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Dielectric Cube Half Mirrors

CSMH

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Dielectric Cube Half Mirrors
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SKU
CSMH
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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Name A=B=C Coating Design wavelength Delivery Price Add to cart
i
7mm Dielectric Half-Mirror Cube, 400-700nm AR Coating
CSMH-07-550 		7mm AR Visible (400 - 700nm) 550nm
3-5 days
£139.00
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
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 7mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
15mm Dielectric Half-Mirror Cube, 400-700nm AR Coating
CSMH-15-550 		15mm AR Visible (400 - 700nm) 550nm
3-5 days
£156.40
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
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 15mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
30mm Dielectric Half-Mirror Cube, 400-700nm AR Coating
CSMH-30-550 		30mm AR Visible (400 - 700nm) 550nm
3-5 days
£364.90
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
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 30mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
10mm Dielectric Half-Mirror Cube, 750-850nm AR Coating
CSMH-10-800 		10mm 800nm
3-5 days
£138.90
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
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 750 - 850nm
A＝B＝C 10mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
20mm Dielectric Half-Mirror Cube, 750-850nm AR Coating
CSMH-20-800 		20mm 800nm
6-12 weeks
£164.10
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
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 750 - 850nm
A＝B＝C 20mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
10mm Dielectric Half-Mirror Cube, 1300-1550nm AR Coating
CSMH-10-1400 		10mm
6-12 weeks
£138.90
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
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 1300 - 1550nm
A＝B＝C 10mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
15mm Dielectric Half-Mirror Cube, 390-410nm AR Coating
CSMH-15-405 		15mm 405nm
3-5 days
£156.40
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
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 390 - 410nm
A＝B＝C 15mm
Transmittance (Average P and S) 50±3% (average with respect to wavelength.)
i
30mm Dielectric Half-Mirror Cube, 390-410nm AR Coating
CSMH-30-405 		30mm 405nm
3-5 days
£364.90
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
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 390 - 410nm
A＝B＝C 30mm
Transmittance (Average P and S) 50±3% (average with respect to wavelength.)
i
10mm Dielectric Half-Mirror Cube, 400-700nm AR Coating
CSMH-10-550 		10mm AR Visible (400 - 700nm) 550nm
3-5 days
£139.00
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
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 10mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
20mm Dielectric Half-Mirror Cube, 400-700nm AR Coating
CSMH-20-550 		20mm AR Visible (400 - 700nm) 550nm
6-12 weeks
£199.80
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
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 20mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
40mm Dielectric Half-Mirror Cube, 400-700nm AR Coating
CSMH-40-550 		40mm AR Visible (400 - 700nm) 550nm
6-12 weeks
£508.90
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
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 40mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
12.7mm Dielectric Half-Mirror Cube, 750-850nm AR Coating
CSMH-12.7-800 		12.7mm 800nm
3-5 days
£146.30
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
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 750 - 850nm
A＝B＝C 12.7mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
25mm Dielectric Half-Mirror Cube, 750-850nm AR Coating
CSMH-25-800 		25mm 800nm
6-12 weeks
£195.20
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
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 750 - 850nm
A＝B＝C 25mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
12.7mm Dielectric Half-Mirror Cube, 1300-1550nm AR Coating
CSMH-12.7-1400 		12.7mm
3-5 days
£146.30
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
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 1300 - 1550nm
A＝B＝C 12.7mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
10mm Dielectric Half-Mirror Cube, 390-410nm AR Coating
CSMH-10-405 		10mm 405nm
3-5 days
£139.00
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
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 390 - 410nm
A＝B＝C 10mm
Transmittance (Average P and S) 50±3% (average with respect to wavelength.)
i
20mm Dielectric Half-Mirror Cube, 390-410nm AR Coating
CSMH-20-405 		20mm 405nm
3-5 days
£199.80
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
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 390 - 410nm
A＝B＝C 20mm
Transmittance (Average P and S) 50±3% (average with respect to wavelength.)
i
5mm Dielectric Half-Mirror Cube, 400-700nm AR Coating
CSMH-05-550 		5mm AR Visible (400 - 700nm) 550nm
3-5 days
£139.00
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
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 5mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
12.7mm Dielectric Half-Mirror Cube, 400-700nm AR Coating
CSMH-12.7-550 		12.7mm AR Visible (400 - 700nm) 550nm
3-5 days
£146.30
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
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 12.7mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
25mm Dielectric Half-Mirror Cube, 400-700nm AR Coating
CSMH-25-550 		25mm AR Visible (400 - 700nm) 550nm
3-5 days
£243.30
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
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.)
i
50mm Dielectric Half-Mirror Cube, 400-700nm AR Coating
CSMH-50-550 		50mm AR Visible (400 - 700nm) 550nm
6-12 weeks
£712.50
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
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 50mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
15mm Dielectric Half-Mirror Cube, 750-850nm AR Coating
CSMH-15-800 		15mm 800nm
3-5 days
£150.90
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
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 750 - 850nm
A＝B＝C 15mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
30mm Dielectric Half-Mirror Cube, 750-850nm AR Coating
CSMH-30-800 		30mm 800nm
6-12 weeks
£301.80
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
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 750 - 850nm
A＝B＝C 30mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
20mm Dielectric Half-Mirror Cube, 1300-1550nm AR Coating
CSMH-20-1400 		20mm
3-5 days
£164.10
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
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 1300 - 1550nm
A＝B＝C 20mm
Transmittance (Average P and S) 50±5% (average with respect to wavelength.)
i
12.7mm Dielectric Half-Mirror Cube, 390-410nm AR Coating
CSMH-12.7-405 		12.7mm 405nm
6-12 weeks
£146.30
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
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 390 - 410nm
A＝B＝C 12.7mm
Transmittance (Average P and S) 50±3% (average with respect to wavelength.)
i
25mm Dielectric Half-Mirror Cube, 390-410nm AR Coating
CSMH-25-405 		25mm 405nm
6-12 weeks
£243.30
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
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 390 - 410nm
A＝B＝C 25mm
Transmittance (Average P and S) 50±3% (average with respect to wavelength.)

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◦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.

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