Polarizer / Illustration

 Features

Material

Wavelength

(nm)

Extinction

Ratio

Angular

Field(°)

Glan-Laser Polarizer

* High Damage Threshold- 500MW/cm²

* With escape windows

* Close to Brewster's Angle Cutting

* Short Length

Calcite

350-2300

<5x10^-5

 >7.7

α-BBO

190-3500

<5x10^-6

>6.0

YVO4

500-4000

<5x10^-6

>6.5

Glan-Taylor Polarizer

* Air-spaced Design

* Medium Damage Threshold- 200MW/cm²

* Without escape windows

* Close to Brewster's Angle Cutting

* Short Length

Calcite

350-2300

<5x10^-5

 >7.7

α-BBO

190-3500

<5x10^-6

>6.0

YVO4

500-4000

<5x10^-6

>6.5

Brewster Angle Polarizer

* Air-spaced Design

* High Damage Threshold- 500MW/cm²(with escape windows)

* Brewster angle incidence at all surfaces yields Tp>98%

* No anti-reflection coatings needed

Calcite

350-2300

<5x10^-5

 >7.7

YVO4

500-4000

<5x10^-6

>6.5

Glan-Thompson Polarizer

* Cemented Design

* Low Damage Threshold- 100MW/cm²

* Large Acceptance Angle

Calcite

350-2300

<5x10^-5

 14-16

Calcite

350-2300

<5x10^-5

25-28

α-BBO

220-900

<5x10^-6

>15

Glan-Thompson PBS Cube

* Cemented Design

* Low Damage Threshold- 150MW/cm²

* Separate ordinary and extraordinary beams at certain angle

* Large deviation

Calcite

350-2300

<5x10^-5

 14-16

Wollaston Polarizer

* Optically Contacted Design, Medium Damage Threshold- 200MW/cm²

* Cemented Design, Low Damage Threshold- 100MW/cm²

* Separate ordinary and extraordinary beams at certain angle

* Large deviation

Calcite

350-2300

<5x10^-5

16-22.5

α-BBO

190-3500

<5x10^-6

15-27

YVO4

500-4000

<5x10^-6

19.6-23.3

Quartz

200-2300

<5x10^-5

2-3

Rochon Polarizer

* Optically Contacted Design, Medium Damage Threshold- 200MW/cm²

* Cemented Design, Low Damage Threshold- 100MW/cm²

* Split the ordinary and extraordinary ray, but only ordinary beam is deviated

MgF2

120-8500

<5x10^-4

1-2

α-BBO

190-3500

<5x10^-6

8-14

YVO4

500-4000

<5x10^-6

9.8-13

Quartz

200-2300

<5x10^-5

1-2