 1 |
1 TPX lenses and windows
|
Type |
Diameter,
mm |
|
|
Window |
25,4(1") |
|
|
38,1(1,5") |
|
|
50,8(2") |
|
|
Lens |
25,4(1") |
|
|
38,1(1,5") |
|
|
50,8(2") |
|
*Standard focal lengths of TPX lenses:
--25, 50, 100, 200 mm for diameter 25,4mm(1")
--50, 75, 100, 150, 200 mm for diameters 38,1mm(1,5") and 50,8mm(2")
2 高通太赫兹滤波片 Long-pass THz filters
|
Diameter,
mm |
|
|
25,4(1") |
|
|
38,1(1,5") |
|
|
50,8(2") |
|
The filters are sold mounted with standard dimensions of 1”, 1.5” and 2”.
3 太赫兹波片THz wave plates
标准型号：尺寸20×20mm（分为半波片入/2、1/4波片）
对应波长：35、76、90.5、148、280、385、496 µm
THz波片详细参数和标准型号表：
|
Material |
crystal quartz |
|
Orientation |
X-cut (Z-axis and Y-axis are in plane
and parallel to the sides of plate) |
|
Orientation tolerance, arc. min. |
+/-10 |
|
Size, mm |
20 x 20 (+/-0.25) |
|
Clear aperture, % |
≥90 |
|
Parallelism, arc.sec. |
5 |
|
Thickness tolerance, mm |
+/- 1.0 |
|
Surface quality, scr/dig |
60/40 |
|
TWD, L@633nm |
1/2 |
|
№ |
Waveplate
thickness, mm |
Operating
wavelength, µm |
Retardation
type, λ |
|
1 |
0.412 |
35 |
1/2 |
|
2 |
0.826 |
76 |
|
3 |
0.984 |
90 |
|
4 |
1.721 |
148 |
|
5 |
3.256 |
280 |
|
6 |
4.477 |
385 |
|
7 |
5.767 |
496 |
|
8 |
0.206 |
35 |
1/4 |
|
9 |
0.413 |
76 |
|
10 |
0.492 |
90 |
|
11 |
0.860 |
148 |
|
12 |
1.628 |
280 |
|
13 |
2.238 |
385 |
|
14 |
2.884 |
496 |
Russian
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