Online Catalogue

Browsе our online catalogue for LED, Optical, High Performance Sapphire Windows and Ti Sapphire sizes and pricing specifications

GT Crystal Systems is recognized as a leading producer of titanium doped Sapphire. Our Ti:Sapphire crystals are unparalleled in size, quality and laser amplification performance. The crystals are grown in our advanced Sapphire furnaces and leverage our 40 years of crystal process knowledge and expertise to produce the highest quality and performing material for the most demanding applications.

Brewster Cut HEM Ti:Sapphire For Amplifiers and Ultrafast Lasers

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Plano/Plano - Ends Coated HEM® Ti:Sapphire Amplifier

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Optical Substrate

HEM Sapphire is the leading material for highly sophisticated optical applications that require reliability, strength and a wide range of light transmittance. Sapphire transmits light over a broad wavelength range spanning from 0.15 to 5 microns.

Standard Optical Windows: 1" Diameter

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Standard Optical Windows: 1.5" Diameter

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Standard Optical Windows: 1.75" Diameter

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Standard Optical Windows: 2" Diameter

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Standard Optical Windows: 2.5" Diameter

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LED Substrate

GTAT provides a wide range of high quality Sapphire substrate materials to produce EPI-ready wafers.

Single side polished: front side epi; backside fine ground

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Double side polished: front side epi; backside 80-50 optical polish

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Single side polished: front side epi; backside fine ground

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Double side polished: both sides epi

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Speciality Sapphire

GT Crystal Systems Sapphire is recognized as the highest commercial quality Sapphire available with excellent optical, mechanical and transmission properties.

Hemlux Sapphire Windows, 10mm Diameter

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Hemlux Sapphire Windows, 12.7 mm Diameter

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Hemlux Sapphire Windows, 20 mm Diameter

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Hemlux Sapphire Windows, 25.4 mm Diameter

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Contact one of our product experts to find out how crystals grown with our Heat Exchanger Method can benefit your company’s operations.
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Grade	Highly Uniform crystalline HEM Grown Ti: Sapphire crystals
Polish Type	Laser Polish (10-5 or better Brewster's angle Ends)
Sapphire Purity
Orientation	90°
Flatness	L/10 flatness @632nm
Outside Diameter Surface	Fine Ground
TWE	L/4 P-V @632nm to minimize spatial variation and maximize beam quality

Diameter	PL (mm)	Alpha @532nm	LPSP @532nm	FOM	Qty 1 and Up
3.0mm x 3.0mm	4.8	~3.50cm-1	~81%	> 200	$1,490
3.0mm x 3.0mm	2.9	~7.00cm-1	~87%	> 100	$1,580
1.5mm x 3.0mm	5	~5.00cm-1	~92%	> 150	$1,540
4.0mm x 6.0mm	4	~5.50cm-1	~89%	> 150	$1,580
2.0mm x 4.0mm	23	~1.05cm-1	~91%	> 400	$1,590
4.0mm x 4.0mm	20	~1.40cm-1	~94%	> 375	$1,800
5.0mm ø	5	~5.00cm-1	~92%	> 150	$1,630
5.0mm ø	20	~1.40cm-1	~94%	> 375	$1,940
6.2mm ø	20	~1.30cm-1	~93%	> 400	$2,150
6.3mm ø	25.4	~1.00cm-1	~92%	> 400	$2,200

Grade	HEM grown with highly uniform crystalline structure
Polish Type	Low Damage Super Polished faces, (Ra < 2 Å RMS)
Orientation	90°
Orientation	(1120) A-axis, ± 1°
Diameter Tolerance	± 0.1 mm
Flatness	L/10 flatness @632nm
Outside Diameter Surface	Fine Ground
TWE	L/4 P-V @632nm to minimize spatial variation and maximize beam quality
Coating	High Damage Threshold AR Coating
AR Coating Reflection	Click Here
Laser Damage Threshold Testing	Click Here

Diameter	PL (mm)	LPSP @532nm	QTY 1 and up
6mm ø	15	~92%	$2,900.00
8mm ø	15	~92%	$3,100.00
10mm ø	15	~92%	$3,500.00
15mm ø	15	~92%	$5,900.00
16mm ø	20	~92%	$7,500.00
16mm x 16mm	20	~92%	$15,600.00
20mm ø	20	~92%	$13,200
25mm ø	20	~92%	$16,800
30mm ø	20	~92%	$25,800
40mm ø	25	~92%	Call for price

Grade	Optical
Polish Type	80-50 (equivalent of one micro-inch)
Orientation	0°, 60°, 90° ± 2°
Diameter Tolerance	± 0.005"
Thickness Tolerance	± 0.002"
Flatness	10 waves per inch of diameter

