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7 May 1997 Optical fiber-based wave-mixing probe
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Proceedings Volume 2980, Advances in Fluorescence Sensing Technology III; (1997)
Event: BiOS '97, Part of Photonics West, 1997, San Jose, CA, United States
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.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jon A. Nunes, Fritz K. Mickadeit, Helen Kemp, and William M. Tong "Optical fiber-based wave-mixing probe", Proc. SPIE 2980, Advances in Fluorescence Sensing Technology III, (7 May 1997);

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