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Knowledge Center/ Glossary/ Quarter Wave Optical Thickness (QWOT)

Quarter Wave Optical Thickness (QWOT)

The layer of optical coating that is equal in optical thickness to one quarter the design wavelength. Coating layers at this thickness result in the maximum destructive interference of reflected light, and consequently maximum transmittance through the optic. 

See also Half-Wave Optical Thickness (HWOT)

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