OST Photonics offers various functional crystal materials for laser systems, optical equipment and instruments. Crystals are divided into six types according to their functions: laser crystals (diffusion bonding crystals, Nd:YAG, Er:YAG, Yb:YAG, CTH:YAG, Nd:Ce:YAG, Nd:YVO4, Nd:GdVO4, Nd:YLF, Pr:YLF, Ho:YLF, Tm:YLF, Ti:Sapphire, Er:Yb: Glass), nonlinear crystals (KDP & DKDP), KTP, LiNbO3, LBO, BBO, BIBO), passive Q-switch crystals (Cr4+:YAG, Co2+:MgAl2O4), birefringent crystals (YVO4, �±-BBO), Magneto-optic Crystals (TGG) and optical crystals (BaF2, CaF2, MgF2, LiF, Germanium single crystal, Sapphire (Al2O3), YAG, ZnSe, Silicon single crystal, ZnS). If you want to know more about our functional crystals, please do not hesitate to contact OST Photonics. What are Functional Crystals? A wide range of functional crystal materials is used in various optical applications. While optical glass is commonly used as a transparent material, different functional crystal materials, primarily monocrystalline materials, are required for diverse applications due to their unique functionalities: In contrast to glass, birefringent crystals can exhibit birefringence, which is a requirement for various types of polarizers, wave plates, birefringent tuners, and other optical components. Commonly used birefringent crystal materials include YVO4, �±-BBO, quartz, calcite and sapphire. The lattice symmetry of a crystal material is not too high (such as a triangular, quadrilateral, or single prism), and it can exhibit nonlinearity. Nonlinear crystals are primarily used for nonlinear frequency conversion but also find applications in optical modulators like the Pokel cell. A wide variety of functional crystal materials can be used as laser crystals, serving as host materials for laser-active dopants (rare earth ions or transition metal ions). They typically exhibit relatively high transition cross sections, small gain bandwidth, and good heat conduction compared to laser-active glasses. In general, they also allow for higher doping concentrations. In some cases, functional crystal materials are used in spectral regions where glass does not have a wide enough wavelength range and high transmittance. In particular, various materials such as zinc sulfide (ZnS), zinc selenide (ZnSe) and Sapphire (Al2O3) are used as infrared crystals, and other materials such as lithium fluoride (LiF), calcium fluoride (CaF2) and magnesium fluoride (MgF2) are used as ultraviolet crystals. Some functional crystal materials, such as terbium gallium garnet (TGG), exhibit the Faraday effect (polarization rotation caused by magnetic fields), and they can be utilized in devices like Faraday rotators and Faraday isolators.
BaF2 window crystals or Barium Fluoride window crystals, with their extremely broad transmission range from the deep UV to LWIR spectrum, are prevalent for Infrared applications requiring additional transmission in the Ultraviolet region. BaF2 window crystals are excellent when being used for IR spectroscopes and as viewport windows for thermal imaging inspection in electric power facilities and petroleum industries. A low refractive index of 1.48 implies BaF2 windows have high transmission rates without anti-reflection coating. BaF2 window crystals has similar properties to CaF2, the difference mainly lies in that barium fluoride window is more resistant to highly energetic radiation, and with an equivalent thickness, the transmission range of BaF2 window extends approximately 1 micron further into the long-wave IR region than calcium fluoride. BaF2 window crystals could also accommodate high-temperature environments up to 800 â??. However, exposure to moisture will increase its sensitivity to temperature and reduce its transmission rate to UV lights. If you would like to know more about BaF2 IR windows, BaF2 window crystals prices, please do not hesitate to contact Ost Photonics. Infrared and ultraviolet windows/prism High energy physics Nuclear physics Nuclear medicine Advantages of BaF2 Window (Barium Fluoride Window)Crystals Excellent Transmission from 200nm 12m Resistant to High-Energy Radiation Provide High Transmission without AR Coatings
CdWO4 Cadmium tungstate crystal is a high density, high atomic number scintillator with a relatively high light yield. The emission maximum is at 475nm and the total light output is 12 to 15 photons/keV. The light yield relative to NaI(Tl) on a bialkali PMT is 30 to 50%. In addition, CdWO4 Scintillator cadmium tungstate scintillator also has the advantages of strong radiation resistance and no radioactive background. The high light output and low afterglow make it ideal for use with silicon photodiodes in detectors for medical and industrial Computed Tomography (CT) scanners. Ost Photonics is able to supply CdWO4 crystals cadmium tungstate scintillator and CdWO4 linear or 2-D array upon your requests. Application of CdWO4 Scintillators (Cadmium Tungstate Scintillators) Industrial computed tomography (CT) scanners Medical computed tomography (CT) scanners Security inspection High energy physics Advantages of CdWO4 Scintillator (Cadmium Tungstate Scintillator) Low afterglow Relatively high light yield Strong radiation resistance High density high atomic number No radioactive background The Ability of OST Photonics CdWO4 Scintillators(Cadmium Tungstate Scintillators) Maximum Size: �¸80mm x 200mm Available items: monolithic crystal, linear or 2-D array
