THz Windows
We offer THz windows made of crystal and polymer materials.
1. Crystals
1.1 HRFZ-Si Windows
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, scr/dig
60/40
Surface accuracy, mm
+/-0.01 deviation from ideal plane
Coating
AR coatings upon request
The following HRFZ-Si windows are available from stock:
No.
Diameter
Thickness, mm
mm
inches
1
25.4
1.0
1.0
2
38.1
1.5
1.0
3
50.8
2.0
1.0
4
76.2
3.0
1.0
5
101.6
4.0
1.0
1.2 THz Grade Crystal Quartz and THz Grade Saphhire Windows
Commom specification:
Material
THz grade crystal quartz (z-cut) and THz grade saphhire
Type
plano-plano
Dimensions tolerance, mm
±0.1
Clear apperture, %
>=90
Parallelism, arc. min
5
Surface quality, scr/dig
80/50
Surface accuracy, mm
±0.01 deviation from ideal plane
Coating (for crystal quartz)
AR coatings upon request
The following THz Grade Crystal Quartz windows are available from stock:
No. Diameter Thickness, mm mm inches 1 25.4 1.0 1.0, 2.0, and 3.0 2 38.1 1.5 1.0, 2.0, and 3.0 3 50.8 2.0 1.0, 2.0, and 3.0
Alternate sizes and custom designs are available upon request.
The following sizes of THz grade crystal quartzare are available:
- for crystals grown along Z-axis: X >=100 mm, Y>=150 mm and Z up to 35 mm;
- for crystals grown along X-axis: X up to 30 mm, Y>=100 mm and Z>=125 mm.THz grade sapphire windows are available upon request.
The finished parts of different dimensions are available from stock and supplied within a week.
2. Polymers
TPX
Commom specification:
Material
TPX
Type
plano-plano, wedged (wedge is 6 mrad)
Available diameters, mm
to 100
Dimensions tolerance,1mm
+ /-0.25
Clear apperture, %
>=90
Surface quality, scr/dig
80/50 (two-sided polishing)
Surface roughness
Rz 0.025
Surface accuracy, mm
±0.01 deviation from ideal plane
The following TPX windows are available from stock:
No. Diameter Thickness, mm mm inches 1 25.4 1.0 2.0 2 38.1 1.5 3.0 3 50.8 2.0 3.5
Custom sizes (max thickness 30 mm) are manufactured upon request.
The finished parts of different dimensions are available from stock and supplied within a week.
Please check the Optics stock.