Sum- and difference-frequency mixing are used to extend the range of high-speed diode-laser-based absorption sensors to ultraviolet and mid-infrared wavelengths. Measurement bandwidths up to 20 kHz are demonstrated in laboratory flames and model combustors.
© 2006 Optical Society of America
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.0300) Spectroscopy : Spectroscopy
(300.1030) Spectroscopy : Absorption
T. R. Meyer, S. Roy, T. N. Anderson, R. P. Lucht, R. Barron-Jimenez, and J. R. Gord, "Diode-Laser-Based Sum and Difference Frequency Generation for High-Speed UV and MIR Absorption Spectroscopy," in Laser Applilcations to Chemical, Security and Environmental Analysis, Technical Digest (Optical Society of America, 2006), paper ThC3.
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