Abstract

Fifteen new, Raman far-infrared (FIR) laser emission lines in CH₃F have been excited by optically pumping up to 24 GHz off resonance with high-intensity CO₂ TEA laser radiation (up to 20 MW/cm²). Most of these new lines are produced with high quantum efficiency in a waveguide laser system. High-intensity laser pumping could also be applied to other gases to produce many new, efficient lines. The present results suggest that a nearly continuously tunable source of FIR radiation in the 175–500-μm range could be obtained through Raman laser emission in CH₃F using a tunable, multiatmospheric CO₂ pump laser.

© 1979 Optical Society of America

High performance at new FIR wavelengths from optically pumped CH₂F₂

E. J. Danielewicz, T. A. Galantowicz, F. B. Foote, R. D. Reel, and D. T. Hodges
Opt. Lett. 4(9) 280-282 (1979)

Additional cw FIR laser lines from optically pumped CH₂F₂

Artemio Scalabrin and Kenneth M. Evenson
Opt. Lett. 4(9) 277-279 (1979)

Continuously tunable CH₃F Raman far-infrared laser

Pierre Mathieu and Jerald R. Izatt
Opt. Lett. 6(8) 369-371 (1981)

Far-infrared CH₃F Stark laser

Massimo Inguscio, Franco Strumia, K. M. Evenson, D. A. Jennings, A. Scalabrin, and S. R. Stein
Opt. Lett. 4(1) 9-11 (1979)

Efficient far-infared laser lines from CH₂F₂ pumped by a continuous-wave waveguide CO₂ laser

G. Merkle and J. Heppner
Opt. Lett. 9(12) 542-543 (1984)