Raman Frequency Shifting in a CH4:H2:Ar mixture pumped by the fourth harmonic of a Nd:YAG Laser
Applied Optics, Vol. 37, Issue 30, pp. 7112-7115 (1998)
http://dx.doi.org/10.1364/AO.37.007112
Acrobat PDF (168 KB)
Abstract
Mixtures of methane, hydrogen, and argon (CH4:H2:Ar) were studied as UV Raman shifters for ozone differential absorption lidar application. They have higher photochemical stability than pure CH4 and the capability to produce, with high enough efficiency, either first CH4 Stokes or, simultaneously, CH4 and H2 first Stokes with equal energies. These mixtures can be used as an inexpensive replacement for D2 or a more stable substitute for pure CH4 in single-pass high-power Raman shifters.
© 1998 Optical Society of America
OCIS Codes
(010.3640) Atmospheric and oceanic optics : Lidar
(010.4950) Atmospheric and oceanic optics : Ozone
(010.7030) Atmospheric and oceanic optics : Troposphere
(140.3550) Lasers and laser optics : Lasers, Raman
(190.5650) Nonlinear optics : Raman effect
(280.1910) Remote sensing and sensors : DIAL, differential absorption lidar
Citation
Valentin Simeonov, Valentin Mitev, Hubert van den Bergh, and Bertrand Calpini, "Raman Frequency Shifting in a CH4:H2:Ar mixture pumped by the fourth harmonic of a Nd:YAG Laser," Appl. Opt. 37, 7112-7115 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-30-7112
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