CASIX

Polarizers

A polarizer is an important optical component that is widely used in optics to produce a state of linear polarization. Casix provides polarizers with three materials, α-BBO, calcite and YVO4, making them suitable for the widest spectrum and high polarization purity application.

Polarizer	Material	Illustration	Properties and Applications
Glan Taylor Polarizer	α-BBO (200-3500) Calcite (350-2300) YVO₄ (450-5000)		-Air-spaced -Cutting angle close to Brewsterundefineds angle -The extraordinary ray passes through with little deviation -Sealed mount without escape windows is suitable for low to medium power applications where the rejected beam is not required
Glan Laser Polarizer	α-BBO (200-3500) Calcite (350-2300)		-Cutting angle close to Brewsterundefineds angle -Mounted with escape windows, therefore it is suitable for high power applications
Glan Thompson Polarizer	Calcite (350-2300)		-Cemented -Suitable for low power applications -Special design for the ration of L/A (length/aperture) guarantees the wide acceptance angle
Wollaston Polarizer	Calcite (350-2300)		-Cemented -Both ordinary and extraordinary beams are deviated -Suitable for low power applications and where a large deviation is required
Rochon Polarizer	α-BBO (190-3500)		-Made by α-BBO material guaranteeing a wide transmission range, especially suited for UV applications -Split the ordinary and extraordinary ray, but only extraordinary beam is deviated -Wide wavelength range

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