Application Note

Ultra-Narrowband Optical Bandpass Filters With Large Format And Improved Temperature Stability

Source: Alluxa, Inc.

By Michael Scobey, Peter Egerton, Rance Fortenberry, and Amber Czajkowski

Hard coated ultra-narrowband optical filters made using modern plasma processes offer much improved transmission, temperature stability and out of band blocking as compared to legacy soft coatings. These filters are used in optical systems as diverse as LIDAR (light detection and ranging), Doppler shift detection of plasma velocity, laser cleanup, chemical and gas sensing, as well as for cutting-edge astronomy and instrumentation applications.

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