Diameter (inches)	Thickness (inches)	Orienta-tion (°)	QTY 1-4	QTY 5-9	QTY 10-24	QTY 25+
1	0.04	0	$180	$52	$46	$44
1	0.04	60	$180	$50	$44	$42
1	0.04	90	$180	$50	$44	$42
1	0.078	0	$180	$58	$52	$48
1	0.078	60	$180	$58	$52	$48
1	0.078	90	$180	$54	$50	$46
1	0.125	0	$180	$63	$58	$54
1	0.125	60	$180	$60	$54	$52
1	0.125	90	$180	$60	$54	$52
1	0.25	0	$180	$144	$137	$129
1	0.25	60	$180	$142	$135	$126
1	0.25	90	$180	$142	$135	$126

Sapphire Substrate Size	2" Single- Sided	3" Single- Sided	4" Single- Sided
Grade	LED	LED	LED
Polish Type	(1) Side EPI	(1) Side EPI	(1) Side EPI
Sapphire Purity	>99.99%	>99.99%	>99.99%
Orientation	-1	-$1	-$1
C-axis	± 0.2°	± 0.15°	± 0.20°
Diameter	50.8 ± 0.25 mm	76.2mm ± 0.25 mm	100 ± 0.25 mm
Thickness	0.332 or 0.432 ± 0.025 mm	0.550 ± 0.025 mm	0.650 ± 0.025 mm
Primary Flat	(1120) A-axis ± 0.3°	(1120) A-axis ± 0.3°	(1120) A-axis ± 0.3°
Flat Length	16.0 ± 1.5 mm	22.0 mm ± 1.5 mm	32.0 ± 2.5 mm
Front Side Surface	EPI polished, (Ra) = 1 nm	EPI polished, (Ra) = 1 nm	EPI polished, (Ra) = 1 nm
Back Surface Roughness	Fine grind, Rmax	Fine Grind, Rmax	Fine Grind, 0.4 -
Ra	5-10 µm	5-10 µm	1.0 microns (Ra)
TTV	< 25 µm	< 30 µm	< 40 µm
BOW	< 20 µm	< 30 µm	< 30 µm
Packaging	Vacuum packed in cassettes of 5 in a class 100 clean room, under a nitrogen atmosphere. Cleanliness: Ready for EPI	Vacuum packed in Entegris cassette of (1) in a class 100 clean room, under a nitrogen atmosphere.	Vacuum packed in Entegris cassette of (1) in a class 100 clean room, under a nitrogen atmosphere.
Delivery	Standard Parts from stock. Subject to availability, otherwise 8 weeks	Standard parts from stock, subject to availability, otherwise 8-weeks	Standard parts from stock, subject to availability, otherwise 8-weeks

Diameter (mm)	Thickness (mm)	Orientation (°)	QTY 5	QTY 10	QTY 25	QTY 50
50.8 ± 0.25	0.33	0	$78	$73	$69	$65
50.8 ± 0.25	0.43	0	$78	$73	$69	$65
76.2 ± 0.25	0.55	0	$348	$337	$317	$298
100.0 ± 0.25	0.65	0	$462	$402	$354	$330

Sapphire Substrate Size	2" Double- Sided	3" Double- Sided	4" Double- Sided
Grade	LED	LED	LED
Polish Type	(2) sided polished EPI	(2) sided polished EPI	(2) sided polished EPI
Sapphire Purity	>99.99%	>99.99%	>99.99%
Orientation	-1	-$1	-$1
C-axis	± 0.2°	± 0.15°	± 0.20°
Diameter	50.8 ± 0.25 mm	76.2mm ± 0.25 mm	100 ± 0.25 mm
Thickness	0.332 or 0.432 ± 0.025 mm	0.550 ± 0.025 mm	0.650 ± 0.025 mm
Primary Flat	(1120) A-axis ± 0.3°	(1120) A-axis ± 0.3°	(1120) A-axis ± 0.3°
Flat Length	16.0 ± 1.5 mm	22.0 mm ± 1.5 mm	32.0 ± 2.5 mm
Front Side Surface	EPI polished, (Ra) = 1 nm	EPI polished, (Ra) = 1 nm	EPI polished, (Ra) = 1 nm
Back Surface Roughness	80-50 or better backside	80-50 or better backside	80-50 or better backside
Ra	5-10 µm	5-10 µm	1.0 microns (Ra)
TTV	< 25 µm	< 30 µm	< 40 µm
BOW	< 20 µm	< 30 µm	< 30 µm
Packaging	Vacuum packed in cassettes of 5 in a class 100 clean room, under a nitrogen atmosphere. Cleanliness: Ready for EPI	Vacuum packed in Entegris cassette of (1) in a class 100 clean room, under a nitrogen atmosphere.	Vacuum packed in Entegris cassette of (1) in a class 100 clean room, under a nitrogen atmosphere.
Delivery	Standard Parts from stock. Subject to availability, otherwise 8 weeks	Standard parts from stock, subject to availability, otherwise 8-weeks	Standard parts from stock, subject to availability, otherwise 8-weeks

