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Chromium Cube Half Mirrors

CSCH

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Chromium Cube Half Mirrors
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CSCH
Chromium cube half mirrors consist of two right angle prisms. One of them is coated with chromium (Cr) on the hypotenuse face. Half mirror divides input beam to reflectance and transmittance in 1:1. A beamsplitter of R:T=1:1 is called “Half Mirror”.
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Design wavelength
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Delivery Price Add to cart
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CSCH-20-550
400 - 700nm 20mm
in stock
SGD 208.50
Material BK7
Surface flatness of substrate λ/4
Beam Deviation ＜5′
Coating Hypotenuse surface ; Chromium
Four surfaces ; Multilayer antireflection coating
Incident angle 0°
Transmittance <br> (Average P and S) 28±5% (average with respect to wavelength.)
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) 40-20
Wavelength range 400 - 700nm
A＝B＝C 20mm
details
CSCH-10-800
750 - 850nm 10mm
in stock
SGD 150.60
Material BK7
Surface flatness of substrate λ/4
Beam Deviation ＜5′
Coating Hypotenuse surface ; Chromium
Four surfaces ; Multilayer antireflection coating
Incident angle 0°
Transmittance <br> (Average P and S) 28±5% (average with respect to wavelength.)
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) 40-20
Wavelength range 750 - 850nm
A＝B＝C 10mm
details
CSCH-40-550
400 - 700nm 40mm
1-3 weeks
SGD 660.40
Material BK7
Surface flatness of substrate λ/4
Beam Deviation ＜5′
Coating Hypotenuse surface ; Chromium
Four surfaces ; Multilayer antireflection coating
Incident angle 0°
Transmittance <br> (Average P and S) 28±5% (average with respect to wavelength.)
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) 40-20
Wavelength range 400 - 700nm
A＝B＝C 40mm
details
CSCH-10-550
400 - 700nm 10mm
in stock
SGD 139.00
Material BK7
Surface flatness of substrate λ/4
Beam Deviation ＜5′
Coating Hypotenuse surface ; Chromium
Four surfaces ; Multilayer antireflection coating
Incident angle 0°
Transmittance <br> (Average P and S) 28±5% (average with respect to wavelength.)
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) 40-20
Wavelength range 400 - 700nm
A＝B＝C 10mm
details
CSCH-25-550
400 - 700nm 25mm
in stock
SGD 266.50
Material BK7
Surface flatness of substrate λ/4
Beam Deviation ＜5′
Coating Hypotenuse surface ; Chromium
Four surfaces ; Multilayer antireflection coating
Incident angle 0°
Transmittance <br> (Average P and S) 28±5% (average with respect to wavelength.)
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) 40-20
Wavelength range 400 - 700nm
A＝B＝C 25mm
details
CSCH-15-800
750 - 850nm 15mm
1-3 weeks
SGD 185.40
Material BK7
Surface flatness of substrate λ/4
Beam Deviation ＜5′
Coating Hypotenuse surface ; Chromium
Four surfaces ; Multilayer antireflection coating
Incident angle 0°
Transmittance <br> (Average P and S) 28±5% (average with respect to wavelength.)
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) 40-20
Wavelength range 750 - 850nm
A＝B＝C 15mm
details
CSCH-50-550
400 - 700nm 50mm
1-3 weeks
SGD 822.60
Material BK7
Surface flatness of substrate λ/4
Beam Deviation ＜5′
Coating Hypotenuse surface ; Chromium
Four surfaces ; Multilayer antireflection coating
Incident angle 0°
Transmittance <br> (Average P and S) 28±5% (average with respect to wavelength.)
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) 40-20
Wavelength range 400 - 700nm
A＝B＝C 50mm
details
CSCH-15-550
400 - 700nm 15mm
in stock
SGD 173.80
Material BK7
Surface flatness of substrate λ/4
Beam Deviation ＜5′
Coating Hypotenuse surface ; Chromium
Four surfaces ; Multilayer antireflection coating
Incident angle 0°
Transmittance <br> (Average P and S) 28±5% (average with respect to wavelength.)
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) 40-20
Wavelength range 400 - 700nm
A＝B＝C 15mm
details
CSCH-30-550
400 - 700nm 30mm
1-3 weeks
SGD 405.50
Material BK7
Surface flatness of substrate λ/4
Beam Deviation ＜5′
Coating Hypotenuse surface ; Chromium
Four surfaces ; Multilayer antireflection coating
Incident angle 0°
Transmittance <br> (Average P and S) 28±5% (average with respect to wavelength.)
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) 40-20
Wavelength range 400 - 700nm
A＝B＝C 30mm
details
CSCH-20-800
750 - 850nm 20mm
in stock
SGD 220.10
Material BK7
Surface flatness of substrate λ/4
Beam Deviation ＜5′
Coating Hypotenuse surface ; Chromium
Four surfaces ; Multilayer antireflection coating
Incident angle 0°
Transmittance <br> (Average P and S) 28±5% (average with respect to wavelength.)
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) 40-20
Wavelength range 750 - 850nm
A＝B＝C 20mm

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◦Four surfaces of the cube are coated with multi-layer anti-reflection coatings.
◦Approximately one third of the input beam is lost because of absorption of chromium coating on the hypotenuse. However these beamsplitters are not wavelength, polarization and incident angle of the input beam dependent and therefore provide a highly neutral reflectivity.
◦For cube beamsplitters, unlike plate beamsplitters, transmission beam deviations and ghosts rarely occur.