UV Liquid Crystal Variable Retarder

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UV Liquid Crystal Variable Retarder

KEY FEATURES
  • Phase of Amplitude modulation of UV spectrum
  • Analog modulation
  • Non-mechanical polarization control
  • Low absorption
  • High UV tolerance LC
DESCRIPTION

Liquid crystal technology for polarization control now extends into the ultraviolet. While standard LC materials are susceptible to UV light damage below 450 nm, Meadowlark has designed a new UV-resistant LCVR material capable of operating at lower wavelengths (as low as 350 nm). These parts can be custom configured for use as variable attenuators or polarization rotators and are compatible with our standard line of liquid crystal controllers.

Specifications - UV LC Variable Retarder
Retarder Material Nematic liquid crystal
Substrate Material UV Grade Fused Silica
Wavelength Range 350-450 nm (specify)
Maximum Retardance* 1/2 λ at 400 nm
Minimum Retardance 0.06 λ at 400 nm (at 10 V)
Transmitted Wavefront Distortion λ/4 (P-V @ 633)
[λ/16 (RMS @ 633)]
Surface Quality 40-20 scratch-dig
Beam Deviation 2 arc min
Reflectance* AR coatings are available
Diameter Tolerance ± 0.010 in.
Temperature Range 0˚C to +50˚C (Operating)
*Custom configurations available

 

Ordering Information - UV LC Variable Retarders
Clear Aperture
in. [mm]
Thickness
in. [mm]
Diameter
in. [mm]
Part Number
0.37
[9.4]
1.23
[31.2]
Ø1.00
[Ø25.4]
LVR-100-UV
0.70
[17.78]
0.75
[19.05]
Ø2.00
[Ø50.8]
LVR-200-UV