T-BSW25 - Ø1/2" 50:50 UVFS Plate Beamsplitter, Coating: 350 - 1100 nm, t = 3.0 mm
T-BSW25 - Ø1/2" 50:50 UVFS Plate Beamsplitter, Coating: 350 - 1100 nm, t = 3.0 mm
- Beamsplitter Coating on Front Surface: 350 - 1100 nm
- Optimized for 50:50 Beamsplitting for a 45° Angle of Incidence (AOI)
- Antireflection (AR) Coating on Back Surface: 350 - 1100 nm
- Ø1/2", Ø1", 25 mm x 36 mm, and Ø2" Versions Available
| Damage Threshold Specifications | ||
|---|---|---|
| Item # | Damage Threshold | |
| T-BSW2x | CW | 250 W/cm (532 nm, Ø684 µm) |
| Pulsed | 10 J/cm2 (810 nm, 10 ns, 10 Hz, Ø130 µm) | |
| Item # | Size | Thickness | Wedge Angle | Split Ratio (R:T) | Overall Performance |
|---|---|---|---|---|---|
| T-BSW25 | Ø1/2" | 3.0 mm | 30 arcmin | 50:50 | Tabs = 50 ± 12%, Rabs = 50 ± 12%, Tabs + Rabs > 99%, |Ts-Tp| < 40% and |Rs-Rp| < 40%, 45° AOI |
| Specification | Value |
|---|---|
| Split Ratio (R:T) | 50:50 |
| Overall Performancea |
Tabs = 50 ± 12%, Rabs = 50 ± 12%, Tabs + Rabs > 99%, |Ts-Tp| < 40% and |Rs-Rp| < 40%, 45° AOI |
| Diameter | 1/2" |
| Diameter Tolerance | +0.0 mm / - 0.2 mm |
| Center Thickness | 3.0 mm |
| Thickness Tolerance | ±0.4 mm |
| Surface Flatness (Peak to Valley)b | <λ/4 @ 633 nm |
| Coating on Surface 1c | 350 - 1100 nm Beamsplitter Coating for 45° Incidence |
| Coating on Surface 2c | Broadband AR Coating for 350 - 1100 nm (Ravg < 2.0% within Wavelength Range) |
| Wedge Angle | 30 arcmin |
| Wedge Angle Tolerance | ±10 arcmin |
| Substrate | UV Fused Silica |
| Clear Aperture | >Ø11.43 mm |
| Surface Quality | 20-10 Scratch-Dig |