LilnSe2 (Lithium Selenide) – Nonlinear Crystal – Customized Products
LilnSe2 (Lithium Selenide), referred to as LISe crystal, is a point group of mm2, the light transmission range is 0.43~13.2 μm, and the effective nonlinear coefficient is large (d31=11.78, d24=8.17 @2.3 μm), it can be applied to pump titanium Sapphire laser, optical parametric oscillation (OPO) can obtain 1-13 μm mid-infrared laser output and different frequencies in the mid-infrared range (2-13 μm).
Note:
$100 is a deposit, not the final price of the product. Please contact us for price if needed.
FEATURES
Small band gap, suitable for neutron detection
High heat conductivity
High laser damage threshold
Crystal growth is not easy to crack
Good neutron recognition capability
It is not easy to crack during growth
Optical Element Parameters
| Positional Accuracy | <30’ |
| Parallelism | <30’’ |
| Flatness | λ/4@546nm |
| Surface Finish | 30/20 sratch/dig |
Physicochemical Properties
| Crystal Structure | Orthorhombic， point group: mm2， space groups: Pna21 |
| Lattice Parameters Å | a=7.192, b=8.412, c=6.793 |
| Transparency range | 0.43-13μm |
| Nonlinear Coefficient pm/V | d31=11.78, d24=8.17 @2.3μm |
| Standard Reflectance | @10.0 µm nx=2.2015, ny=2.2522, nz=2.2566 |
| @5.0 µm nx=2.2370, ny=2.2772, nz=2.2818 | |
| SHG Fundamental Frequency Light Range | x-y, Type II, eoe：2.73 – 8.24μm |
| x-z, Type I, ooe： 2.08 – 12.4μm | |
| y-z, Type II, oeo：2.73 – 3.07μm | |
| y-z Type II, oeo， 7.66 – 8.24μm | |
| Total wavelength coverage：2.08 – 12.4μm | |
| Damage Threshold，GW/cm2 | 40 @1064 nm (t=10 ns) |
| Thermal Conductivity ，WM/M°C |
kx=4.73 ± 0.3; ky=4.67 ± 0.3; kz=5.45 ± 0.3 |
| Band gap energy at room temperature | 2.73eV |
| Far infrared absorption edge at 0.2 level of transmittance | 1.24 THz @240 µm |
Spectrum
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