Coherent light generators – Particular active media – Gas
Patent
1990-11-19
1991-09-10
Scott, Jr., Leon
Coherent light generators
Particular active media
Gas
372 3, H01S 322
Patent
active
050480421
ABSTRACT:
A methane Raman cell is provided with a catalytic composite comprising palladium on a titania substrate, which promotes the hydrogenation of gas products formed by the decomposition of methane from arcing, and thereby inhibits the reaction of these gas products to form deposits which adhere to the windows of the Raman cell. This Raman cell has greatly increased life. In an alternative embodiment, further improvements may be obtained by adding hydrogen dopant gas to the methane.
REFERENCES:
patent: 4327337 (1982-04-01), Liu
patent: 4751714 (1988-06-01), Chen
patent: 4816289 (1989-03-01), Komatsu et al.
Dewhirst Donald R.
Moser Thomas P.
Denson-Low W. K.
Hughes Aircraft Company
Jr. Leon Scott
Lachman Mary E.
Streeter W. J.
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