Silicon (Si) Windows - Uncoated & AR Coated
UQG Optics optical grade Silicon Windows are made from the Czochralski method producing Silicon 99.9% pure. It has a transmission range of 1.2 to 8 microns (uncoated) but for 9 microns it has a strong absorption band which is fine for using at 3-5 microns, after this float zone silicon can be supplied which does not have this absorption. The material has many benefits being a low cost material, perfect for weight delicate applications due to its low density and making it harder and less brittle than germanium. Widely used for military, imaging, scientific industries and substrates for optical coatings.
UQG Optics stock Silicon Windows come in diameters uncoated or AR coated in 3-5 microns both sides. Our custom range has the options of coatings and designs to the window.
Please contact our sales team or view all our IR Windows.
View RoHS Statement
| Dimensions: | Diameters 5mm to 200mm Squares/Rectangles: 5mm to 140mm |
| Squares/Rectangles: 5mm to 140mm | |
| Thickness Range: | 0.5mm to 25mm (subject to dimension) |
| Edge Finish: | Ground or polished |
| Surface Quality: | 80/50 to 20/10 scratch/Dig |
| Parallelism: | Up to 1 arc minute |
| Material Options: | Float zone N or P type; purity > 6N, orientations <100> or <111>, resistivity >100 ohm, uncoated 55-57% @3-5 microns, Polycrystalline, Monocrystalline & EMI grade lower resistivity |
| Coating Options: | AR coatings from 1-8 microns & bandpass coatings |
| Options: | Drilled holes, shapes, wedges, squares & rectangles |
| Orientation: | <100> |
Please contact us for discount pricing for stock parts over 10+ and volume/OEM quantities.
Part numbers listed with enquire, please contact us for prices & delivery times.
Select Your Currency:
| Part No | Data sheet |
Description | Thickness (mm) | Dimensions (mm) | Unit price (1-10) excl. VAT |
Qty |
Qty (10+)Volume pricing available for 10+, please add to quote. |
|---|---|---|---|---|---|---|---|
| OSW-101 | Silicon Window (uncoated) | 1 | Ø 10 | £12.00 | |||
| OSW-1251 | Silicon Window (uncoated) | 1 | Ø 12.50 | £13.00 | |||
| OSW-1252 | Silicon Window (uncoated) | 2 | Ø 12.50 | £15.50 | |||
| OSW-151 | Silicon Window (uncoated) | 1 | Ø 15 | £14.00 | |||
| OSW-201 | Silicon Window (uncoated) | 1 | Ø 20 | £15.00 | |||
| OSW-221 | Silicon Window (uncoated) | 1 | Ø 22 | £19.00 | |||
| OSW-251 | Silicon Window (uncoated) | 1 | Ø 25 | £16.00 | |||
| OSW-252 | Silicon Window (uncoated) | 2 | Ø 25 | £17.00 | |||
| OSW-253 | Silicon Window (uncoated) | 3 | Ø 25 | £18.00 | |||
| OSW-254 | Silicon Window (uncoated) | 1 | Ø 25.4 | £17.00 | |||
| OSW-501 | Silicon Window (uncoated) | 1 | Ø 50 | £85.00 | |||
| OSW-502 | Silicon Window (uncoated) | 2 | Ø 50 | £85.00 | |||
| OSW-503 | Silicon Window (uncoated) | 3 | Ø 50 | £80.00 | |||
| SWC-101 | Silicon Window (AR 3-5 microns) | 1 | Ø 10 | £55.00 | |||
