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Thursday,
March 8, 2012, 3:30 p.m.
in Meinel 307
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Speaker: |
Erich P. Ippen
Elihu Thomson Professor of Electrical Engineering and Professor
of Physics, Massachusetts Institute of Technology |
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Title: |
"Clocks, Combs and OAWG" |
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Abstract: |
Advances in femtosecond lasers that have made it possible to
generate pulses with durations on the order of one optical cycle
have also made it possible to control the phase of the
underlying electric field waveforms. This new capability is in
turn leading to more accurate clocks and to greater precision in
spectroscopy by creating broadband frequency combs. Further, by
spatially resolving and rapidly modulating the many individual
comb frequencies, one can generate truly arbitrary
optical-frequency electric-field waveforms. This talk will
describe advances toward these goals based on Ti:sapphire and
fiber laser technologies to cover the wavelength range of
2µm–500nm. |
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Bio: |
Erich P. Ippen received his Ph.D. from the University of
California, Berkeley, in 1968 and worked at Bell Labs in
Holmdel, N.J., from 1968 to 1980 before joining the faculty of
MIT where he is now Elihu Thomson Professor of Electrical
Engineering and professor of physics. He has received major
awards from IEEE, the Optical Society (OSA), the American
Physical Society and SPIE; and he is a member of the National
Academy of Sciences, the National Academy of Engineering and the
American Academy of Arts and Sciences. His current research
interests include femtosecond optical clock and arbitrary
waveform technologies, ultrashort-pulse fiber devices, ultrafast
studies of materials and devices, and nanophotonics. |
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