Quartz
Growth method | Hydrothermal |
Crystal structure | hexagonal |
Lattice constant | a=4.914Å c=5.405Å |
Density | 2.684g/ cm3 |
Hardness | 7 (mohs) |
Heat capacity | 0.18cal/gm |
Melting point | 1610°C (phase transition point: 573.1°C) |
Thermal conductivity | 0.0033cal/cm |
Thermoelectric constant | 1200uv/°C (300°C) |
Refractive index | 1.544 |
Thermal expansion coefficient | α11: 13.71×10 6 / α33: 7.48×10 6 / |
Q value sound velocity, SAW level frequency constant piezoelectric coupling | 1.8×10 6 min 3160 (m/sec) 1661 (kHz/mm) K2(%) BAW: 0.65 SAW: 0.14 |
Wrapping | IEC Grade |
Material | quartz crystal | ||||||
Tangential | X/Y/Z/AT32, 33, 36/BT/ST42.75°-cut etc | ||||||
Size | 3"(76.2mm) | 4" (100mm) | 6"(150mm) | 8"(200mm) | |||
Tolerance (±) | <0.20 mm | ||||||
Thickness | 0.08mmMin | 0.10mmMin | 0.20mmMin | ≥0.35mm | |||
main reference edge | 22mm | 32mm | 42.5mm | 57.5mm | |||
LTV (5mmx5mm) | 1µm | ||||||
TTV | 3µm | ||||||
Bow | -30bow30 | ||||||
Warp | 40µm | ||||||
PLTV(<0.5um) | ≥95%(5mm*5mm) | ||||||
Orientation Flat | All available | ||||||
Polishing | Single Throw/Double Throw | ||||||
Surface roughness | Ra0.5nm | ||||||
Back | 0.2-0.5µm | ||||||
Chamfer | R=0.2mm | ||||||
Material properties | ECD | better than grade 4 | |||||
envelope | Better than II | ||||||
Q-Value | better than C | ||||||
Surface finish | Particle >0.3 µm | <= 30 | |||||
Scratches, Chipping | none | ||||||
flaw | Five chipped edges, scratches, stains, etc. | ||||||
Package | quantity | 25 pieces/box |






FAQ
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.
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?
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.
Magneto-optic crystals: TGG, TSAG,TLF, KTF, CeF3, YIG.
Nonlinear crystals: β-BBO, KDP, DKDP, LBO, KTP, PPLN. Metal Single crystals: Al, Cu, Mg, Ni.
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 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.
. 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.
