Beamsplitter Coating

Beamsplitter Coating


An optical device for dividing a beam into two or more separate beams. A simple beamsplitter may be a very thin sheet of glass inserted in the beam at an angle to divert a portion of the beam in a different direction.A more sophisticated type consist of two right-angle prisms cemented together at their hypotenuse faces.The cemented face of one prism is coated ,before cementing,with a metallic or dielectric layer having the desired reflecting properties.

Coating Type  Properties and Application 
Beamsplitter Laser Line Polarization Beamsplitter High reflection for s-polarized and antireflection for p-polarized for laser application. 
Broadband Polarization Beamsplitter Wide wavelength bandwidth provide high reflection to s-polarized and antireflection to p-polarized.
Non-polarizing beamspiltter The low polarization dependence of the metallic dielectric hybrid coating allows the transmission and reflection of S-polarization and P-polarization states to be within 6% of each other. 

Laser Line Polarization Beamsplitter Coating

 

PBS 632.8nm Rs>99.5% & Rp<5% @632.8nm AOI=45Deg
 

Broadband Polarization Beamsplitter Coating


 

Rs>99.5% & Rp=2±1% @ 770nm~800nm AOI=45Deg

 

Rs>99% & Rp<5% @ 800nm~1100nm AOI=45Deg
 

Non-polarizing beamspiltter Coating
 

 

 

Rs:Ts=Rp:Tp=50:50 @ 632.8nm AOI=45Deg

 


 

Tp=Ts=Rp=Rs=45%, |Tp-Ts|<6%, |Rp-Rs|<6%,
Absorbtion<10%@430nm~670nm
Red Line - Tp, Blue Line - Ts