mirrors for applications where THz radiation has to be fully reflected.
Commom specification:
| Material of substrate | Quartz glass
| | Type | plano-plano | | Dimensions tolerance,mm | +/-025 | | Clear apperture, % | >=90 | | Surface quality of polished surfaces, scr/dig | 40/20 | | Surface quality of ground surface, Ra | 2.5 | | Surface accuracy, λ@633nm | 1/4 | Coating
| protected gold
| Thickness of gold layer, nm
| ~400 |
|  |
Typical reflection curve is shown below. Measurements were made up to 1000 μm. However operating wavelength range is much wider.
Fig. Reflection od THz mirror.
The following THz mirrors are available from stock:
| No. | Diameter | Thickness, mm | | mm | inches | | 1 | 25.4 | 1.0 | 6.35 | | 2 | 38.1 | 1.5 | 6.35 | | 3 | 50.8 | 2.0 | 6.35 | | 4 | 76.2 | 3.0 | 6.35 |
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