Non-polarizing Cube Half Mirror BK7 20mm 514.5nm

NPCH-20-5145

Half mirrors have an even 1:1 ratio of reflection and transmission in both linear polarized light and normal light source.
◦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
Name Non-polarizing Cube Half Mirror BK7 20mm 514.5nm
Weight 0.0210kgs
Standard Coatings Available No
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, please contact our Sales Division.
Remark -
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.
Design wavelength 514.5nm
Image Label Non-polarizing Cube Half Mirror BK7 20mm 514.5nm
Length 20mm
Material BK7
Transmittance 50±5%
Material BK7
Surface flatness of substrate λ/4
Beam Deviation <5′
Coating Hypotenuse surface ; Dielectric multilayer coating
Four surfaces ; Multilayer antireflection coating
Incident angle
Divergence ratio <br> (reflectance : transmittance) 1 : 1
Laser Damage Threshold 0.3J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Surface Quality <br> (Scratch-Dig) 20-10
Wavelength range 514.5nm
A=B=C 20mm
Transmittance 50±5%
In stock
SKU
NPCH-20-5145
$407.00

Delivery in : 6-12 weeks

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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