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Precision Infrared Narrow Bandpass and Dual Bandpass Filters Featuring Low OH-Band Absorption

Author: Alluxa Engineering Staff
Monday, May 16, 2016
Alluxa

Alluxa’s new class of Infrared (IR) bandpass and dual band filters bring the precision of dielectric filters to the IR between 2 and 5 microns. They are manufactured with an advanced, plasma enhanced PVD process using durable, hard metal-oxide, and durable semiconductor front surface thin films. The films have excellent environmental stability. The OH (water) band at 2.7 microns shows loss below the measurement limit even after 10 days of harsh Mil-810G temperature and humidity cycling.

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Precision Infrared Narrow Bandpass and Dual Bandpass Filters Featuring Low OH-Band Absorption