wave plates Polarizers



Polarizers

Optics for the control of polarisation are some of the most important elements in an optical system.  Polarisers produce a linearly polarised beam from a non-polarised or random input.  Bi-refringent materials such as calcite, quartz and mica produce controllable polarisation effects.  Alternatively, thin film polarisation is highly effective for some applications.  We can supply many types of polarisation optics so please contact us with your inquiry.

Polarizer Transm-
ission
Interface Damaged
Threshold
 Material  wavelength
(nm)
Extinction
Ratio
Angular
Field(°)
Glan-Taylor Polarizer (PGT) Medium
Air-space Low to Medium;
200
MW/cm2;
(without escape windows)
Calcite 350-2300 <5x10-5 >7.7
α - BBO 190-3500 <5x10-6 >6.0
YVO4 500-5000 <5x10-6 >6.5
Glan-Laser Polarizer (PGL) Medium
Air-space High power;
500
MW/cm2;
(with escape windows)
Calcite 350-2300 <5x10-5 >7.7
α - BBO 190-3500 <5x10-6 >6.0
YVO4 500-5000 <5x10-6 >6.5
High Transmission Glan-Laser Polarizer (PGH) High
Air-space High power;
500
MW/cm2;
(with escape windows)
Calcite 350-2300 <5x10-5 >7.7
YVO4 500-5000 <5x10-6 >6.5
Glan-Thompson Polarizer (PGM) Medium
Cemented Low power;
100
MW/cm2
Calcite 350-2300 <5x10-5 14-16
Calcite 350-2300 <5x10-5 25-28
α - BBO 220-900 <5x10-6 >15
Glan-Thompson Polarizer Beamsplitter Cube (PGB) Medium
Cemented Low or Medium;
150
MW/cm2
Calcite 350-2300 <5x10-5 14-16
Wollaston Polarizer (PWS) High
Cemented low power;
100
MW/cm2
Calcite 350-2300 <5x10-5 16.7-22.5
α - BBO 190-3500 <5x10-6 15-27
YVO4 500-5000 <5x10-6 19.6-23.3
High
Optical Contact Medium power;
200
MW/cm2
Quartz 200-2300 <5x10-5 2-3
MgF2 110-8500 <5x10-4 2-3
Rochon Polarizer (PRH) High
Cemented low power;
100
MW/cm2
α - BBO 190-3500 <5x10-6 8-14
YVO4 500-5000 <5x10-6 1-2
High
Optical Contact Medium power;
200
MW/cm2
Quartz 200-2300 <5x10-5 1-2
MgF2 110-8500 <5x10-4 1-2
Polarization Beamsplitter (PBS) High
Cemented low power;
200
MW/cm2
BK7 single wavelength <1x10-3 5
SF5 broadband wavelength <5x10-3 5
Beam Displacer High     High power;
500
MW/cm2
Calcite 350-2300 <5x10-5 5.6
α - BBO 190-3500 <5x10-6 5.6
YVO4 500-5000 <5x10-6 5.6