Title

Frequency-Tunable Uv Laser System For Biological And Chemical Detection

Abstract

An efficient, compact, tunable ultraviolet laser system has been constructed by frequency tripling a Q-switched, tunable near-infrared Cr:LiSAF laser source. The nonlinear conversion from the fundamental to the third harmonic was accomplished through second harmonic generation in lithium triborate (LBO) followed by sum frequency mixing of the fundamental and the second harmonic in beta-barium borate (BBO). Third harmonic output with this combination of nonlinear crystals has yielded 5 mJ of energy at 280 nm with an overall conversion efficiency of 7%. The Cr:LiSAF master oscillator has been modeled in detail to optimize performance. System specifications of tuning range, linewidth, output energy, temporal behavior, and repetition rate were determined by the end use application as a UV excitation source for a chemical and biological stand-off detection system.

Publication Date

1-1-1996

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

2763

Number of Pages

78-84

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

0029726552 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0029726552

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