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.
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 the diameter | |
| Reflectance of Rear Surface | ＜0.15％ | |
| Substrate Type | Optical Flat |
| Schematic | Outline Drawing |
|---|---|
 |
 |
| Part Number | Wavelength Range | Diameter φD |
Thickness t |
Reflectance*1 | Loss*2 |
|---|---|---|---|---|---|
| TFHSM-12.7C06-532 | 532nm | φ12.7mm | 6mm | 99.995％ | 20ppm |
| TFHSM-25C06-532 | 532nm | φ25mm | 6mm | 99.995％ | 20ppm |
| TFHSM-25.4C06-532 | 532nm | φ25.4mm | 6mm | 99.995％ | 20ppm |
| TFHSM-30C06-532 | 532nm | φ30mm | 6mm | 99.995％ | 20ppm |
| TFHSM-50C08-532 | 532nm | φ50mm | 8mm | 99.995％ | 20ppm |
| TFHSM-12.7C06-1064 | 1064nm | φ12.7mm | 6mm | 99.999％ | 8ppm |
| TFHSM-25C06-1064 | 1064nm | φ25mm | 6mm | 99.999％ | 8ppm |
| TFHSM-25.4C06-1064 | 1064nm | φ25.4mm | 6mm | 99.999％ | 8ppm |
| TFHSM-30C06-1064 | 1064nm | φ30mm | 6mm | 99.999％ | 8ppm |
| TFHSM-50C08-1064 | 1064nm | φ50mm | 8mm | 99.999％ | 8ppm |
*1 The above is the reflectance measured in the CRD method. However, there may vary depending on measurement conditions and measurement method.
*2 The values indicated in “Loss” is only reference data.These data will not be attached with the product
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