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 in the 2.0-5.0 µm region, broad angular and temperature bandwidth, low dielectric constants. And its low ionic conductivities result in higher damage threshold compared with KTP . KTA is often used as an OPO / OPA gain medium for emission in the 3µm range as well as an OPO crystal for eye-safe emission at high average power. Crystal Structure: Orthorhombic, Point Group mm2 Lattice Parameter: a=13.125Å, b=6.5716Å, c=10.786Å Melting Point: 1130 ˚C 1130 ˚C: near 5 Density: 3.454g/cm3 Thermal Conductivity: K1:1.8W/m/K; K2: 1.9W/m/K; K3: 2.1W/m/K
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Overview
Specifications
| Parameter | Value |
|---|---|
| Crystal Structure | Orthorhombic, Point Group mm2 |
| Lattice Parameter | a=13.125Å, b=6.5716Å, c=10.786Å |
| Melting Point | 1130 ˚C |
| Mohs Hardness | near 5 |
| Density | 3.454g/cm3 |
| Thermal Conductivity | K1:1.8W/m/K; K2: 1.9W/m/K; K3: 2.1W/m/K |
| Transparency Range | 350-5300nm |
| Absorption Coefficients [1064 nm] | @ 1064 nm<0.05%/cm |
| Absorption Coefficients [1533 nm] | @ 1533 nm<0.05%/cm |
| Absorption Coefficients [3475 nm] | @ 3475 nm<5%/cm |
| NLO Susceptibilities | d31 = 2.76, d32 = 4.74, d33 = 18.5 , d15 = 2.3, d24 = 3.2 |
| Electro-optical constants [low frequency] | ｒ33=37.5; ｒ23=15.4; ｒ13=11.5 |
| SHG Phase Matchable Range | 1083-3789nm |
Key Features
Datasheet
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