THz Beam Splitters
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Download THz Beam Splitters Datasheet (PDF, 124 KB) |
We offer THz beam splitters of 2 types:
- single-pass beam splitter. It is used in optical schemes where radiation passes through beam splitter one time;
- multi-pass beam splitter for interferometer scheme where beam passes throughsplitter several times.
The material of THz beam splitter is HRFZ-Si. These beam splitters provide transmittance/reflectance ratio about 54/46 (%) in the wide wavelength range without any coating.
Reflection and transmission curves are shown below.
Fig. 1. HRFZ-Si transmission and reflection (sample thickness - 5 mm).
1. Single-pass THz Beam Splitter
The specification for the single-pass beam splitter is the same as for a HRFZ-Si window. In fact plano-plano HRFZ-Si window could be used as single-pass beam splitter.
Commom specification:
| Material | HRFZ-Si |
| Type | plano-plano |
| Available sizes, mm | to 150 |
| Diameter or cross-cut tolerance,mm | +0.0 /-0.1 |
| Thickness tolerance, mm | +/0.1 |
| Clear apperture, % | >=90 |
| Parallelism, arc. min | 3 |
| Surface quality (two-sided polishing), scr/dig | 60/40 |
| Surface accuracy, mm | +/-0.01 deviation from ideal plane |
The finished parts of different dimensions are available from stock and supplied within a week.
Please check the Optics stock.
Custom sizes are manufactured upon request.
For price quotation and delivery please fill in our Request form.
2. Multi-pass THz Beam Splitter
The multi-pass beam splitter (for interferometers) as opposed to a single-pass beam splitter should be produced with a high accuracy.
Commom specification:
| Material | HRFZ-Si |
| Type | plano-plano |
| Available sizes, mm | to 150 |
| Diameter or cross-cut tolerance,mm | +0.0 /-0.1 |
| Thickness tolerance, mm | +/-0.01 |
| Clear apperture, % | >=90 |
| Parallelism, arc. sec | 5 |
| Surface quality (two-sided polishing), scr/dig |
60/40 |
| Surface accuracy, λ@633 nm | 1 |
The following multi-pass THz beam splitters are available from stock:
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Please check the Optics stock. Custom sizes are manufactured upon request.
For price quotation and delivery please fill in our Request form.
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