Europhys. Lett.
Volume 66, Number 5, June 2004
Page(s) 661 - 666
Section Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics
Published online 01 May 2004
Europhys. Lett., 66 (5) , pp. 661-666 (2004)
DOI: 10.1209/epl/i2004-10022-0

Generation of subfemtosecond pulses with coherence modulation using high-order stimulated Raman scattering

J. Wu and H. Zeng

Key Laboratory of Optical and Magnetic Resonance Spectroscopy and Department of Physics, East China Normal University - Shanghai 200062, PRC

(Received 12 January 2004; accepted in final form 23 March 2004)

We suggest that subfemtosecond pulses can be generated by using high-order stimulated Raman scattering when a Raman transition is driven by three intense single-mode laser beams with two different modulation frequencies. An oscillatory strong Raman coherence is established by the modulated molecular modulation. Numeric simulations based on the first fundamental vibrational Raman transition of gaseous and solid deuterium indicate that subfemtosecond pulses can be generated by Raman excitations with above, below, or opposite Raman detunings.

42.65.Dr - Stimulated Raman scattering; CARS.
42.50.Gy - Effects of atomic coherence on propagation, absorption, and amplification of light; electromagnetically induced transparency and absorption.
32.80.Qk - Coherent control of atomic interactions with photons.

© EDP Sciences 2004