25mm Dielectric Half-Mirror Cube, 400-700nm AR Coating

CSMH-25-550

Dielectric cube half mirrors consist of two right angle prisms. One of them is coated with dielectric multi-layer partial reflection coating on the hypotenuse face.
◦Half mirror divides input beam into reflectance and transmittance at a 1:1 ratio. A beamsplitter with R:T (1:1 ratio) is called “Half Mirror”.
◦Four surfaces of the cube are coated with multi-layer anti-reflection coatings.
◦The loss of input beam is minimized as there is no absorption from dielectric coating. However the reflection to transmission ratio of these dielectric cube half mirrors vary depending on wavelength, polarization and the incident angle of input beam.
More Information
Name 25mm Dielectric Half-Mirror Cube, 400-700nm AR Coating
Weight 0.0400kgs
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.
Remark -
Attention
  • Input beam from the prism side is indicated by a “○”. Reflection and refraction over wavelength will differ when light input is applied from the opposite side of the prism.
  • The transmittance curves are based on actual measurements and may vary with manufacturing lots.
  • The surface flatness is the reflected wavefront distortion of the surface before coating.
  • Be sure to wear laser safety goggles when checking optical path and adjusting optical axis.
A=B=C 25mm
Coating AR Visible (400 - 700nm)
Design wavelength 550nm
Image Label Dielectric Cube Half Mirror 12.7mm 400 - 700nm
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
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) 20-10
Wavelength range 400 - 700nm
A=B=C 25mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
In stock
SKU
CSMH-25-550
$277.00

Delivery in : 6-12 weeks

Dielectric cube half mirrors consist of two right angle prisms. One of them is coated with dielectric multi-layer partial reflection coating on the hypotenuse face.

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