Al2O3 Sapphire Single Crystal-an Important Superconducting Thin Film Substrate

Product Description

Products Description
Al2O3 Sapphire Al2O3 Sapphire single crystal is an excellent multifunctional material. It has high temperature resistance, good thermal conductivity, high hardness, infrared transmittance, and good chemical stability. Widely used in multiple fields such as industry, national defense, and scientific research (such as high-temperature infrared windows). At the same time, it is also a widely used single crystal substrate material, which is the preferred substrate for the current blue, purple, and white light emitting diodes (LEDs) and blue laser (LD) industries (requiring the epitaxial growth of gallium nitride thin films on sapphire substrates), and is also an important superconducting thin film substrate.
Product Parameters

Syngony	hexagonal crystal system
Lattice constants	a=4.748Å c=12.97Å
Density	3.98g/cm3
Melting point	2040
Growing directions	Tira method, bubble method
Mohs hardness	9
Refractive index	At 300K, C, 1.762 @630nm ⊥C1.770 @630nm
Thermal expansion coefficient	5.8x10-6/K
Thermal conductivity (cal/ cm s)		⊥c	//c
		23	0.055	26 0.060
		77	0.040	70 0.041
Loss angle tangent @ 293K	1×10-41MHz
Dielectric constant *103-109Hz @ 25	∥C11.5 ⊥C9.3
Transmittance	Ø 80@ 400~4000nm
Crystallographic orientation	A-plane	<11-20>	2.379A
		R-plane	<1-102>	1.740A
		M-plane	<10-10>	1.375A
		C-plane	<0001>	2.165A
Crystallographic tolerance	±0.5°
Conventional dimensions and tolerances	103,105,1010,1515,2015,2020 or custom-made
Conventional thickness and tolerance	0.5mm1.0mm
Polishing	Single or double-sided
Surface roughness	Ra1nm 5×5μm
Package	100 clean bag, 1000 ultra-clean room

Company Profile

Shanghai Opticrystal Materials Co., Ltd was established in 2014 , mainly engaged in the R&D, processing and sales of optical crystals, electronic and semiconductor materials, as well as laboratory equipment, spare parts, consumables and other products. With a professional R&D, processing and sales team. Our products have been widely sold and used in laser processing, new energy vehicles, photovoltaics, optical communications, aerospace, ships, nuclear detection, medical beauty, consumer electronics, electricity, Environmental protection, scientific research and other fields, the products are exported to Europe, America and Southeast Asia and other regions.
Why Choose Us
FAQ 1. Who are we?
We are based in Shanghai, China, and the company started from 2014. Products have been sold to Europe (30.00%), North America(30.00%), South America(20.00%) and East Asia (20%).There are total about 35 employees in our company. 2. How can we guarantee quality?
With over 10 years manufacturing experience and strict quality control system, the products quality is ensured. Also samples are available before mass production; Always final Inspection before shipment.
3.What can you buy from us? . Optical Crystals :
Laser crystals: Nd:YAG, Cr4+:YAG, Yb:YAG, Tm:YAP, Ho:YAG , Ho:YAP, Er:YAG, Er: glass, Nd:YLF, Nd:YVO4, Ti3+:Al2O3 and bonded crystals. Scintillation crystals: Ce:LuAG, Ce:GAGG, Ce:YAG.
Piezoelectric crystals: BaTiO3, Quartz, (PMN-PT), LiTaO3, LiNbO3,LGS.
Magneto-optic crystals: TGG, TSAG,TLF, KTF, CeF3, YIG.
Acousto-optic crystal: TeO2. Birefringent crystals: YVO4, α-BBO.
Nonlinear crystals: β-BBO, KDP, DKDP, LBO, KTP, PPLN. Metal Single crystals: Al, Cu, Mg, Ni.
Single crystal substrates: Al2O3, GGG/NGG/SGGG,LSAT, LaAIO3, MgO, MgAl2O4, SrTiO3, YSZ, TiO2.
Gemstones: Ruby, Sapphire, Emerald.
. Precision Optics:
Optical windows, filters, lenses, prisms, objective lenses, cylindrical mirrors, mirrors, beam combiners, beam expanders,
wedge mirrors, glued mirrors, etc.; materials include BK7, K9, quartz glass, sapphire, silicon Si , Germanium Ge, zinc selenide ZnSe, calcium fluoride CaF2, magnesium fluoride MgF2, barium fluoride BaF2, zinc sulfide ZnS and so on.
. Optical Devices:
Photoelectric Pockels Cell: BBO, KDP, DKDP, LN/MgO:LN, LGS, KTP, RTP. Faraday Optical Isolators: Polarization-independent isolator, polarization-dependent isolator, near-infrared visible light free-space isolator, in-line isolator, circulator, etc.
Optical Modulators: lithium niobate phase modulators, fiber-coupled acousto-optic modulators, spatial acousto-optic
modulators, acousto-optic Q switches, acousto-optic filters, acousto-optic deflectors, and acousto-optic drivers.
Special Optical Fiber:
special silica optical fiber, single optical fiber, optical fiber bundle, optical fiber passer, optical fiber collimator.
. Semiconductor Materials:
Quartz, diamond, GaAs, Si, Ge, ZnO, AlN, GaN, GaO, SiC, LiTaO3, LiNbO3, etc.
Ceramic Substrates: Si3N4, Al2O3, AlN, ZrO2.
Sputtering targets: single crystal target, metal target, alloy target, ceramic target, compound target, rare earth target.
. Laboratory equipment and consumables:
Optical platforms, translation stages, mirror frames, teaching experiment modules, spectrometers, power meters, lasers, pulsed
xenon lamps, scientific research electric furnaces, performance testing equipment, consumables, etc.
4. What services can we provide?
Free samples
Customization
24hours online service.
After sales service
Packaging & Delivery

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