mirrors for applications where THz radiation has to be fully reflected.
Commom specification:
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| 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, ??633nm | 1/4 | Coating
| protected gold
| Thickness of gold layer, nm
| ~400 |
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Typical reflection curve is shown below. Measurements were made up to 1000 ??. However operating wavelength range is much wider.
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Fig. Reflection od THz mirror.
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The following THz mirrors are available from stock:
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| 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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