Ost Photonics Kbr Substrates

OST Photonics CdWO4 Scintillators(Cadmium Tungstate Scintillators)
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.

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

±-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.

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

Luminol, is a yellow crystal or beige powder at room temperature and is a relatively stable chemical reagent. At the same time, luminol is a strong acid, which has a certain irritating effect on eyes, skin and respiratory tract.
It is one of the oldest and most commonly used reagents. It can be oxidized by peroxide under alkaline conditions and emit light at the same time. The redox reaction between luminol and peroxide requires a catalyst, which is generally more Valence metal ions, peroxidases such as iron, horseradish peroxidase, etc. This method is often used to detect the content of peroxides, heavy metals, peroxidase, and the derived free radicals, for toxicant analysis And analysis methods based on peroxidase and glucose oxidase.
Under normal circumstances, the chemiluminescence reaction between luminol and hydrogen peroxide is very rapid in the presence of certain catalysts. The most commonly used catalyst is metal ions. In a large concentration range, the concentration of metal ions is directly proportional to the luminescence intensity, so that chemiluminescence analysis of certain metal ions can be performed. This reaction can be used to analyze organic compounds containing metal ions to achieve Very high sensitivity. The second is to use the inhibitory effect of organic compounds on the chemiluminescence reaction of luminol to determine the organic compounds that have a quenching effect on the chemiluminescence reaction. The third is the indirect determination of inorganic or organic compounds through coupling reactions.
Luminol Luminescence Principle
One is that sodium hypochlorite oxidizes luminol to make it glow;
The second is that hydrogen peroxide reacts with sodium hypochlorite to generate oxygen and oxidize luminol to make it glow:
The first is the equation for the reaction of sodium hypochlorite and hydrogen peroxide: NaClO+ H2O2== NaCl + O2+ H2O
Secondly, when luminol reacts with hydroxide, a double negative ion (Dianion) is formed, which can be oxidized by oxygen generated by the decomposition of hydrogen peroxide, and the product is an organic peroxide. The peroxide is very unstable and immediately decomposes nitrogen (Luminol is not oxidized by organic oxidants such as dimethyl sulfoxide to generate nitrogen, but to generate nitrogen-containing organics) to generate excited 3-aminophthalic acid . In the transition from the excited state to the ground state, the released energy exists in the form of photons with a wavelength in the blue part of visible light.
The method of indirect determination by coupling refers to the combination of one reaction that can produce or consume chemiluminescence reactants with another chemiluminescence reaction, so that indirect chemiluminescence determination of certain substances can be achieved. This method is used when determining the purity of certain substrate enzymes.

OST Photonics can supply lithium niobate (LiNbO3) wafers, lithium tantalate (LiTaO3) wafers, quartz single crystal wafers, various glass and fused silica wafers, GaAs wafers, SiC wafers, InP wafers, sapphire (Al2O3) wafers, Ge wafers and Si wafers in different specifications. Square plates, blanks and crystal boules are also available upon request. Other single crystal substrate materials including MgAl2O4, MgO, SrTiO3, LaAlO3, GGG, DyScO3, GdScO3, TbScO3, KTN, PMN-PT, LSAT, SrLaAlO4, YAG, YAlO3 (YAP) are also available on request.
î??
What is the Difference Between SAW Grade Material and Optical Grade Material?

Optical grade materials are materials with low strain and no impurities, they are grown from the best raw materials at a relatively slow growth rate, and are often used in optical applications where the highest quality is required. Optical grade wafers are widely used in optical devices and require excellent optical performance.

SAW grade materials are primarily used in non-optical applications, and their growth raw materials rank second only to optical grade growth raw materials. The growth rate of this material is faster than that of optical grade material, which benefits mass production and cost-effectiveness.

In general, these grades of wafers vary in material quality and use. Optical grade wafers are considered to be of the highest quality, while SAW grade wafers are relatively lower in price. The selection of the appropriate wafer grade is crucial, depending on the specific application and material quality requirements.