A super mirror is an ultra-high-performance optical mirror designed to achieve surface reflectance as close to 100% as possible, in order to maximize optical system efficiency and performance.
Our mirrors can have reflectance as high as 99.993 % for specified wavelength.
Using ion beam sputtering (IBS), we have deposited high-quality, dense coatings with minimal defects.
A specially ultra-precision polishing substrates, achieving a surface roughness of Ra < 0.1 nm, ensuring exceptionally low scattering.
Thanks to a coating design technology, we have achieved mirror reflectivity up to 99.999%.
With extremely low scattering losses from both the substrate and the coating, these mirrors are ideal for high-finesse optical cavities, enabling very narrow spectral bandwidths and exceptional optical performance.
Specification
| Substrate | |
| Material | Synthetic Fused Silica |
| Face dimensions | Ø25.4 mm |
| Thickness | 6 mm |
| Surface flatness | λ/10 |
| Parallelism | ＜5″ |
| Surface Quality (Scratch-Dig) | 10-5 |
| Clear Aperture | >90% |
| Coating | |
| Coating S1: | Dielectric Multi-layer High-Reflection Coating |
| Ra (λ=0.532 µm) | 99.993% |
| Optical losses , ppm | < 35 |
| Coating S2: | Dielectric Multi-layer Anti-Reflection Coating |
| AR coating (λ=0.532 µm) | < 0.004% |