Sapphire Substrate Size	10mm X 10mm X .432 mm Single-Sided	25.4mm X 25.4mm X .500mm Single-Sided
Grade	LED	LED
Polish Type	EPI	Single sided EPI Ready
Sapphire Purity	>99.99%	>99.99%
Orientation	-1	-1
C-axis	± 0.2°	± 0.2°
Thickness	0.432mm	0.500mm
Front Side Surface	EPI polished, (Ra) = 1 nm	EPI polished, (Ra) = 1 nm
Back Surface Roughness	Fine grind, Rmax 5-10 µm	EPI
Packaging	Vacuum packed in cassettes of (1) in a class 100 clean room, under a nitrogen atmosphere. Cleanliness: Ready for EPI	Vacuum packed in cassettes of (1) in a class 100 clean room, under a nitrogen atmosphere. Cleanliness: Ready for EPI
Delivery	Standard Parts from stock, subject to availability, otherwise 8 weeks	Standard Parts from stock, subject to availability, otherwise 8 weeks

ength/Width (mm)	Thickness (mm)	Orientation (°)	QTY 1-4	QTY 5	QTY 10	QTY 25
10 x 10	0.432	0	$60	$50	$48	$46
25.4 x 25.4	0.5	0	$60	$50	$48	$46

Sapphire Substrate Size	10mm X 10mm X .432 mm Double-Sided	25.4mm X 25.4mm X .500mm Double-Sided
Grade	LED	LED
Polish Type	Double-sided EPI	Double sided EPI Ready
Sapphire Purity	>99.99%	>99.99%
Orientation	-1	-1
C-axis	± 0.2°	± 0.2°
Thickness	0.432mm	0.500mm
Front Side Surface	EPI polished, (Ra) = 1 nm	EPI polished, (Ra) = 1 nm
Back Surface Roughness	EPI	EPI
Packaging	Vacuum packed in cassettes of (1) in a class 100 clean room, under a nitrogen atmosphere. Cleanliness: Ready for EPI	Vacuum packed in cassettes of (1) in a class 100 clean room, under a nitrogen atmosphere. Cleanliness: Ready for EPI
Delivery	Standard Parts from stock, subject to availability, otherwise 8 weeks	Standard Parts from stock, subject to availability, otherwise 8 weeks

Length/Width (mm)	Thickness (mm)	Orientation (°)	QTY 1-4	QTY 5	QTY 10	QTY 25
10 x 10	0.432	0	$62	$58	$54	$48
25.4 x 25.4	0.5	0	$62	$58	$54	$48

Grade	Hemlux
Polish Type	superpolish faces < 10 Å P-V, <2 Å RMS
Orientation	(0001) C-axis, ± 1° or better
Diameter Tolerance	± 0.1 mm
Thickness Tolerance	± 0.05 mm
Flatness	Faces flat to L/8, L/4 TWE within a 50% C.A.

Diameter (inches)	Thickness (inches)	Orienta-tion (°)	QTY 1-4	QTY 5-9	QTY 10-24	QTY 25+
2	0.04	0	$240	$137	$131	$114
2	0.04	60	$240	$130	$125	$108
2	0.04	90	$240	$130	$125	$108
2	0.125	0	$240	$183	$177	$160
2	0.125	60	$240	$173	$168	$152
2	0.125	90	$240	$173	$168	$152
2	0.25	0	$360	$318	$296	$285

Online Catalogue

Browsе our online catalogue for LED, Optical, High Performance Sapphire Windows and Ti Sapphire sizes and pricing specifications

Brewster Cut HEM Ti:Sapphire For Amplifiers and Ultrafast Lasers

Properties:

Pricing:

Plano/Plano - Ends Coated HEM® Ti:Sapphire Amplifier

Properties:

Pricing:

Standard Optical Windows: 1" Diameter

Properties

Pricing:

Standard Optical Windows: 1.5" Diameter

Properties

Pricing:

Standard Optical Windows: 1.75" Diameter

Properties

Pricing:

Standard Optical Windows: 2" Diameter

Properties

Pricing:

Standard Optical Windows: 2.5" Diameter

Properties

Pricing:

Single side polished: front side epi; backside fine ground

Properties

Pricing

Double side polished: front side epi; backside 80-50 optical polish

Properties

Pricing

Single side polished: front side epi; backside fine ground

Properties

Pricing

Double side polished: both sides epi

Properties

Pricing

Hemlux Sapphire Windows, 10mm Diameter

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Hemlux Sapphire Windows, 12.7 mm Diameter

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Hemlux Sapphire Windows, 20 mm Diameter

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Hemlux Sapphire Windows, 25.4 mm Diameter

Properties

Pricing

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