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     Thin Film Polarizer-Brewster
Home >> Glan Polarizer >> Thin Film Polarizer-Brewster 

Dayoptics thin film polarizer based on a coating made up of particular birefringent materials having polarizer properties while the coating is designed under Brewster angle.

Brewster Angle :For light incident on a plane boundary between two regions having different refractive indices,the angle of incidence at which the reflectance is zero for light that has its electrical field vector in the plane defined by the direction of propagation and the normal to the surface.For propagation from medium 1to medium 2,Brewster’s angle is given as arctan (n2/n1)


Specifications

Material

BK7

Two surfaces polished

 Surface Quality

40/20 Both Sides

Flatness

λ/8@633nm

Surface Quality

20/10

Other surfaces are fine ground

Chamfer

<0.3*45°

One Side Coating

Tp>97% and Ts<0.05%@1064nm(Brewster angle incidence 56.4 deg)

Standard Products

         Dimension

28.6*14.3mm

Thickness

3mm

Standard Code

PTF1001