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THz Windows

THz Windows

We offer THz windows made of crystal and polymer materials.

1. Crystals 

1.1 HRFZ-Si Windows

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 


Custom sizes are manufactured upon request.
The finished parts of different dimensions are available from stock and supplied within a week.
Please check the Optics stock.
For price quotation and delivery please fill in our Request form. 

1.2  THz Grade Crystal Quartz and THz Grade Saphhire Windows

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. 
Please check the Optics stock. 
For price quotation and delivery please fill in our Request form.

2. Polymers

TPX

Polymers

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. 

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