Harnessing Attosecond Science in the Quest for Coherent X-rays.
Science 317, 775 (2007)

Group Leaders
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Prof. Henry Kapteyn |
JILA, University of Colorado at Boulder and NIST
Office: A703
Office Phone: 303-492-8198
Fax: 303-492-5235
Email: kapteyn@jila.colorado.edu
Curriculum Vitae
Short Biography: Dr. Henry C. Kapteyn (download vita) has been a Professor at the Department of Physics and a Fellow of JILA, at the University of Colorado since 1999. Previously, he was an Associate Professor in the Electrical Engineering and Computer Science (EECS) Department at the University of Michigan, and an Assistant and then Associate Professor of Physics at Washington State University. He received his Ph.D. in Physics from the University of California at Berkeley in 1989, in the field of x-ray and short-wavelength laser physics. His work at WSU, done in collaboration with Prof. Margaret Murnane, resulted in the development of a new generation of lasers which make it straightforward to produce light pulse of less than ten femtoseconds duration. At Michigan, he continued this research in demonstrating novel techniques for generation short-duration light pulses in the deep-ultraviolet and soft x-ray regions of the spectrum. He currently is applying this technology in studies of dynamic processes in chemical and material systems. Prof. Kapteyn is the recipient of a National Science Foundation Young Investigator Award in 1992, a Sloan Foundation fellowship, and the Optical Society of America's 1993 Adolph Lomb Medal. He is a Fellow of the Optical Society of America, and a member of the American Physical Society and the SPIE. |
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Prof. Margaret Murnane (University Distinguished Professor) |
JILA, University of Colorado at Boulder and NIST
Office: A704
Office Phone: 303-492-7839
Fax: 303-492-5235
Email: murnane@jila.colorado.edu
Curriculum Vitae
Short Biography: Dr. Margaret Murnane (download vita) is a Fellow at JILA and a member of the Department of Physics and Electrical and Computer Engineering at the University of Colorado. She received her B.S and M.S. degrees from University College Cork, Ireland, and her Ph.D. degree in physics from the University of California at Berkeley in 1989, and joined the faculty of physics at Washington State University in 1990. In 1996, Professor Murnane moved to the University of Michigan, and in 1999 she moved to the University of Colorado. She runs a joint research group and a small laser company with her husband, Prof. Henry Kapteyn. Prof. Murnane's research interests have been in ultrafast optical and x-ray science. Prof. Murnane is a Fellow of the American Physical Society and the Optical Society of America. In 1997 she was awarded the Maria Goeppert-Mayer Award of the American Physical Society, in 2000 she was named a John D. and Catherine T. MacArthur Fellow, in 2004 she was elected to the National Academy of Sciences, and in 2006 she was elected a Fellow of the American Academy of Arts and Sciences. |
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Postdoctoral Researchers
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Dr. Oren Cohen |
JILA, University of Colorado at Boulder and NIST
Office: S166
Office Phone: 303 492-4876
Fax: 303-492-5235
Email: coheno@jilau1.colorado.edu
Web page: http://jilawww.colorado.edu/~coheno
Curriculum Vitae
Short Biography: Dr. Oren Cohen joined the group in September 2004. He received his Master and Ph.D. from the Technion, Israel Institute of Technology, in 1999 and 2004, respectively. During his Masters Oren studied semiconductor quantum structures while in his Ph.D. he investigated optical spatial solitons. His current interest include high harmonic generation in modulated hollow fibers and EUV imaging. |
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Dr. Wen Li |
JILA, University of Colorado at Boulder and NIST
Office: S166
Office Phone: 303-492-2942
Lab: C1B15
Lab Phone: 303-735-1594
Fax: 303-492-5235
Email: wli@jila.colorado.edu
Curriculum Vitae
