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Germanium (Ge) Windows & Plates - Uncoated & AR/AR - AR DLC Coated

Germanium Windows with excellent transmission across 2-14 µm waveband and can be used in both mid-wave infrared (IR) and long wave IR systems. Germanium is a widely used material for IR windows and lenses in thermal imaging systems.

This high density window has a thermal escape which makes the transmission reduce as the temperature of the window increases. Germanium Windows are commonly used in defence and aerospace industries, life and medical sciences, industrial OEM and many other infrared applications.

UQG Optics stock 3 types of Germanium windows, uncoated, AR both sides coated and AR/DLC coated in a range of sizes. Our custom range involves an option of squares/rectangles, materal, shapes and much more.

Please contact our sales team or view all our IR Windows.

View RoHS Statement

Dimensions:	Monocrystalline diameters 5mm to 300mm
	Polycrystalline diameters 5mm to 380mm
	Squares/Rectangles up to 200mm x 200mm
Thickness:	0.50mm to 20mm (subject to Dimension)
Surface Flatness:	Up to lambda 4 (@633nm)
Material Options:	Polycrystalline
Coating Options:	AR coatings 3-14 microns
	DLC-Diamond coatings
Options;	Bevels, holes, wedges & shapes

Purchase OEM production quantities?
Ask UQG for a quote we are a major single source supply chain global supplier.

Material:

Germanium-Optical Grade-Monocrystalline

(N-Type, 5-40 ohm cm resistivity)

Diameter Tolerance:

+.00/-0.10mm

Thickness Tolerance:

± 0.10mm

Edge Finish:

Fine ground

Surface Quality:

60/40 Scratch/Dig

Surface Flatness:

≤ 5 Fringes (@633nm)

Parallelism:

≤ 3 Arc mins

Purity:

>99.9999%

Orientation:

<111>

Transmission Range:

IR 7-14 microns

Coating Specification:

AR/DLC

AR coated one side 7-14

Microns is a blue/pink/purple colour

2nd side DLC is black/dark grey colour

(hard diamond like carbon coating) Tavg > 80%

AR/AR

7-14 Microns Tavg > 85%

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.

