Chromium Plate Half Mirror 30mm Diameter Wedged 750 - 850nm
PSCH-30C05-10W-800
Chromium plate half mirrors are plate beamsplitters that are coated with chromium (Cr) on the front surface of optical parallels or wedged substrates. The other surface is coated with multi-layer anti-reflection.
◦Half mirror divides input beam into reflectance and transmittance ratio of 1:1. A beamsplitter of R:T=1:1 is called “Half Mirror”.
◦Approximately one third of the input beam is lost because of the absorption of chromium. However these beamsplitters do not depend on wavelength, polarization and angle of incidence of the input beam, and provide a highly neutral reflectivity.
◦Plate beamsplitters have beam deviations on transmission and ghost on rear surface reflections. Wedged substrates are used to prevent ghosting.
◦Approximately one third of the input beam is lost because of the absorption of chromium. However these beamsplitters do not depend on wavelength, polarization and angle of incidence of the input beam, and provide a highly neutral reflectivity.
◦Plate beamsplitters have beam deviations on transmission and ghost on rear surface reflections. Wedged substrates are used to prevent ghosting.
| Name | Chromium Plate Half Mirror 30mm Diameter Wedged 750 - 850nm |
|---|---|
| Weight | 0.0090kgs |
| Standard Coatings Available | No |
| Guide |
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| Remark | - |
| Attention |
|
| Design wavelength | 750 - 850nm |
| Image Label | Chromium Plate Half Mirror 30mm Diameter Wedged 750 - 850nm |
| Diameter φD | 30mm |
| Material | BK7 |
| Surface flatness | λ/10 |
| Coating |
Front surface ; Chromium Rear surfaces ; Multilayer antireflection coating |
| Incident angle | 45° |
| Transmittance <br> (Average P and S) | 30±5% (average with respect to wavelength.) |
| Divergence ratio <br> (reflectance : transmittance) | 1 : 1 |
| Laser Damage Threshold | 0.25J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz) |
| Surface Quality <br> (Scratch-Dig) | 40-20 |
| Wavelength range | 750 - 850nm |
| Diameter φD | φ30mm |
| Thickness t | 5mm |
| Wedge angle W | 1°±5′ |
In stock
SKU
PSCH-30C05-10W-800
$230.00
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Chromium plate half mirrors are plate beamsplitters that are coated with chromium (Cr) on the front surface of optical parallels or wedged substrates. The other surface is coated with multi-layer anti-reflection.
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