Laser Line Plate Half Mirror 30mm Diameter 157nm

PSMH-30C03-P-157

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Laser line plate mirrors are plate beamsplitters that are optically coated with dielectric multi-layer on the front surface of optical parallels or wedged substrates. The rear surface is coated with multi-layer anti-reflection.

Details

◦Half mirrors divide input beam into reflectance and transmittance ratio of 1:1. A beamsplitter of R:T=1:1 is called “Half Mirror”.
◦Any loss from the input beams of this product is minimized because dielectric coatings have no absorption properties. However, the input ratio of reflection to transmission depends on wavelength, polarization and angle of incident of input beam.
◦Plate beamsplitters have beam deviations on transmission and ghost on rear surface reflections. Wedged substrates are used to prevent ghosting.

More Information

More Information
Name	Laser Line Plate Half Mirror 30mm Diameter 157nm
Weight	0.0070lbs
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 We also have ultra-wideband, broadband and cube types. For a guarantee in reflected wavefront error or transmitted wavefront error, please contact our Sales Division with your requests. Wedged types are marked with an arrow on the side of the substrate indicating the thickest point of the wedge.
Remark	-
Attention	Should these products not function as a half mirror, please check the polarization characteristics of the light source. Do note that LD laser is linear in polarization. The beam deviation at transmission of a wedged beamsplitter is large compared to a one made of optical parallel. The amount of beam deviation of a beamsplitter depends on the thickness of the substrate and the wavelength or the incident angle of the input beam. Transmission curves are based on actual measurements and may vary with manufacturing lots. Surface flatness is the reflected wavefront distortion of the surface prior to coating. Be sure to wear laser safety goggles when checking optical path and adjusting optical axis.
Design wavelength	157nm
Image Label	Laser Line Plate Half Mirror 30mm Diameter 157nm
Diameter φD	30mm
Material	CaF<sub>2</sub>
Reflectance : Transmittance	R=40±10%
Material	CaF₂
Surface flatness	λ/10( PSMH-157 is Polished)
Coating	Front surface ; Dielectric multilayer coating Rear surfaces ; Multilayer antireflection coating
Incident angle	45°
Divergence ratio <br> (reflectance : transmittance)	1 : 1
Surface Quality <br> (Scratch-Dig)	10-5 (PSMH-157 ; 40-20)
Wavelength range	157nm
Diameter φD	φ30mm
Thickness t	3mm
Parallelism<br>Wedge angle W	＜3′
Reflectance R<br>Transmittance T	R=40±10%
Laser Damage Threshold<sup>*</sup>	0.5J/cm²
Availability	Please contact
*Laser Pulse width ; 20ns , Repetition frequency ; 20Hz

In stock

SKU

PSMH-30C03-P-157

SGD 845.70

Laser Line Plate Half Mirror 30mm Diameter 157nm

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