Tunable 16-micron coherent source including parahydrogen Raman t

Details Tunable 16-micron coherent source including parahydrogen Raman t Tunable 16-micron coherent source including parahydrogen Raman t

1978-12-29

1981-07-14

Nelms, David C.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Multiaperture

307424, H03F 700

Patent

active

042789028

ABSTRACT:
A coherent tunable narrow band IR source in the vicinity of 16 .mu.m is achieved by four-wave parametric mixing in parahydrogen. A pair of colinear laser beams, one from a narrow band CO.sub.2 laser, and a second from a multiline laser with output of wave number significantly below 14,400 cm..sup.-1, is focused in a parahydrogen containing cell. The multi-line laser beam drives a Raman process in the cell. The narrow band CO.sub.2 input beam mixes with this driver beam and the Stokes wave resulting from the Raman process to produce a 16 .mu.m output beam. Tuning of the CO.sub.2 laser allows tuning of the 16 .mu.m radiation emitted by the parahydrogen cell.

REFERENCES:
Loy et al., "Applied Physics Letters", Apr. 15, 1977, pp. 415-417.
Sorokin et al., "IEEE J. of Quantum Electronics", Oct. 1977, pp. 871-875.

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