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Various dimensions substrates made from BK7, UVFS, IRFS, CaF2, ZnSe, Sapphire, MgF2.
Standard substrates are laser grade polished on both surfaces. These substrates are ideal for beamsplitters, windows, partial reflecting mirrors etc.
Laser components require highly polished substrates as well as high performance coatings. Scattering, laser damage of laser light can occur
if the substrate is made of inferior material or if it is inadequately polished. For UV, very high power applications and ultrashort pulses
we recommend using UVFS substrates. BK7 substrates are economical solution for laser components used in many applications in laboratory
as well as in many devices and instruments.
Standa provides various dielectric and metallic coatings on optical substrates.
Standard Specifications
| Material | BK7, UVFS, IRFS, CaF2, ZnSe, Sapphire, MgF2 |
| Shape | Round, Rectangular |
| Surface Quality | 20-10 scratch & dig (BK7, UVFS);
40-20 scratch & dig (ZnSe, Sapphire, CaF2, MgF2) |
| Surface Figure | λ/10 - λ/8 per 1 inch diam (BK7, UVFS)
λ/2 - λ/4 per 1 inch diam (ZnSe) |
| Dimension Tolerances | Diameter: +0.0, -0.1 mm; Thickness: ±0.1 mm |
| Coatings | None. Please refer to the Coating Section |
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Standard Products
| Material | Dimensions, mm | Parallelism Error | Ordering Code |
| BK7 | 12.7x3 | <1 arcmin | 14S-05-1 |
| 12.5x5 | <1 arcmin | 14S-4-1 |
| 12.7x6 | <1 arcmin | 14S-5-1 |
| 20x40x3 | <20 arcsec | 14S-6-1 |
| 25.4x3 | <1 arcmin | 14S-7-1 |
| 25.4x5 | 1 deg ± 5 arcmin | 14S-8-1 |
| 25.4x5 | 3°±<5 arcmin | 14S-11-1 |
| 25.4x6 | <1 arcmin | 14S-1-1 |
| 30x6 | <1 arcmin | 14S-9-1 |
| 38.1x5 | <1 arcmin | 14S-10-1 |
| 50.8x8 | <1 arcmin | 14S-2-1 |
| 76.2x8 | <1 arcmin | 14S-3-1 |
| UVFS | 12.7x2 | <1 arcmin | 14S-11-2 |
| 12.7x3 | <1 arcmin | 14S-05-2 |
| 12.7x5 | <1 arcmin | 14S-4-2 |
| 12.7x6 | <1 arcmin | 14S-5-2 |
| 20x40x3 | <20 arcsec | 14S-6-2 |
| 20x40x5 | <20 arcsec | 14S-19-2 |
| 20x60x5 | 1 deg ± 5 arcmin | 14S-13-2 |
| 20x60x2 | <20 arcsec | 14S-14-2 |
| 25.4x3 | <1 arcmin | 14S-7-2 |
| 25.4x5 | <1 arcmin | 14S-8-2 |
| 25.4x3 | 1 deg ± 5 arcmin | 14S-16-2 |
| 25.4x3 | 3 deg ± 5 arcmin | 14S-22-2 |
| 30x5 | <1 arcmin | 14S-17-2 |
| 30x30x5 | <1 arcmin | 14S-18-2 |
| 38.1x5 | <1 arcmin | 14S-10-2 |
| 50.8x6 | <1 arcmin | 14S-20-2 |
| 76.2x6 | <1 arcmin | 14S-21-2 |
| IRFS | 12.7x6 | <1 arcmin | 14S-5-3 |
| 25.4x3 | <1 arcmin | 14S-7-3 |
| ZnSe | 25.4x3 | <1 arcmin | 14S-7-4 |
| CaF2 | 25.4x3 | <1 arcmin | 14S-7-5 |
| MgF2 | 25.4x3 | <1 arcmin | 14S-7-6 |
| Sapphire | 25.4x3 | <1 arcmin | 14S-7-7 |
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