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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 9, Iss. 2 — Feb. 1, 1992
  • pp: 197–202

Continuous-wave infrared laser spectrometer based on difference frequency generation in AgGaS2 for high-resolution spectroscopy

P. Canarelli, Z. Benko, R. Curl, and F. K. Tittel  »View Author Affiliations

JOSA B, Vol. 9, Issue 2, pp. 197-202 (1992)

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A high-resolution cw spectrometer based on difference frequency generation (DFG) in a 20-mm-long AgGaS2 crystal pumped by two stabilized single-frequency cw dye–Ti:sapphire lasers is described. Experiments performed with a Rhodamine 6G and DCM dye laser combination pumped by a 20-W argon laser are reported. Informed radiation is generated from 7 to 9 μm with an ultranarrow linewidth (<0.5 MHz) and an output power 1 μW by making use of 90° type I phase matching. The performance of the DFG laser spectrometer is evaluated by using a portion of the ν2 band of NH3 near 1177 cm−1.

© 1992 Optical Society of America

Original Manuscript: May 7, 1991
Revised Manuscript: September 26, 1991
Published: February 1, 1992

P. Canarelli, Z. Benko, R. Curl, and F. K. Tittel, "Continuous-wave infrared laser spectrometer based on difference frequency generation in AgGaS2 for high-resolution spectroscopy," J. Opt. Soc. Am. B 9, 197-202 (1992)

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