Wedged Substrate (Synthetic fused silica) / WSSQ_WSSQK
Wedged substrates can separate the reflected beam by the front and back surface of the substrates by the slight wedge angle. They can be used as a reference test plate for interferometers and beam samplers.
◦It can also be used as a prism to refract at a small angle. Beam deflection angle δ can be calculated refractive index n, from the wedge angle α.
δ ＝ sin−1（ n sinα） − α ≒（ n − 1） α
In BK7, 0.52 times the angle of the wedge, and in synthetic fused silica, 0.46 times the angle of the wedge. (Visible range, normal incidence)
Common Specifications
| Material | Synthetic fused silica (WSSQ) Synthetic fused silica for excimer laser (248nm) (WSSQK) |
 |
|---|---|---|
| Surface Quality (Scratch-Dig) | 20 - 10 | |
| Clear Aperture | 90% of the diameter |
| Schematic | Outline Drawing |
|---|---|
 |
 |
| Part Number | Diameter φD |
Thickness t |
Surface Flatness | Wedge Angle W |
Material |
|---|---|---|---|---|---|
| WSSQ-10C05-10-1 | φ10 | 5 | λ/10 | 1°±5′ | Synthetic fused silica |
| WSSQ-10C05-20-1 | φ10 | 5 | λ/20 | 1°±5′ | Synthetic fused silica |
| WSSQ-15C05-10-1 | φ15 | 5 | λ/10 | 1°±5′ | Synthetic fused silica |
| WSSQ-15C05-20-1 | φ15 | 5 | λ/20 | 1°±5′ | Synthetic fused silica |
| WSSQ-20C05-10-1 | φ20 | 5 | λ/10 | 1°±5′ | Synthetic fused silica |
| WSSQ-20C05-20-1 | φ20 | 5 | λ/20 | 1°±5′ | Synthetic fused silica |
| WSSQ-25C05-10-1 | φ25 | 5 | λ/10 | 1°±5′ | Synthetic fused silica |
| WSSQ-25C05-20-1 | φ25 | 5 | λ/20 | 1°±5′ | Synthetic fused silica |
| WSSQ-30C05-10-0.5 | φ30 | 5 | λ/10 | 0.5°±5′ | Synthetic fused silica |
| WSSQ-30C05-20-0.5 | φ30 | 5 | λ/20 | 0.5°±5′ | Synthetic fused silica |
| WSSQ-30C05-10-1 | φ30 | 5 | λ/10 | 1°±5′ | Synthetic fused silica |
| WSSQ-30C05-20-1 | φ30 | 5 | λ/20 | 1°±5′ | Synthetic fused silica |
| WSSQ-30C05-10-2 | φ30 | 5 | λ/10 | 2°±5′ | Synthetic fused silica |
| WSSQ-30C05-20-2 | φ30 | 5 | λ/20 | 2°±5′ | Synthetic fused silica |
| WSSQ-30C07-10-3 | φ30 | 7 | λ/10 | 3°±5′ | Synthetic fused silica |
| WSSQ-30C07-20-3 | φ30 | 7 | λ/20 | 3°±5′ | Synthetic fused silica |
| WSSQ-40C06-10-1 | φ40 | 6 | λ/10 | 1°±5′ | Synthetic fused silica |
| WSSQ-40C06-20-1 | φ40 | 6 | λ/20 | 1°±5′ | Synthetic fused silica |
| WSSQ-50C08-10-0.5 | φ50 | 8 | λ/10 | 0.5°±5′ | Synthetic fused silica |
| WSSQ-50C08-20-0.5 | φ50 | 8 | λ/20 | 0.5°±5′ | Synthetic fused silica |
| WSSQ-50C08-10-1 | φ50 | 8 | λ/10 | 1°±5′ | Synthetic fused silica |
| WSSQ-50C08-20-1 | φ50 | 8 | λ/20 | 1°±5′ | Synthetic fused silica |
| WSSQ-50C08-10-2 | φ50 | 8 | λ/10 | 2°±5′ | Synthetic fused silica |
| WSSQ-50C08-20-2 | φ50 | 8 | λ/20 | 2°±5′ | Synthetic fused silica |
| WSSQ-50C10-10-3 | φ50 | 10 | λ/10 | 3°±5′ | Synthetic fused silica |
| WSSQ-50C10-20-3 | φ50 | 10 | λ/20 | 3°±5′ | Synthetic fused silica |
| WSSQ-60C10-10-1 | φ60 | 10 | λ/10 | 1°±5′ | Synthetic fused silica |
| WSSQ-60C10-20-1 | φ60 | 10 | λ/20 | 1°±5′ | Synthetic fused silica |
| WSSQ-80C12-10-1 | φ80 | 12 | λ/10 | 1°±5′ | Synthetic fused silica |
| WSSQ-80C12-20-1 | φ80 | 12 | λ/20 | 1°±5′ | Synthetic fused silica |
| WSSQ-100C15-10-1 | φ100 | 15 | λ/10 | 1°±5′ | Synthetic fused silica |
| WSSQ-100C15-20-1 | φ100 | 15 | λ/20 | 1°±5′ | Synthetic fused silica |
| WSSQK-30C05-10-1 | φ30 | 5 | λ/10 | 1°±5′ | Synthetic fused silica for excimer laser |
| WSSQK-50C08-10-1 | φ50 | 8 | λ/10 | 1°±5′ | Synthetic fused silica for excimer laser |
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