CASTECH, Inc. Datasheets for Optical Crystals

Optical crystals are transparent in different spectral regions, depending upon the crystal material.
Optical Crystals: Learn more

Product Name Notes
Birefringent Crystals -- a-BBO a-BBO (a-BaB2O4) is a negative uniaxial crystal which has large birefringence over a broad transparent range of 190nm to 3500nm. a-BBO is an excellent crystal especially in UV and high...
NLO Crystals -- BBO Crystal Beta-Barium Borate (ß-BaB2O4 or BBO), discovered and developed by FIRSM, CAS (Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences), now is manufactured and marketed by...
NLO Crystals -- BIBO Crystal BiB3O6 (BIBO) is a newly developed nonlinear optical crystal. It possesses large effective nonlinear coefficient, high damage threshold and inertness with respect to moisture. Its nonlinear coefficient is 3.5 -...
Scintillation Crystals -- Cadium Tungstate Scintillation Crystal Cadium tungstate (CdWO4, CWO) single crystal is an important scintillation materials applied in the radiation detection technology, especially for security checking , industrial CT and medical imaging. Large-size CWO single...
Laser Crystals -- Nd:YLF CASTECH grows Nd:YLF crystals using Czochralski method. The use of high quality starting materials for crystal growth, whole boule interferometry, and precise inspection of scattering particle in crystal using He-Ne...
Laser Crystals -- Cr:LiSAF CASTECH provides high quality, Cr-doped Colquiriite crystal (Cr:LiSAF) using the Czochralski technique. It is excellent laser material with high energy storage and high slope efficiency. It is also ideal working...
Laser Crystals -- Nd:GdVO4 CASTECH's Nd:GdVO4 is featured by: • Large stimulated emission cross section at laser wavelength; • High absorption coefficient and wide bandwidth at pump wavelength; • Low dependency on pump wavelength;
Scintillation Crystals -- LaCl3(Ce) Cerium-doped lanthanum chloride LaCl3(Ce) is a newly developed scintillation crystal with hexagonal structure, colorless, transparent. It offers superior energy resolution, fast emission and excellent linearity. It has light output similar...
Scintillation Crystals -- CsI Cesium Iodide is a material with high ?-ray stopping power due to its relative high density and atomic number. For scintillation counting, it is used either in its undoped form...
NLO Crystals -- CLBO Crystal Cesium Lithium Borate (CsLiB6O10,CLBO) is a newly developed crystal with excellent UV nonlinear feature, and widely used for semiconductor inspection, micro processing,bio-medical,UV-LIDAR,etc. Compared to BBO,it has larger spectral and temperature...
NLO Crystals -- MgO:LiNbO3 Crystal Compared with LiNbO3 crystal, MgO: LiNbO3 crystal exhibits its particular advantages for NCPM frequency doubling (SHG) of Nd:Lasers, mixing (SFG) and optical parametric oscillators (OPOs). The SHG efficiencies of over...
Laser Crystals -- Cr4+:YAG Cr4+:YAG Crystal is an excellent crystal for passively Q-switching diode pumped or lamp-pumped Nd:YAG, Nd:YLF, Nd:YVO4 or other Nd and Yb doped lasers at wavelength from 0.8 to 1.2 µm.
Laser Crystals -- Diffusion Bonded Crystal Diffusion Bonded Crystals consist of one laser crystal and one or two undoped material. They are combined by optical contact method and further bonded under high temperature. Diffusion Bonded Crystal...
Laser Crystals -- Er,Cr:YSGG Er,Cr:YSGG (Erbium, Chromium doped Yttrium Scandium Gallium Garnet) provides an efficient laser crystal for generating 2800nm light in an important water absorption band. It becomes one of the most promising...
Laser Crystals -- Er:YAG Er:YAG is an excellent laser crystal which lases at 2940 nm. This wavelength is the most readily absorbed into water and hydroxylapatite of all existing wavelengths and is considered a...
Laser Crystals -- Ho:Cr:Tm:YAG Ho:Cr:Tm:YAG is a high efficient laser material which lases at 2.1 µm. It has wide applications in surgery, dentistry, atmospheric testing, etc.
Laser Crystals -- Nd:Ce:YAG In double doped Nd:Ce:YAG crystals Cerium are chosen as sensitizer for Nd3+ ions because of its strong absorption in UV spectral region at flash lamp pumping and efficient energy transfer...
NLO Crystals -- LiIO3 Crystal LiIO3 crystal is one of the oldest commercial NLO crystals. For the high NLO coefficient. LiIO3 is used for frequency-doubling, tripling and mixing of low and medium power lasers. CASTECH...
