OPTICS
Super Mirror
TFHSM
The Fabry-Perot type resonator cavity is often used for measuring extremely high accuracy time or distance with use of the light. Super mirror is a ultra-high performance mirror that surface reflectance is close to 1 (100%) as much as possible in order to increase the performance of the resonator.
Optics & Optical Coatings
- By using an ion beam sputtering (IBS), high quality and dense coating with few defects has been coated.
- With a special polishing technique, the low-scattering substrate of surface flatness Ra<0.1nm is used.
- The mirror coating with reflectivity of 99.999% is achieved from the coating design technology that had been developed for many years.
- Scattering loss due to the substrate and the coating is very small, when it is incorporated into a cavity, it is to be expected a high finesse and very narrow spectral bandwidth.
- It is provided two types of wavelength 532nm and 1064nm.
Key Specifications
| Material | Synthetic Fused Silica |
| Coating | Front Surface: Dielectric Multi-layer High-Reflection Coating Rear Surface: Dielectric Multi-layer Anti-Reflection Coating |
| Incident Angle | 0° |
| Surface flatness of substrate | λ/10 |
| Parallelism | <5″ |
| Surface Quality (Scratch–Dig) | 10–5 |
| Clear Aperture | 80% of Actual Aperture |
| Reflectance of Rear Surface | <0.15% |
| Surface Substrate Type | Optical Flat |
