Lithium Indium Selenide Crystal | LISe Crystal

Data sheet

Materials	LISe
Molecular Formula	LiInSe2

More info

Lithium Indium Selenide (LISe) Crystal is a versatile nonlinear optical material known for its broad spectral transparency range (0.47–13 µm) and high birefringence, enabling efficient frequency doubling and parametric oscillation of mid-infrared (MIR) lasers. With efficiency comparable to AgGaS2 and twice that of LiInS2, LISe crystals are particularly effective for generating MIR light using near-infrared solid-state lasers like Nd: YAG. They also excel in frequency conversion of femtosecond pulses, offering superior performance for direct conversion of Ti: sapphire and Cr: forsterite laser radiation into the MIR range. HM provides high-quality LISe Crystal, ensuring exceptional performance for advanced laser systems and nonlinear optical applications.

Lithium Indium Selenide Crystal | LISe Crystal | LiInSe2

LISe Crystal Properties

Transmission Range (µm)	0.43-13.2
Nonlinear Coefficients (pm/V)	d₃₁ = 11.78, d₂₄ = 8.17 @ 2.3 µm
Symmetry	Orthorhombic, mm2 point group
Lattice Parameters (Å)	a = 7.192, b = 8.412, c = 6.793
Standard Refractive Indices	10.0 µm	nx = 2.2015, ny = 2.2522, nz = 2.2566
	5.0 µm	nx = 2.2370, ny = 2.2772, nz = 2.2818
Fundamental Wavelength for SHG (µm)	x-y, Type II, eoe		2.73 – 8.24
	x-z, Type I, ooe		2.08 – 12.4
	y-z, Type II, oeo		2.73 – 3.07
	y-z, Type II, oeo		7.66 – 8.24
	Total Interval Covered		2.08 – 12.4
Optical Damage Threshold (GW/cm²)	1064 nm (t = 10 ns): ~40
Thermal Conductivity (WM/M°C)	kₓ = 4.73 ± 0.3, kᵧ = 4.67 ± 0.3, k_z = 5.45 ± 0.3
Far Infrared Absorption Edge at 0.2 Transmission Level	1.24 THz at 240 µm
Band Gap (eV)	2.86
Band Gap Energy at Room Temperature (eV)	Eg = 2.73

LISe Crystal Specifications

Positioning Accuracy (arc min)	< 30
Parallelism (arcsec)	< 30
Flatness	λ/4 @ 546 nm
Surface Quality (scratch/dig)	30/20

LISe Crystal Applications

Mid-Infrared (MIR) Frequency Doubling: Employed for efficient frequency doubling of MIR lasers, enabling high-power MIR light generation.
Optical Parametric Oscillators (OPOs): Utilized in MIR OPOs pumped by near-infrared lasers like Nd: YAG for tunable MIR light sources.
Femtosecond Pulse Conversion: Applied in frequency conversion of femtosecond pulses from Ti: sapphire and Cr: forsterite lasers into the MIR range.
Nonlinear Optical Research: Used in experimental setups for studying nonlinear optical phenomena and developing advanced photonic devices.
Spectroscopy and Sensing: Integrated into MIR spectroscopy and sensing systems for environmental monitoring, medical diagnostics, and defense applications.

LISe Crystal Packing And Shipping

Lithium Indium Selenide (LISe) Crystal will be securely packaged in sturdy containers with cushioning materials to prevent movement or damage during shipping. This careful packaging ensures that the product arrives in perfect condition, maintaining its high-quality standards throughout the delivery process.

Where to Buy Lithium Indium Selenide (LISe) Crystal in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Nonlinear Crystals products including Lithium Indium Selenide (LISe) Crystal, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We specialize in premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.

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