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Proceedings Paper

Optical fiber-based wave-mixing probe
Author(s): Jon A. Nunes; Fritz K. Mickadeit; Helen Kemp; William M. Tong
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Paper Abstract

A fiber-based wave-mixing probe is presented as a simple spectroscopic measurement tool with minimum optical alignment requirements for trace-concentration analytes. For a multi-photon nonlinear laser-induced grating method to become widely accessible, the optical setup must be compact, easy to align and portable. We demonstrate a significant improvement in the forward-scattering (self-diffraction) wave-mixing optical setup using optical fibers for both laser input and signal output interfaces. There is considerable flexibility inherent in the design, since the wave-mixing probe can be used in multiple configurations. Wave-mixing spectroscopy is presented as an effective and sensitive analytical method for trace analysis, offering advantages such as detection in very small sample volumes, remote and in-situ analyses, and convenient and efficient alignment enhancements obtained by the use of optical fibers.

Paper Details

Date Published: 7 May 1997
PDF: 5 pages
Proc. SPIE 2980, Advances in Fluorescence Sensing Technology III, (7 May 1997); doi: 10.1117/12.273548
Show Author Affiliations
Jon A. Nunes, San Diego State Univ. (United States)
Fritz K. Mickadeit, San Diego State Univ. (United States)
Helen Kemp, San Diego State Univ. (United States)
William M. Tong, San Diego State Univ. (United States)

Published in SPIE Proceedings Vol. 2980:
Advances in Fluorescence Sensing Technology III
Richard B. Thompson, Editor(s)

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