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Dr. Jun Ye4:00 PM
February 2, 2007
Tech L211
Precise measurement and control of light-matter interactions
JILA, National Institute
of Standards and Technology
and University of Colorado | | Abstract: Sub-cycle phase coherence of an optical field can now be preserved over seconds. This capability has facilitated the merge between CW laser-based precision optical-frequency metrology and mode-locked laser-based ultrafast science, resulting in profound and unexpected progress in both fields. An optical frequency comb spanning the entire visible spectrum allows any optical frequency to be established at the Hz level stability and accuracy. Accurate phase connections among different parts of the electromagnetic spectrum have established optical atomic clocks and optical frequency synthesis. Combined with ultracold atoms, optical spectroscopy and frequency metrology at the highest level of precision and resolution are being accomplished. The parallel developments in the time domain have resulted in precise control of the pulse waveform in the sub-femtosecond regime. This has led to recent demonstrations of coherent synthesis of optical pulses from independent lasers, coherent control in nonlinear spectroscopy, coherent pulse addition without any optical gain, and generation of coherent frequency combs in the VUV spectral region. With this unified approach on time and frequency domain controls, one can now pursue simultaneously coherent control of quantum dynamics in the time domain and high precision measurements of matter structure in the frequency domain.
Biographical Sketch: Jun Ye received the Ph.D. degree from the University of Colorado, Boulder, in 1997. He was a R.A. Millikan Postdoctoral Fellow at the California Institute of Technology from 1997-1999. He has been a Fellow of JILA, the National Institute of Standards and Technology and the University of Colorado, since 2001. He has been a Fellow of NIST since 2004. He is also a Fellow of the American Physical Society and a Fellow of the Optical Society of America. His research interests include precision measurement, ultracold atoms and molecules, optical frequency metrology, and ultrafast science and quantum control. He has co-authored over 160 technical papers. Awards and honors include I. I. Rabi Prize from the American Physical Society, Carl Zeiss Research Award, William F. Meggers Award and Adolph Lomb Medal from the Optical Society of America, Arthur S. Flemming Award, Presidential Early Career Award for Scientists and Engineers, U.S. Commerce Department group Gold Medal, Friedrich Wilhem Bessel Award from Alexander von Humboldt Foundation, and Samuel Wesley Stratton Award from NIST. The research group web page is http://jilawww.colorado.edu/YeLabs |
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