Short Biography: Dr. Wen Li was born in Yongjia, a small town in Zhejiang province of China. He graduated with honor as a B.S. from Beijing University, China. In May of 2006, he received his Ph. D. degree of chemistry from Stony Brook University. In his Ph. D. research, he studied the reaction dynamics of photon-matter and matter-matter interactions using high resolution velocity mapping technique. He joined KM group in Aug. 2006 and is currently working on ultrafast molecular dynamics probed with high harmonic generation (HHG) and cold target recoil ion momentum spectroscopy (COLTRIMS). |
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Ph.D. Students
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Isabell Thomann |
JILA, University of Colorado at Boulder and NIST
Office: S166
Office Phone: 303-492-2942
Lab: C1B15
Lab Phone: 303-735-1594
Fax: 303-492-5235
Email: isabell.thomann@colorado.edu
Curriculum Vitae
Short Biography: Isabell Thomann is a graduate student from Speyer, Germany. She studied in Kaiserslautern, Germany, and Zurich, Switzerland, where she received her diploma in physics in 2001. After working as a research assistant at NIST on a Cr:Forsterite laser for absolute frequency measurements in the telecommunications region, she joined the KM group in 2003. Her current interest is the phase-stabilization of high-power fs pulses for the generation of as pulses. She very much enjoys the beautiful mountains and the wildlife around Boulder. |
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Daisy Raymondson |
JILA, University of Colorado at Boulder and NIST
Office: A309
Office Phone: 303-492-7803
Lab B1B19
Lab Phone: 303-492-7764
Fax: 303-492-5235
Email: daisy.raymondson@colorado.edu
Curriculum Vitae
Short Biography: Daisy received her B.S. in physics and mathematics from UC Davis in 2001.
She worked as a research assistant with the quantum information group at Los Alamos
National Laboratory for one year and joined the KM group in the fall of 2002. She is
currently working on EUV imaging techniques with Ariel Paul and Richard Sandberg, and
building a high-repetition-rate laser amplifier. In her spare time Daisy enjoys fighting
crime on the streets under cover of darkness. |
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Tenio Popmintchev |
JILA, University of Colorado at Boulder and NIST
Office: S168
Office Phone: 303-735-4528
Lab: B1B15
Lab Phone: 303-492-7873
Cell Phone: 303-859-3925
Fax: 303-492-5235
Email: popmintchev@jila.colorado.edu
Web page: http://jilawww.colorado.edu/~popmintc
Curriculum Vitae
Short Biography: Tenio graduated with Ms.S. in physics, specialization laser physics and quantum electronics, from University of Sofia, Bulgaria in 2002. He is currently working on increasing the flux of high harmonic generation from ions in plasma waveguide using all-optical quasi-phase matching techniques, as well as, on extending the phase matching of high harmonic generation to extremely high photon energies using mid-infrared driving light. |
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Luis Miaja-Avila |
JILA, University of Colorado at Boulder and NIST
Office: S168
Office Phone: 303-735-4528
Lab: B1B19
Lab Phone: 303-492-7764
Fax: 303-492-5235
Email: miajaavi@colorado.edu
Curriculum Vitae
Short Biography: Luis graduated form ITESM (Monterrey Institute of Technology), Monterrey, Mexico in 2002 with a degree in Engineering Physics. He joined the KM group in the summer of 2003. Currently Luis is working with Tim Lei studying molecular dynamics on metal surfaces. |
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Mark Siemens |
JILA, University of Colorado at Boulder and NIST
Office: S155
Office Phone: 303-492-1638
Lab: B1B19
Lab Phone: 303-492-7764
Fax: 303-492-5235
Email: siemens@jila.colorado.edu
Curriculum Vitae
Short Biography: Mark graduated from the Colorado School of Mines in 2003 with a B.S. in Engineering Physics. He started graduate school at CU and joined the KM group in 2003 as well. He enjoys watching Denver Broncos games and MacGyver reruns. |
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Xibin Zhou |
JILA, University of Colorado at Boulder and NIST
Office: S168
Office Phone: 303-735-4528
Lab: B1B31
Lab Phone: 303-492-7766
Fax: 303-492-5235
Email: xibin.zhou@colorado.edu
Web page: http://zhouxibin.googlepages.com/
Curriculum Vitae
