Dielectric Cube Beamsplitter 20mm 1:3 R/T Ratio

CSM25-20-550

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Cube beamsplitters with dielectric multi-layer coated on the hypotenuse face of a 45° right angle prism. Divides beams at reflected light (R): transmission light (T) ratio of 1:2 or 1:3.

Details

◦Anti-reflection coating (AR coat) is applied to the incident and outgoing faces.
◦The dielectric multi-layer films has virtually zero light absorption and very low light intensity loss. However, transmittance and reflectance may change according to wavelength, polarization and incident angles.
◦In contrast to plate type half mirrors, cube mirrors have no ghosting or transmission optical path deviation.

More Information

More Information
Name	Dielectric Cube Beamsplitter 20mm 1:3 R/T Ratio
Weight	0.0200lbs
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 For a guarantee in reflected wavefront error or transmitted wavefront error, please contact our Sales Division with your requests.
Remark	-
Attention	Input beam from the prism side is indicated by a “○”(hypotenuse coated side). The transmission curve on the graph is based on actual measurements and may vary from different production lots. Phase retardation of inputting light will not be preserved. Please use waveplate for phase compensation. Use only non-polarized light or circular polarized light as incident light for dielectric multi-layer coated beam splitters. Using polarized light may result in R:T ratios that vary according to polarization components. Dielectric multi-layer coated cube half mirrors sometimes do not function effectively. If this should occur, first check the polarization characteristics of the light source (laser) and keep in mind that lasers used in the semiconductor field emit a linear polarized light.
Design wavelength	400 - 700nm
Image Label	Dielectric Cube Beamsplitter 20mm 1:3 R/T Ratio
Length	20mm
Reflectance : Transmittance	1:3
Material	BK7
Surface flatness of substrate	λ/4
Wavelength Range	400 - 700nm
Beam Deviation	＜5′
Coating	Hypotenuse surface ; Dielectric multilayer coating Rear surfaces ; Multilayer antireflection coating
Incident angle	0°
Polarization of the incident	Unpolarized light or 45-degrees Linear polarization or Circular polarization
Laser Damage Threshold	0.3J/cm² (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Surface Quality <br> (Scratch-Dig)	10-20
Reflectance : Transmittance	1：3
A＝B＝C	20mm
Transmittance at 550nm <sup>*</sup>	75±5%
Transmittance at 400・700nm <sup>*</sup>	＜90%
Availability	Please contact

In stock

SKU

CSM25-20-550

SGD 324.40

Cube beamsplitters with dielectric multi-layer coated on the hypotenuse face of a 45° right angle prism. Divides beams at reflected light (R): transmission light (T) ratio of 1:2 or 1:3.

Dielectric Cube Beamsplitter 20mm 1:3 R/T Ratio

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