| SWC-1251 | Silicon Window (AR 3-5 microns) | 1 | Ø 12.50 | £72.00 | |||
| SWC-251 | Silicon Window (AR 3-5 microns) | 1 | Ø 25 | £80.00 | |||
| SWC-253 | Silicon Window (AR 3-5 microns) | 3 | Ø 25 | £85.00 | |||
| SWC-503 | Silicon Window (AR 3-5 microns) | 3 | Ø 50 | £190.00 |
Part Number
OSW-101
Silicon Window (uncoated)
PDF Data sheet
Thickness (mm) 1
Dimensions (mm) Ø 10
Focal Length (mm) 0
UNIT PRICE (1-10)
£12.00 Inc. VAT
Part Number
OSW-1251
Silicon Window (uncoated)
PDF Data sheet
Thickness (mm) 1
Dimensions (mm) Ø 12.50
UNIT PRICE (1-10)
£13.00 Inc. VAT
Part Number
OSW-1252
Silicon Window (uncoated)
PDF Data sheet
Thickness (mm) 2
Dimensions (mm) Ø 12.50
UNIT PRICE (1-10)
£15.50 Inc. VAT
Part Number
OSW-151
Silicon Window (uncoated)
PDF Data sheet
Thickness (mm) 1
Dimensions (mm) Ø 15
Focal Length (mm) 0
UNIT PRICE (1-10)
£14.00 Inc. VAT
Part Number
OSW-201
Silicon Window (uncoated)
PDF Data sheet
Thickness (mm) 1
Dimensions (mm) Ø 20
Focal Length (mm) 0
UNIT PRICE (1-10)
£15.00 Inc. VAT
Part Number
OSW-221
Silicon Window (uncoated)
PDF Data sheet
Thickness (mm) 1
Dimensions (mm) Ø 22
Focal Length (mm) 0
UNIT PRICE (1-10)
£19.00 Inc. VAT
Part Number
OSW-251
Silicon Window (uncoated)
PDF Data sheet
Thickness (mm) 1
Dimensions (mm) Ø 25
Focal Length (mm) 0
UNIT PRICE (1-10)
£16.00 Inc. VAT
Part Number
OSW-252
Silicon Window (uncoated)
PDF Data sheet
Thickness (mm) 2
Dimensions (mm) Ø 25
UNIT PRICE (1-10)
£17.00 Inc. VAT
Part Number
OSW-253
Silicon Window (uncoated)
PDF Data sheet
Thickness (mm) 3
Dimensions (mm) Ø 25
UNIT PRICE (1-10)
£18.00 Inc. VAT
Part Number
OSW-254
Silicon Window (uncoated)
PDF Data sheet
Thickness (mm) 1
Dimensions (mm) Ø 25.4
Focal Length (mm) 0
UNIT PRICE (1-10)
£17.00 Inc. VAT
Part Number
OSW-501
Silicon Window (uncoated)
PDF Data sheet
Thickness (mm) 1
Dimensions (mm) Ø 50
UNIT PRICE (1-10)
£85.00 Inc. VAT
Part Number
OSW-502
Silicon Window (uncoated)
PDF Data sheet
Thickness (mm) 2
Dimensions (mm) Ø 50
UNIT PRICE (1-10)
£85.00 Inc. VAT
Part Number
OSW-503
Silicon Window (uncoated)
PDF Data sheet
Thickness (mm) 3
Dimensions (mm) Ø 50
UNIT PRICE (1-10)
£80.00 Inc. VAT
Part Number
SWC-101
Silicon Window (AR 3-5 microns)
PDF Data sheet
Thickness (mm) 1
Dimensions (mm) Ø 10
UNIT PRICE (1-10)
£55.00 Inc. VAT
Part Number
SWC-1251
Silicon Window (AR 3-5 microns)
PDF Data sheet
Thickness (mm) 1
Dimensions (mm) Ø 12.50
UNIT PRICE (1-10)
£72.00 Inc. VAT
Part Number
SWC-251
Silicon Window (AR 3-5 microns)
PDF Data sheet
Thickness (mm) 1
Dimensions (mm) Ø 25
UNIT PRICE (1-10)
£80.00 Inc. VAT
Part Number
SWC-253
Silicon Window (AR 3-5 microns)
PDF Data sheet
Thickness (mm) 3
Dimensions (mm) Ø 25
UNIT PRICE (1-10)
£85.00 Inc. VAT
Part Number
SWC-503
Silicon Window (AR 3-5 microns)
PDF Data sheet
Thickness (mm) 3
Dimensions (mm) Ø 50
UNIT PRICE (1-10)
£190.00 Inc. VAT
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