Non-polarizing Cube Half Mirror BK7 20mm 488nm

NPCH-20-4880

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

Details

◦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

More Information
Name	Non-polarizing Cube Half Mirror BK7 20mm 488nm
Weight	0.0210lbs
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	488nm
Image Label	Non-polarizing Cube Half Mirror BK7 20mm 488nm
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	0°
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	488nm
A＝B＝C	20mm
Transmittance	50±5%

In stock

SKU

NPCH-20-4880

SGD 463.40

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

Non-polarizing Cube Half Mirror BK7 20mm 488nm

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