T-BSW20R - 25 x 36 mm 50:50 UVFS Plate Beamsplitter, Coating: 250 - 450 nm, t = 1 mm
| Damage Threshold Specifications |
| Item |
Damage Threshold |
| 50:50 UVFS Beamsplitters |
4 J/cm2 (355 nm, 10 ns, 10 Hz, Ø0.165 mm) |
| 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
|
| Size |
25 mm x 36 mm |
| Diameter Tolerance |
±0.1 mm |
| Thickness |
1.0 mm |
| Thickness Tolerance |
±0.1 mm |
| Transmitted Wavefront Errorb
|
λ/4 @ 633 nm |
| Coating on Surface 1c
|
250 - 450 nm Beamsplitter Coating for 45° Incidence |
| Coating on Surface 2c
|
Broadband AR Coating for 250 - 450 nm
(Ravg < 1.0% within Wavelength Range) |
| Wedge Angle |
None |
| Wedge Angle Tolerance |
None |
| Substrate |
UV Fused Silica |
| Clear Aperture |
>22.5 mm x 32.4 mm |
| Surface Quality |
40-20 Scratch-Dig |
| Item # |
Size |
Thickness |
Wedge Angle |
Split Ratio (R:T) |
Overall Performance |
| T-BSW19 |
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 |
| T-BSW20 |
Ø1" |
5.0 mm |
30 arcmin |
50:50 |
| T-BSW20R |
25 mm x 36 mm |
1.0 mm |
No Wedge |
50:50 |
