Optical fiber-based wave-mixing probe

Jon A. Nunes; Fritz K. Mickadeit; Helen Kemp; William M. Tong

doi:10.1117/12.273548

7 May 1997 Optical fiber-based wave-mixing probe

Jon A. Nunes, Fritz K. Mickadeit, Helen Kemp, William M. Tong

Proceedings Volume 2980, Advances in Fluorescence Sensing Technology III; (1997) https://doi.org/10.1117/12.273548
Event: BiOS '97, Part of Photonics West, 1997, San Jose, CA, United States

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.

Citation Download Citation

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); https://doi.org/10.1117/12.273548

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