Abstract

A source of nanosecond IR pulses tunable from 2.8 to 16 μm (3500 to 630 cm⁻¹) is obtained by stimulated electronic Raman scattering (SERS) on the cesium 6s−5d transition. Reliable rhodamine and DCM dye-laser pulses are frequency shifted with up to 10% quantum conversion efficiency to obtain up to 2 mJ of IR pulse energy, a 5–25× improvement in energy over previous SERS infrared generation. The tuning curve structure and unwanted amplified spontaneous emission lines are also substantially reduced.

© 1987 Optical Society of America

Generation of widely tunable nanosecond pulses in the vibrational infrared by stimulated Raman scattering from the cesium 6s–5d transition

A. L. Harris, J. K. Brown, M. Berg, and C. B. Harris
Opt. Lett. 9(2) 47-49 (1984)

Generation of tunable picosecond pulses in the vibrational infrared by stimulated electronic Raman scattering of rhodamine-dye-laser pulses from the 6s–5d cesium transition

M. Berg, A. L. Harris, J. K. Brown, and C. B. Harris
Opt. Lett. 9(2) 50-52 (1984)

Nanosecond infrared absorption spectrometer

Mark A. Young and George C. Pimentel
Appl. Opt. 28(20) 4270-4278 (1989)

Stimulated electronic Raman scattering in barium vapor

R. D. Verma, S. M. Jaywant, and Z. Iqbal
J. Opt. Soc. Am. B 2(3) 403-406 (1985)

Raman shifting of Nd:YAG laser radiation in methane: an efficient method to generate 3-μm radiation for medical uses

Claudia Guntermann, V. Schulz-von der Gathen, and H. F. Döbele
Appl. Opt. 28(1) 135-138 (1989)