Non-polarizing Beamsplitter Cube
Consists of a pair of precision high tolerance right angle prisms, They are cemented together with a metallic-dielectric coating on the hypotenuse of one of the prisms. The low polarization dependence of the metallic-dielectric coating allows the transmission and reflection for S- and P- polarization states to be within 6% of each other. This means that they will not change the state of polarization of the incident beam. We offer both broadband and single wavelength non-polarizing beamsplitter cube (NPBS). An antireflective coating has been applied to each face of the beamsplitter in order to produce maximum transmission efficiency for the appropriate wavelength range.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | N-BK7 or H-K9L grade A optical glass |
| Wavelength(Narrowband) | 532, 633, 808,850, 980, 1064, 1310 |
| Wavelength(Broadband) | 450-650nm, 650-850nm, 900-1200nm |
| Standard Size | 2 mm x2 mm x2 mm,5 mm x5 mm x5 mm, 10 mm x10 mm x10 mm,12.7 mm x12.7 mm x12.7 mm, 20 mm x20 mm x20 mm,25.4 mm x25.4 mm x25.4 mm |
| Dimension Tolerance | ±0.2 mm |
| Flatness(per 25mm@632.8nm) | λ/4 |
| Surface Quality | 60/40 |
| Splitting Ratio | Tp/Rp=Ts/Rs= 45 %±5 % |
| Absorption | <10 % |
| Beam Deviation | <3 arc minutes |
| Coating | Hypotenuse Face :NPBS Coating All Input and Output Faces: AR Coating |
Datasheet
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Supplier Information
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The nonpolarizing beamsplitter cube consists of two right-angle prisms with a metal-dielectric coating on the hypotenuse and antireflection coatings on all entrance and exit faces. Its NPBS coating keeps P- and S-polarized transmission and reflection within 6%. Custom NPBS cube sizes are available.
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A conventional beamsplitter cube consists of two right-angle prisms. One hypotenuse face has a metallic coating or a highly reflective dielectric coating, while the other faces have AR coatings.
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