Short Biography: Xibin Zhou joined the KM group as a graduate student in May 2004. He is from the east coast of China and received his B.S. degree in Physics from Universtiy of Science and Technology of China (USTC) in 2003. Now he is working on the generating, shaping and measuring of ultrashort laser pulses. |
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Richard Sandberg |
JILA, University of Colorado at Boulder and NIST
Office: S168
Office Phone: 303-735-4528
Lab: B1B19
LabPhone: 303-492-7764
Fax: 303-492-5235
Email: sandberr@colorado.edu
Curriculum Vitae
Short Biography: Richard grew up in Loveland, Colorado. After graduating from high school, he spent two years in Ecuador as a missionary. He got his BS in physics from Brigham Young University and started his graduate work in physics at CU in August 2004. At BYU, he studied the optical properties of uranium and thorium as materials for UV and soft X-ray mirrors. He is married to Deanne Saunders and they have a little girl, Karadyn, and they are expecting another girl in July, 2006. |
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Robynne Hooper |
JILA, University of Colorado at Boulder and NIST
Office:
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Lab: B1B31
Lab Phone: 303-492-7766
Fax: 303-492-5235
Email: robynne.hooper@colorado.edu
Curriculum Vitae
Short Biography: Robynne graduated from the University of Texas at Austin in 2005 receiving a BS in physics. As an undergraduate she studied stimulated Raman scattering in hydrogen. She joined the KM group in 2006. |
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Qing Li |
JILA, University of Colorado at Boulder and NIST
Office: S168
Office Phone: 303-735-4528
Lab: B1B19
Lab Phone: 303-492-7764
Fax: 303-492-5235
Email: qing.li@colorado.edu
Curriculum Vitae
Short Biography: Qing received her B.S. in physics from USTC (University of Science and Technology of China), China in 2005. She joined the KM group in the summer of 2006. Qing enjoys this peaceful and beautiful city of Boulder. |
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Chan La-o-vorakiat |
JILA, University of Colorado at Boulder and NIST
Office:
Office Phone:
Lab: B1B19
Lab Phone: 303-492-7764
Fax: 303-492-5235
Email: chan.la-o-vorakiat@colorado.edu
Curriculum Vitae
Short Biography: Chan La-o-vorakiat was born in Thailand, which is the same country in which he received
the B.S. in physics from Mahidol University, Bangkok.
He started the grad student life in spring 2007 and have been in the group since the
summer of 2007. |
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Jing Yin |
JILA, University of Colorado at Boulder and NIST
Office: S168
Office Phone: 303-735-4528
Lab: B1B19
Lab Phone: 303-492-7764
Fax: 303-492-5235
Email: jing.yin@colorado.edu
Curriculum Vitae
Short Biography: Jing Yin is a graduate from Hefei, China. She got her B.S. from USTC
(Univ. of Sci.&Tech. of China, an unforgettable place) in 2006, and joined the KM group in
the summer of 2007. Jing is very happy to enjoy the beautiful science as well as the
beautiful mountains in Boulder. |
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Ming-Chang Chen |
JILA, University of Colorado at Boulder and NIST
Office: S168
Office Phone: 303-735-4528
Lab: B1B15
Lab Phone: 303-492-7873
Cell Phone: 720-341-6046
Fax: 303-492-5235
Email: mingchang@jila.colorado.edu
Curriculum Vitae
Short Biography: Ming-Chan received his B.S. in Physics from NTHU (National Tsing Hua University, Taiwan) and his M.S. in Electro-Optical Engineering from NCTU (National Chiao Tung University). He joined the KM group as a Ph.D graduate student in 2007. He is interested in pulse measuring, shaping and high harmonic generation from ions in capillary discharge using all-optical phase matching techniques. He is from a very warm and humid city, Kaohsiung, Taiwan. The weather there is totally different from Boulder. |
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Research Assistants
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Rachael Tearle |
JILA, University of Colorado at Boulder and NIST
Office: A705
Office Phone: 303-492-6763
Fax: 303-492-5235
Email: rachael@colorado.edu
Curriculum Vitae
