TITLE

Subfemtosecond pulse generation by nonadiabatic molecular modulation

AUTHOR(S)
Jian Wu; Heping Zeng
PUB. DATE
September 2003
SOURCE
Applied Physics Letters;9/15/2003, Vol. 83 Issue 11, p2127
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We suggest a technique to generate subfemtosecond pulse train in a Raman generator driven by three sufficiently intense single-mode laser beams whose carrier frequencies are tuned off the Raman resonance with two different two-photon detunings. The Raman interaction establishes a molecular modulation through a nonadiabatic process. The simulation based on the first fundamental vibrational Raman transition of solid hydrogen indicates that subfemtosecond pulse train can be generated when the signs of the two-photon detunings are opposite. This opens an experimentally feasible way to observe enhanced generation of broadband Raman sidebands as well as compression of the phase-locked Raman sidebands into subfemtosecond pulse trains in the same Raman media with above- and below-resonance Raman excitations. © 2003 American Institute of Physics.
ACCESSION #
10774646

 

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