Ultra-Broadband high reflectors are ideal for applications such as photon counting, hyperspectral imaging or Raman Spectroscopy.
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10Q20BB.1 Dielectric Mirror, Ultra-broadband, 25.4 mm, 99% 0-50°, 350-700 nm |
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$373.00 |
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10Q20BB.2 Dielectric Mirror, Ultra-broadband, 25.4 mm, 99% 0-50°, 610-1130 nm |
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$470.00 |
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10Q20BB.3 Dielectric Mirror, Ultra-broadband, 25.4 mm, 99% 0-50°, 350-1100 nm |
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$555.00 |
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| Models |
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| Wavelength Range | 350-700 nm | 610-1130 nm | 350-1100 nm |
| Angle of Incidence | 0-50° | 0-50° | 0-50° |
| Coating Type | Ultra-broadband Dielectric | Ultra-broadband Dielectric | Ultra-broadband Dielectric |
| Reflectivity | Rs, Rp>99% @ 350-700 nm | Rs, Rp>99% @ 610-1130 nm | Rs, Rp>99% @ 350-1100 nm |
| Damage Threshold | 1 J/cm2 @ 20 ns, 20 Hz, 355 nm & 532 nm | 2 J/cm2 @ 20 ns, 20 Hz, 1064nm | 1 J/cm2 @ 20 ns, 20 Hz, 355 nm & 532 nm; 5 J/cm2 @ 20 ns, 20 Hz, 1064nm |
| Material | UV Grade Fused Silica | UV Grade Fused Silica | UV Grade Fused Silica |
| Surface Quality | 20-10 scratch-dig | 20-10 scratch-dig | 20-10 scratch-dig |
| Surface Flatness | λ/10 at 632.8 nm with power removed | λ/10 at 632.8 nm with power removed | λ/10 at 632.8 nm with power removed |
| Diameter | 25.4 mm | 25.4 mm | 25.4 mm |
| Diameter Tolerance | +0/-0.25 mm | +0/-0.25 mm | +0/-0.25 mm |
| Thickness | 6.35 mm | 6.35 mm | 6.35 mm |
| Thickness Tolerance | ±0.25 mm | ±0.25 mm | ±0.25 mm |
| Wedge | <3 arc min | <3 arc min | <3 arc min |
| Clear Aperture | ≥central 80% of diameter | ≥central 80% of diameter | ≥central 80% of diameter |
| Chamfers | 0.51 ± 0.25 mm face width bevel mm face width | 0.51 ± 0.25 mm face width bevel mm face width | 0.51 ± 0.25 mm face width bevel mm face width |
| Chamfers Angle Tolerance | 45° | 45° | 45° |
Fused Silica is synthetic amorphous silicon dioxide of extremely high purity. This non-crystalline, colorless silica glass combines a low content of inclusions with high refractive index homogeneity, a very low thermal expansion coefficient, and excellent transmittance in the wavelength regime from UV to NIR. As a result, these mirrors will perform better with temperature fluctuations and is ideal for high-energy laser applications due to its high energy damage threshold. For more information, please see our Optical Materials technical note.
Using superior ion beam sputtering coating technology, very high absolute reflectivity can be achieved across a large wavelength range. It is advantageous in low light situations when it is critical to collect as much light as possible. Depending on the coating type, you will have as much as RS, RP >99% for 350-1100 nm at 0-50° angle of incidence.
BB.1 coated mirrors covers the UV to visible wavelength regime from 350 to 700 nm
BB.2 coated mirror covers the visible to near IR wavelength regime from 610 to 1130 nm
BB.3 coated mirror covers the UV to near IR wavelength regime from 350 to 1100 nm.
All dielectric coating construction is physically more durable than standard metallic coatings. Dielectric mirrors are more resistant to humidity, thermal changes, abrasion and salt exposure.
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