Tydex offers spectral splitters for applications where NIR and MIR radiation has to be reflected without transmission degradation in THz range.
NIR-THz spectral splitter is used for separation of pump radiation (centered in the wavelength range 790-800 nm) from THz radiation in Ti:Sapphire laser and MIR-THz spectral splitter – for separation of pump radiation (9.6 μm and 10.6 μm) from THz radiation in THz laser optically pumped by CO2 -laser.
Common specification:
|
Splitter Type |
| NIR-THz spectral splitter |
MIR-THz spectral splitter |
| Material of substarate |
- HRZF-Si
- THz-grade crystal quartz |
| Dimensions tolerance, mm |
+/-0.25 |
| Clear aperture, % |
90 |
| Surface quality, scr/dig |
60/40 |
| Surface accuracy, mm |
+/-0.01 deviation from ideal plane
|
| Coating |
High-reflection dielectric coating (R>90%) @ 730-860 nm |
High-reflection dielectric coating (R>90%) @ 9-11µm
|
| Angle of incidence, arc. grad. |
45 | |
Typical reflection and transmission curves are shown below
Fig.1 Reflection of NIR-THz spectral splitter (two types of substrate).
Fig.2 Transmission of NIR-THz spectral splitter (two types of substrate).
Fig.3 Reflection of MIR-THz spectral splitter (two types of substrate).
Fig.4 Transmission of MIR-THz spectral splitter (two types of substrate).
The following NIR-THz and MIR-THz Spectral Splitters are available from stock:
| No. |
Diameter |
Thickness, mm |
| mm |
inches |
| 1 |
25.4 |
1.0 |
1.0 |
| 2 |
50.8 |
2.0 |
1.0
|
|
Please check Optics stock.
Custom designs are available upon request.
For price quotation and delivery please fill in our Request Form.
