13 February 2008 Infrared hollow waveguides: an update
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Abstract
Infrared-transmissive hollow waveguides (HWGs) are enjoying resurgence as they are now being used in lengths less than 10 m for sensor and power delivery applications. HWGs are routinely fabricated with losses less than 1 dB/m from 2 to 12 μm. Most of the hollow structures involve silica or plastic tubing with an inside thin metallic film followed by a dielectric coating to enhance the reflectivity. In this paper current HWG technologies will be reviewed and several sensor and power delivery applications discussed.
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James A. Harrington, "Infrared hollow waveguides: an update", Proc. SPIE 6852, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VIII, 68520M (13 February 2008); doi: 10.1117/12.779249; https://doi.org/10.1117/12.779249
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