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Part No	Data sheet	Description	Dimensions (mm)	Thickness (mm)	Unit price (1-10) excl. VAT	Qty	Qty (10+)Volume pricing available for 10+, please add to quote.
GOW-081	PDF	Germanium Windows (uncoated)	Ø 8	1	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GOW-101	PDF	Germanium Windows (uncoated)	Ø10	1	£15.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-102	PDF	Germanium Windows (uncoated)	Ø 10	2	£17.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-151	PDF	Germanium Windows (uncoated)	Ø 15	1	£17.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-201	PDF	Germanium Windows (uncoated)	Ø 20	1	£29.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-251	PDF	Germanium Windows (uncoated)	Ø 25	1	£31.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-252	PDF	Germanium Windows (uncoated)	Ø 25	2	£45.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-253	PDF	Germanium Windows (uncoated)	Ø 25	3	£62.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-254	PDF	Germanium Windows (uncoated)	Ø 25.4	1	£31.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-404	PDF	Germanium Windows (uncoated)	Ø 40	4	£200.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GOW-503	PDF	Germanium Windows (uncoated)	Ø 50	3	£232.00	QTY Germanium Windows (uncoated) quantity	Added to Quote
GEW-101	PDF	Ge Window AR + AR 7-14 microns	Ø 10	1	£55.00	QTY Ge Window AR + AR 7-14 microns quantity	Added to Quote
GEW-102	PDF	Ge Window AR + AR 7-14 microns	Ø 10	2	£60.00	QTY Ge Window AR + AR 7-14 microns quantity	Added to Quote
GEW-125	PDF	Ge Window AR + AR 7-14 microns	Ø 12.50	1	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GEW-151	PDF	Ge Window AR + AR 7-14 microns	Ø 15	1	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GEW-202	PDF	Ge Window AR + AR 7-14 microns	Ø 20	2	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GEW-251	PDF	Ge Window AR + AR 7-14 microns	Ø 25	1	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GEW-252	PDF	Ge Window AR + AR 7-14 microns	Ø 25	2	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GEW-235	PDF	Ge Window AR + AR 7-14 microns	Ø 25	3	£110.00	QTY Ge Window AR + AR 7-14 microns quantity	Added to Quote
GEW-404	PDF	Ge Window AR+ AR 7-14 microns	Ø 40	4	£225.00	QTY Ge Window AR+ AR 7-14 microns quantity	Added to Quote
GEW-403	PDF	Ge Window AR+ AR 7-14 microns	Ø 40	3	£220.00	QTY Ge Window AR+ AR 7-14 microns quantity	Added to Quote
GEW-502	PDF	Ge Window AR + AR 7-14 microns	Ø 50	2	£250.00	QTY Ge Window AR + AR 7-14 microns quantity	Added to Quote
GEW-503	PDF	Ge Window AR + AR 7-14 microns	Ø 50	3	£255.00	QTY Ge Window AR + AR 7-14 microns quantity	Added to Quote
GCW-101		Ge Windows AR/DLC 7-14 microns	Ø 10	1	£50.00	QTY Ge Windows AR/DLC 7-14 microns quantity	Added to Quote
GCW-102	PDF	Ge Windows AR/DLC 7-14 microns	Ø 10	2	£55.00	QTY Ge Windows AR/DLC 7-14 microns quantity	Added to Quote
GCW-253	PDF	Ge Windows AR/DLC 7-14 microns	Ø 25	3	£110.00	QTY Ge Windows AR/DLC 7-14 microns quantity	Added to Quote
GCW-252	PDF	Ge Windows AR/DLC 7-14 microns	Ø 25	2	£140.00	QTY Ge Windows AR/DLC 7-14 microns quantity	Added to Quote
GEP-551	PDF	Ge Plates AR + AR 7-14 microns	5 x 5	1	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GEP-1012	PDF	Ge Plates AR + AR 7-14 microns	10 x 10	2	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GCP-551		Ge Plates AR/DLC 7-14 microns	5 x 5	1	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GCP-102	PDF	Ge Plates AR/DLC 7-14 microns	10 x 10	2	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GCP-3034	PDF	Ge Window AR/DLC 7-14 microns	30 x 30	4	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GCW-251	PDF	Ge Windows AR/DLC 7-14 microns	Ø 25	1	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GCW-403	PDF	Ge Windows AR/DLC 7-14 microns	Ø 40	3	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GCW-503	PDF	Ge Windows AR/DLC 7-14 microns	Ø 50	3	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GCW-5010	PDF	Ge Windows AR/DLC 7-14 microns	Ø 50	10	Use Part Enquiry button to request quote	Part Enquiry	Added to Quote
GCW-753	PDF	Ge Windows AR/DLC 7-14 microns	Ø 75	3	£850.00	QTY Ge Windows AR/DLC 7-14 microns quantity	Added to Quote

Part Number

GOW-081

Germanium Windows (uncoated)

PDF Data sheet

Dimensions (mm) Ø 8

Thickness (mm) 1

Part Enquiry

Part Number

GOW-101

Germanium Windows (uncoated)

PDF Data sheet

Dimensions (mm) Ø10

Thickness (mm) 1

UNIT PRICE (1-10)

£15.00 Inc. VAT

Part Number

GOW-102

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 10

UNIT PRICE (1-10)

£17.00 Inc. VAT

Part Number

GOW-151

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 15

UNIT PRICE (1-10)

£17.00 Inc. VAT

Part Number

GOW-201

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 20

UNIT PRICE (1-10)

£29.00 Inc. VAT

Part Number

GOW-251

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 25

UNIT PRICE (1-10)

£31.00 Inc. VAT

Part Number

GOW-252

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 25

UNIT PRICE (1-10)

£45.00 Inc. VAT

Part Number

GOW-253

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 25

UNIT PRICE (1-10)

£62.00 Inc. VAT

Part Number

GOW-254

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 25.4

UNIT PRICE (1-10)

