Optical Filter Source (OFS) (Austin, TX), teaming with Pellicori Optical Consulting (POC) (Santa Barbara, CA) has developed and demonstrated solar-blind UV filters for applications in the wavelength range covering the UV regions: UVA (300 - 400 nm), UVB (280 -300 nm), and the long-wave part of the UVC band (~225 – 280 nm). There is a need for UV bandpass filters in the UVC spectrum at wavelengths shorter than ~270 nm that possess extreme rejection of solar energy at wavelengths longer than ~300 nm. The solar spectrum contains >99% of its total energy at wavelengths longer than ~300 nm, therefore very high rejection is needed to permit the detection of UV energy.

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Topics:
Photonics