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Meadowlark Optics

Dual-Wavelength Retarder

Dual wavelength retarders made using crystal quartz have traditionally been used to provide the same or different retardances at two wavelengths. Our dual wavelength retarders use polymers instead of quartz and have a slower change in retardance with angle of incidence. The average order is about 20% of that for a comparable quartz dual wavelength retarder. They have a retardance tolerance of ±0.01 waves at both wavelengths. Standard unmounted sizes are 0.50 inches and 1.00 inches, uncoated. Contact a Meadowlark Optics Solutions Engineer for assistance with your unique needs.

Dual-Wavelength Retarder

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