THz Mirrors
We offer mirrors for applications where THz radiation has to be fully reflected.
Commom specification:
Material of substrate
BK7
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
1/2
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