Non-polarizing Cube Half Mirror / NPCH-20-2660

Half mirrors have an even 1:1 ratio of reflection and transmission in both linear polarized light and normal light source.

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Part Number
NPCH-20-2660
S$647.72
◦The reflection to transmission ratio is 1:1 regardless of the polarization condition from the input beam.
◦Depending on polarization, the reflection to transmission ratio of these products does not vary.
◦The laser lines listed correspond to various laser wavelengths.
◦Narrowband multi-layer AR coatings are applied to the four surfaces of the cube.
◦These cubes afe designed for a single wavelength because the effective bandwidth of a non-polarizing coating is narrow.
More Information
Catalog Code W3012
RoHS Yes
CE No
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Guide ▶Please contact our Sales Division for customized products. (Customized on size, wavelength or R:T, etc.)
WEB Reference Catalog Code/W3802
▶Non-polarizing beam splitter (plate type) is also possible.
▶For a guarantee in reflected wavefront error or transmitted wavefront error
Attention ▶Input beam from the prism side is indicated by a “○”.
▶Phase retardation of light input will not be preserved. Use a waveplate for phase compensation.
▶Wavelength dispersion of transmitted and reflected light is derived from refractive index and glass thickness and when diverging or introducing a focusing beam, chromatic aberration or spherical aberration may occur.
Specifications
MaterialSynthetic fused silica
Surface flatness of substrateλ/4
Beam Deviation<5′
CoatingHypotenuse surface ; Dielectric multilayer coating
Four surfaces ; Multilayer antireflection coating
Incident angle
Divergence ratio (reflectance 1:1
Laser Damage Threshold0.3J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Surface Quality (Scratch-Dig)20−10
Clear apertureCircle that inscribed in a square of 85% of the dimensions
(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)
Wavelength Range266nm
A=B=C20m
Transmittance50±10%