Berea College, 1990
M.S., The Ohio State University, 1994
Ph.D., The Ohio State University, 1997


While with the Van Woerkom Group, Dr. Son Evans studied High Order Harmonic Generation (HOHG) in both atoms and molecules using ultra short, high intensity light pulses. Currently Dr. Evans is a laser engineer at Continuum.


  "Nandor"
Mark Nandor

B.S., Harvey Mudd College, 1994
M.S., The Ohio State University, 1997
Ph.D., The Ohio State University, 1999



While with the Van Woerkom Group, Dr. Nandor obtained high resolution (in kinetic energy and intensity) argon photoelectron spectra, and compared these to single electron argon calculations developed by Dr. Harm Geert Muller, of FOM. Currently, he is teaching mathematics at The Wellington School.


  "Bullfrog"
Ryan Barnett

B.S., The Ohio State University, 2000

While with the Van Woerkom Group as an undergraduate, Ryan Barnett studied Frequency Resolved Optical Gating (FROG) and the photoelectron spectra of argon with super high intensity light pulses.  Currently, he is pursuing a Ph.D. in physics at Harvard University.


    "Kat"
Katharina Christandl

Vordiplom, Bonn University, 1998
M.S., The Ohio State University, 2000


While with the Van Woerkom Group, Kat developed a grating-stabilized tunable diode laser system that was used in conjunction with a mode-locked Ti:Sapphire laser for manipulation and control of atomic transitions in rubidium atoms.  Currently, she is with the Lafyatis group studying the cooling and trapping of atoms.


  "Tater"
Matthew Whitaker

B.S., Bridgewater College, 1999
M.S., The Ohio State University, 2001


While with the Van Woerkom Group, Matt developed a novel technique for the spectral and temporal characterization of short laser pulses in the 1 to 2 micron wavelength range.  Currently, he is a Laboratory Technician at Wright Patterson Air Force Base, contracted by Anteon Corporation.


      "Sooz"
Susan Randerson

B.M.E., The Ohio State University, 2002

While with the Van Woerkom Group, Susan worked as an admistrative assistant and house mother.  Currently she is the program coordinator for the K-12 science education program run by the physics department of OSU and funded by the NSF.


   "Tink"
James Campbell

B.S., The Ohio State University, 2002

While with the Van Woerkom Group, James studied the planning, design and construction of various electronic and optical systems.


  "Bulldog"
Glen Gillen

B.S., Denison University, 1994
M.S., Miami University, 1996
M.A.T., Miami University, 1997
M.S., The Ohio State University, 2001
Ph.D., The Ohio State University, 2002


While with the Van Woerkom Group, Dr. Glen Gillen studied the photoionization of magnesium atoms through the analysis of ion yields and photoelectron spectroscopy for various laser field intensities, ellipticities, carrier frequencies and angular orientations.  Currently, he is an Electro-Optic Engineer at Wright Patterson Air Force Base, contracted by Anteon Corporation.


    "Moon"
Mark Walker

B.S., Mount Union College, 1993
M.S., The Ohio State University, 1998


Mark is the senior graduate student, currently  studying photoelectron spetra and ion yields of diatomic molecules.


 "Shalini"
Shalini Sitaraman

B.S., St. Xavier's College, 1998
M.S., University of Bombay, 2000


Shalini is graduate student that has recently joined the Van Woerkom Group and is studying the fluorescence of biological systems.


 "Justin"
Justin Cantley

Undergrad, Haverford College
REU, The Ohio State University, 2004


While with the Van Woerkom Group, Justin worked to automate data collection in an effort to more accurately measure the intensity of each laser pulse.


Page created by LVW Group. Last updated August 25, 2004.