Short Biography: Rachael works as an assistant to Prof. Margaret Murnane and Prof. Henry Kapteyn. She received her Bacherlor of Arts and Bacherlor of Science degrees from the University of Auckland in 1997. Rachael is from New Zealand and is here with her husband, who completed his doctorate in Applied Mathematics. They recently had a daughter (in Oct 2005). |
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Undergraduate and High School Students
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Emily Gregonis |
JILA, University of Colorado at Boulder and NIST
Lab: C1B15
Lab Phone: 303-735-1594
Fax: 303-492-5235
Email:
Curriculum Vitae
Short Biography: Emily Gregonis has been working with the KM group as an undergraduate research
assistant since September 2006. She is currently studying physics and
linguistics at CU. In her free time she enjoys road cycling, reading, and
hiking, along with playing rugby on the CU women's club team. |
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Adrienne Van Allen |
JILA, University of Colorado at Boulder and NIST
Lab: B1B15
Lab Phone: 303-492-7873
Fax: 303-492-5235
Email:
Curriculum Vitae
Short Biography: Adrienne was born and raised in Littleton, Colorado. As a high school student, she is very
excited to be working in laser research. She will graduate high school in 2008 and plans to
study physics in college. Adrienne joined the KM group in 2006. |
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Alison Ferris |
JILA, University of Colorado at Boulder and NIST
Lab: B1B19
Lab Phone: 303-492-7764
Fax: 303-492-5235
Email: alison.ferris@yahoo.com
Curriculum Vitae
Short Biography: Alison joined the KM group in the summer of 2007. Although Alison is currently a senior at Fairview High School in Boulder, she plans on studying physics or engineering as an undergraduate. In addition to burning holes with lasers, Alison enjoys playing ultimate frisbee and other outdoor activities. |
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Visiting Scientists
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Prof. Ivan Christov |
University of Sofia, JILA, University of Colorado at Boulder and NIST
Office:
Office Phone:
Fax: 303-492-5235
Email: christov@jila.colorado.edu
Web page: http://www.phys.uni-sofia.bg/~ipc
Curriculum Vitae
Short Biography: Dr. Ivan P. Christov (download vita) is a Professor at the Physics Department, University of Sofia, Bulgaria.
He received his M.S. and Ph.D. degrees from the University of Sofia, in 1980 and 1986 respectively. Since 1987 he has been with the Institute of Laser Physics, University of Sofia where he was a Director of the Institute for the period 1993-2000. During 1991-1992 Prof. Christov was a visiting scientist at the Max-Planck Institute for Quantum Optics, Garching, Germany, with an Alexander von Humboldt fellowship. Prof. Christov's research has been directed to development of advanced methods for generation and amplification of ultrashort coherent pulses in the visible and UV spectral domains. He currently is developing theoretical models to better understand light-matter interaction in attosecond time scale. Prof. Chrsitov is a Fellow of the Optical Society of America. |
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The prospects for coherent sources at very
short wavelengths - even possibly in the hard-x-ray
region of the spectrum - have brightened with the ability
to manipulate electron dynamics on attosecond time scales.
Nature Physics 3, 270 (2007); LFW, May 2007
The attosecond recollision of an
electron plucked from a molecule during
the process of high harmonic generation can be
used as a very sensitive probe of intramolecular dynamics.
PNAS 103, 13279 (2006); OPN, Dec. 2006
Probing Molecular Break Ups.
Science 317, 1374 (2007);
Nature Photonics, Vol. 1, pp609 (2007)
Extending attosecond science to surfaces.
PRL 97, 113604 (2006);
PRF, Sept. 2006; OPN, Dec. 2006
Generating coherent, ultrafast, x-ray
beams for applications in science and technology.
OPN, Nov. 2006
Generating high harmonics from ions
in a capillary discharge plasma waveguide.
PRL 96, 203001 (2006); OPN, Dec. 2006
Our group developed the first cryogenically-cooled Ti:sapphire
amplifier designs. Cryo-cooling of the crystal extends high-power
ultrafast pulses to very high repetition rates, for application
experiments in imaging and materials and chemical spectroscopy.
LFW, Oct. 2005