Glan-Thompson Polarizer

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Glan-Thompson Polarizer

KEY FEATURES
  • Broad spectral range
  • Excellent extinction ratio
DESCRIPTION

By precisely controlling internal prism angles in these calcite polarizers, a very efficient linear polarizer is produced. Meadowlark Optics offers Glan-Thompson Polarizers, intended for precision optical instrumentation and low power laser applications. Key advantages of Glan-Thompson Polarizers include excellent extinction ratio performance and a broad spectral range. Our Glan-Thompson Polarizers are supplied in a black anodized cylindrical housing for easy mounting.

White Paper:   Finding the Optimal Polarizer

Specifications - Glan-Thompson Polarizer
Wavelength Range 320 - 2300 nm
Substrate Material Grade A Optical Calcite
Beam Deviation ± 3 arc-min
Reflectance (per surface, at normal incidence)
Uncoated
Single Layer MgF2
~4.5%
~1.5%
Contrast Ratio 10,000:1 over central
2/3 of clear aperture
Acceptance Angle ± 5˚
Laser Damage Threshold 25-30 W/cm2 CW
 

 

Ordering Information - Glan-Thompson Polarizer
Clear
Aperture
in. [mm]
Wavelength
Range (nm)
AR
Coating
Part Number
.197 [5.0] 320-2300 none GTP-M05
.197 [5.0] 400-700 MgF2 GTP-M05-0550
.197 [5.0] 650-1000 MgF2 GTP-M05-0825
.197 [5.0] 1000-1500 MgF2 GTP-M05-1250
.31 [7.9] 320-2300 none GTP-M08
.31 [7.9] 400-700 MgF2 GTP-M08-0550
.31 [7.9] 650-1000 MgF2 GTP-M08-0825
.31 [7.9] 1000-1500 MgF2 GTP-M08-1250
.39 [9.9] 320-2300 none GTP-M08
.39 [9.9] 400-700 MgF2 GTP-M10-0550
.39 [9.9] 650-1000 MgF2 GTP-M10-0825
.39 [9.9] 1000-1500 MgF2 GTP-M10-1250