Ost photonics, crystal material products such as scintillation crystal, encapsulated scintillator, pixellated array and scintillation detector for nuclear radiation detection, laser crystals, optics and components for laser system and applications, ir windows and oem optics for thermal imaging cameras and applications..Manufacturing and developing
±-BBO (±-BaB2O4) is a negative uniaxial crystal which has large birefringence over a broad transparent range of 190nm to 3500nm. ±-BBO is an excellent crystal especially in UV and high power applications. The physical, chemical, thermal, and optical properties of alpha-BBO crystal are similar to those of Beta-BBO. However, there is no second order nonlinear effect in alpha-BBO crystal due to the centrosymmetry in its crystal structure and thus it has no use for second order nonlinear optical processes. Instead, alpha BBO is widely used for fabrication of polarizers, polarizing beam displacers, phase retarders, birefringent plates, and time delay compensators especially those for UV and high power lasers. Applications of ±-BBO Crystals High power Beam displacers for isolators. High power Polarizer Time delay compensators Advantages of ±-BBO Crystals High UV transmittance Large birefringence High damage threshold Here at OST Photonics, we value integrity, accountability, and punctuality. Our vision is to be the most professional and reliable supplier of crystal products in the world.
Cerium-doped Lutetium Yttrium Orthosilicate or LYSO(Ce) scintillator has the advantages of high light output, high density, short decay time, excellent timing and energy resolution. These properties make LYSO(Ce) becoming the most popular scintillators in Nuclear medicine (Positron Emission Tomography, PET/CT, and SPECT scan system), high energy physics, security scanners, and other applications. OST Photonics has a complete set of crystal processing and assembly line, we can process all kinds of lyso scintillation crystal and LYSO(Ce) arrays according to customer's requirements. We have our own laboratory to test the product performance to ensure that the product performance meets the requirements of our customers. We provide professional solutions for lyso crystal growth, surface treatment and array assembly. Application of LYSO Ce Scintillators (LYSO:Ce Scintillators) Positron emission tomography-computed tomography (PET-CT) Nuclear magnetic resonance imaging (NMRI) Single photon emission computed tomography (SPECT) High energy physics Advantages of LYSO scintillator (LYSO:Ce Scintillators) High light output High density Short decay time Stable chemical and physical lyso scintillator properties The Ability of OST Photonics Maximum Size: 105mm x 200mm Available items: monolithic crystal, scintillation screen, pixellated array
Li-6 lithium glass scintillator is a kind of inorganic scintillator which can be used for thermal neutron detection. It has the advantages of short decay time, high efficiency of slow neutron detection and good temperature performance. In addition, the Li-6 glass scintillator is easy to process and form, non-hygroscopic, acid and alkali resistant, can withstand the high and low temperature rapid change. Therefore, in the harsh situation that contains corrosive liquid and vapor, the lithium glass (Ce) can still work, but other scintillators cannot be suitable. Li-6 glass scintillator are widely used in neutron time-of-flight experiments, oil and natural gas exploration, moisture content measurement, nondestructive testing and neutron photography. OST Photonics can provide different specifications of Li-6 glass scintillators according to your requirements. Neutron time-of-flight experiments Oil and natural gas exploration Moisture content measurement Nondestructive testing(NDT) Neutron photography Advantages of Li-6 Glass Scintillators Fast decay time High efficiency of slow neutron detection Good temperature performance Non-hygroscopic The Ability of OST Photonics Maximum Size: �¸50mm x 50mm Available items: monolithic glass
Crystals such as sodium chloride (NaCl), potassium bromide (KBr) and potassium chloride (KCl) are uniform, bright and high transmittance within 0.250-20 �¼m when thickness less than 10mm, and no impurity absorption. These single crystals are ideal materials for making optical elements for prisms, lenses, filters, and various windows in infrared devices and optical instruments. OST Photonics offers high quality KBr substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements. Application of KBr Substrates Infrared devices optical instruments Advantages of KBr Substrate Uniform, bright and high transmittance within 0.250-20 �¼m when thickness less than 10 mm No impurity absorption Ability of KBr Substrates Orientation:,,, etc. Dimension: 1, 2, 10x10mm, 20x20mm, etc. Thickness: 0.5mm, 1.0mm, 2mm, 5mm, etc. Available items: windows, substrates, blanks and customized optics