£31.00 Inc. VAT

Part Number

GOW-404

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 4

Dimensions (mm) Ø 40

UNIT PRICE (1-10)

£200.00 Inc. VAT

Part Number

GOW-503

Germanium Windows (uncoated)

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 50

UNIT PRICE (1-10)

£232.00 Inc. VAT

Part Number

GEW-101

Ge Window AR + AR 7-14 microns

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 10

UNIT PRICE (1-10)

£55.00 Inc. VAT

Part Number

GEW-102

Ge Window AR + AR 7-14 microns

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 10

UNIT PRICE (1-10)

£60.00 Inc. VAT

Part Number

GEW-125

Ge Window AR + AR 7-14 microns

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 12.50

Part Enquiry

Part Number

GEW-151

Ge Window AR + AR 7-14 microns

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 15

Part Enquiry

Part Number

GEW-202

Ge Window AR + AR 7-14 microns

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 20

Part Enquiry

Part Number

GEW-251

Ge Window AR + AR 7-14 microns

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 25

Part Enquiry

Part Number

GEW-252

Ge Window AR + AR 7-14 microns

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 25

Part Enquiry

Part Number

GEW-235

Ge Window AR + AR 7-14 microns

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 25

UNIT PRICE (1-10)

£110.00 Inc. VAT

Part Number

GEW-404

Ge Window AR+ AR 7-14 microns

PDF Data sheet

Thickness (mm) 4

Dimensions (mm) Ø 40

UNIT PRICE (1-10)

£225.00 Inc. VAT

Part Number

GEW-403

Ge Window AR+ AR 7-14 microns

PDF Data sheet

Dimensions (mm) Ø 40

Thickness (mm) 3

UNIT PRICE (1-10)

£220.00 Inc. VAT

Part Number

GEW-502

Ge Window AR + AR 7-14 microns

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 50

UNIT PRICE (1-10)

£250.00 Inc. VAT

Part Number

GEW-503

Ge Window AR + AR 7-14 microns

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 50

UNIT PRICE (1-10)

£255.00 Inc. VAT

Part Number

GCW-101

Ge Windows AR/DLC 7-14 microns

Thickness (mm) 1

Dimensions (mm) Ø 10

UNIT PRICE (1-10)

£50.00 Inc. VAT

Part Number

GCW-102

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 10

UNIT PRICE (1-10)

£55.00 Inc. VAT

Part Number

GCW-253

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 25

UNIT PRICE (1-10)

£110.00 Inc. VAT

Part Number

GCW-252

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 2

Dimensions (mm) Ø 25

UNIT PRICE (1-10)

£140.00 Inc. VAT

Part Number

GEP-551

Ge Plates AR + AR 7-14 microns

PDF Data sheet

Dimensions (mm) 5 x 5

Thickness (mm) 1

Part Enquiry

Part Number

GEP-1012

Ge Plates AR + AR 7-14 microns

PDF Data sheet

Dimensions (mm) 10 x 10

Thickness (mm) 2

Part Enquiry

Part Number

GCP-551

Ge Plates AR/DLC 7-14 microns

Dimensions (mm) 5 x 5

Thickness (mm) 1

Part Enquiry

Part Number

GCP-102

Ge Plates AR/DLC 7-14 microns

PDF Data sheet

Dimensions (mm) 10 x 10

Thickness (mm) 2

Part Enquiry

Part Number

GCP-3034

Ge Window AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 4

Dimensions (mm) 30 x 30

Part Enquiry

Part Number

GCW-251

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 1

Dimensions (mm) Ø 25

Part Enquiry

Part Number

GCW-403

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 40

Part Enquiry

Part Number

GCW-503

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 50

Part Enquiry

Part Number

GCW-5010

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 10

Dimensions (mm) Ø 50

Part Enquiry

Part Number

GCW-753

Ge Windows AR/DLC 7-14 microns

PDF Data sheet

Thickness (mm) 3

Dimensions (mm) Ø 75

UNIT PRICE (1-10)

£850.00 Inc. VAT

Germanium (Ge) Windows & Plates - Uncoated & AR/AR - AR DLC Coated

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