PBS Polarizing Beamsplitters
- Polarizing beamsplitters consist of two right angle prisms. One of them is coated with dielectric multilayer polarizing coating on the hypotenuse face.
- Polarizing beamsplitters split monochromatic beam entering at zero degree into p-polarization as transmitted and s-polarization as reflected.
- Four surfaces of the cube are coated with narrowband multilayer antireflection coatings.
- The losses of input beam of these products are minimized because of no absorption of dielectric coating.
- For cube beamsplitters, unlike plate beamsplitters, beam deviations of transmitted beams and ghosts rarely occur.
- Input a beam from the surface of the prism that is marked with ○.
- The transmittance curves are based on actual measurements and might be different with manufacturing lots.
- The surface flatness is the reflected wavefront distortion of the surface before coating.
- Be sure to wear laser safety goggles when checking optical path and adjusting optical axis.
|Beam deviation||≤10 arcmin|
|Coating||Hypotenuse Surface: Dielectric Multilayer Polarizing Coating(effective area:80%)|
Four Surfaces: Narrowband Multilayer Antireflection Coating
|Angle of incidence||0°|
|Surface quality||40 - 20|
|Extinction Ratio||1/400(S-polarization) Ts/ (Ts＋Rs) (Except for 405nm)|
|Transmittance||>= 97% (P-polarization(Except for 405nm)|
Tp ≥ 90% Ts ≤ 1%(405nm)