Laser processing of sol-gel coatings for infrared applications

Guanming Li; Larry W. Burggraf

doi:10.1117/12.279164

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2 October 1997 Laser processing of sol-gel coatings for infrared applications

Guanming Li, Larry W. Burggraf

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Proceedings Volume 3136, Sol-Gel Optics IV; (1997) https://doi.org/10.1117/12.279164
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

A new laser processing technique was proposed and demonstrated for producing high-temperature sol-gel coatings on substrates like ZnSe or chalcogenide infrared fibers which cannot be exposed to relatively high temperatures involved in most sol- gel processes. Our approach is similar to the 'indirect writing' technique except that an air gap is inserted between the sol-gel coating and the light absorber so as not to affect the optical coating. Our processing technique integrates optical sol-gel coatings having tailored properties of porosity, surface area, and surface affinity with substrate materials used for integrated and fiber optic infrared technologies such as optical sensors.

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Guanming Li and Larry W. Burggraf "Laser processing of sol-gel coatings for infrared applications", Proc. SPIE 3136, Sol-Gel Optics IV, (2 October 1997); https://doi.org/10.1117/12.279164

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