Birefringent Crystals -- LiNbO3 LiNbO3 crystal combines low cost, good mechanical and physical properties as well as high optical homogeneity. Therefore, LiNbO3 wedges have been widely used in fiber isolators and circulators.
AO and EO Crystals -- LiNbO3 LiNbO3 is widely used as electro-optic modulators and Q-switches for Nd:YAG, Nd:YLF and Ti:Sapphire lasers as well as modulators for fiber optics.
AO and EO Crystals -- LiTaO3 LiTaO3 is an E-O crystal widely used for E-O devices, due to its good optical NLO and E-O properties, as well as high damage threshold. CASTECH supplies high quality LiTaO3...
NLO Crystals -- LBO Crystal Lithium Triborate (LiB3O5 or LBO) is an excellent nonlinear optical crystal discovered and developed by FIRSM, CAS (Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences).
Scintillation Crystals -- NaI(Tl) NaI (TI) is the most extensively used material of all the available scintillators. It is grown by host material sodium iodide doped with appropriate percentage of thallium. The main emission...
Laser Crystals -- Nd:YAG Nd:YAG is the earliest and most famous laser host crystal. Since it combines great advantages in many basic properties, Nd:YAG is the ubiquitous presence for near-infrared solid-state lasers and their...
Laser Crystals -- Nd:YVO4 Nd:YVO4 is the most efficient laser host crystal for diode pumping among the current commercial laser crystals, especially, for low to middle power density. This is mainly for its absorption...
Laser Crystals -- Nd:KGW Neodymium doped Potassium-Gadolinium Tungstate crystals (Nd:KGd(WO4)2 or Nd:KGW) is an excellent laser gain material which has low laser oscillations threshold and higher emission section. The fluorescent concentration quench effect of...
NLO Crystals -- KD*P & KDP Potassium Dihydrogen Phosphate (KDP) and Potassium Dideuterium Phosphate (KD*P ) are among the most widely-used commercial NLO materials, characterized by good UV transmission, high damage threshold, and high birefringence, though...
NLO Crystals -- GTR-KTP Crystal Potassium Titanyl Phosphate (KTiOPO4 or KTP) is an excellent NLO crystal, widely used in both commercial and military lasers. However conventional KTP suffer a significant drawbacks. The gray track phenomena...
NLO Crystals -- KTP Crystal Potassium Titanyl Phosphate (KTiOPO4 or KTP) is widely used in both commercial and military lasers including laboratory and medical systems, range-finders, lidar, optical communication and industrial systems.
NLO Crystals -- KTA Crystal Potassium Titanyle Arsenate (KTiOAsO4), or KTA crystal, is an excellent nonlinear optical crystal for Optical Parametric Oscillation (OPO) application. It has better non-linear optical and electro-optical coefficients, significantly reduced absorption...
NLO Crystals -- RTP Crystal RTP (Rubidium Titanyle Phosphate - RbTiOPO4) is an isomorph of KTP crystal which is used in nonlinear and Electro-Optical applications. It has advantages of high damage threshold (about 1.8 times...
Magneto-Optical Crystals -- TGG Crystal TGG is an excellent magneto-optical crystal used in various Faraday devices (Rotator and Isolator) in the range of 400nm-1100nm, excluding 475-500nm.
Birefringent Crystals -- YVO4 The Yttrium Orthovanadate (YVO4) is a positive uniaxial crystal grown with Czochralski method. It has good temperature stability and physical and mechanical properties. It is ideal for optical polarizing components...
Laser Crystals -- Ti:Sapphire Titanium doped Sapphire (Ti:Sapphire) is the most widely used laser crystal for widely tunable and ultrashort pulsed lasers with high gain and power outputs. CASTECH possesses the advanced growth method...
Magneto-Optical Crystals -- TSAG Crystal TSAG is a key isolator material for next generation fiber laser. As an ideal magneto-optic crystal in visible and infrared regions,TSAG has the advantages of high Verdet constant,excellent thermal and...
Laser Crystals -- Yb:CaGdAlO4 Crystal Yb:CaGdAlO4(called CALGO) is a promising new laser gain material which possess several important advantages. The crystal structure of CALGO is tetragonal. When it is pumped at 979nm under pi configuration,...
Laser Crystals -- Yb:YAG Yb:YAG is one of the most promising laser-active materials and more suitable for diode-pumping than the traditional Nd-doped systems. Compared with the commonly used Nd:YAG crystal, Yb:YAG crystal has a...
Laser Crystals -- Yb:KGW Ytterbium doped Potassium-Gadolinium Tungstate crystals - (Yb:KGd(WO4)2 or Yb:KGW) is an excellent laser gain material which has important advantages over the widely used Nd3+ doped materials. Its broad spectral emission...