LiInS2 (LIS) Nonlinear Crystal with High Laser Damage Threshold and Wide Transparent Wavelength Range

• Customization: Available
• Transport Package: Carton
• Trademark: CRYSTRONG
• Origin: China
• HS Code: 9001909090

Product Description

LiInS2 (LIS)

 

INTRODUCTION:
Lithium Thioindate (LiInS2 or LIS) is an A^IB^IIIC₂^VI ternary semiconductor crystallizing with mm2 symmetry.
LiInS2 has a large nonlinear optical (NLO) coefficient, the non-linear characteristics of the crystals are close to AgGaS2 and AgGaSe2, but their crystal structures are different. LiInS2 crustal has a high laser damage threshold, and a wide transparent wavelength range, the useful transparency range of LiInS2 is 0.5-8 μ, which makes it an excellent mid-infrared NLO crystal. LiInS2 is pyroelectric as well, its electro-optical parameters are the base for using it as an effective electro-optical material. Three‐frequency collinear phase matching is possible in LiInS2, LiInS2 has large birefringence and low absorption in the THz frequency region is judged to be a potentially more useful optical nonlinear material than the analogous compound LiGaO2.

APPLICATIONS:
- Up-conversion of CO2-laser radiation image into near-IR or visible region
- Different frequency generator in middle IR range (2-12 μm)
- Optical parametric oscillator in 1-12 μm range with pump Al₂O₃: Ti
- Frequency mixing in the middle IR region
- For tunable solid-state lasers using OPO, pumped by Nd: YAG and other lasers in the range 1.2 - 10 μm
- Broadband Mid-Infrared Optical Parametric Amplification

 

MAIN PROPERTIES:	data
Transparency   range, μm	0.35 - 12.50
Point group	mm2
Lattice   parameters, Å	a = 6.893, b =   8.0578, c = 6.4816 Å
Density, g/cm3	3.5
Mohs hardness	5
Refractive   indexes:
at 0.532 μm	nx= 2.1305, ny= 2.1668, nz= 2.1745
at 1.064 μm	nx= 2.2353,   ny= 2.2841, nz= 2.2919
Non-linear coefficient, pm/V	d31 = 8.35, d32 = 8.3
Optical damage   threshold, GW/cm2	~1 (1064 nm,   10 ns)
Chemical properties	non-hygroscopic