Holmium-Doped Yttrium Lithium Fluoride Crystal

Data sheet

Density	3.95 g/cm³
Materials	Ho:YLF Crystal

More info

Holmium-Doped Yttrium Lithium Fluoride (Ho:YLF) Crystal is a new and promising laser material that eliminates energy transfer losses from Tm3+ to Ho3+ ions with direct pumping. One of its key features is the long lifetime of the 5I7 energy level, which gives it strong performance in Q-switching operations. Ho:YLF crystals are available in four standard types, priced between 6000 and 6500. They are widely used in applications such as remote sensing and pollution detection in the military, medical, and industrial sectors. Heeger Materials provides Ho:YLF Crystal for advanced applications.

Holmium-Doped Yttrium Lithium Fluoride Crystal | Ho:YLF Crystal

Ho:YLF Crystal Properties

Absorption Peak Wavelength	1940 nm
Absorption Cross-section at Peak	1.2 × 10⁻²⁰ cm²
Absorption Bandwidth at Peak Wavelength	~18 nm
Laser Wavelength	2060 nm
Lifetime of ⁵I₇ Energy Level	10 ms
Emission Cross-section	1.8 × 10⁻²⁰ cm²
Refractive Index @1064 nm	n₀=1.448, nₑ=1.470
Crystal Structure	Tetragonal
Density	3.95 g/cm³
Mohs Hardness	5
Thermal Conductivity	6 W/m·K
dn/dT	-4.6 × 10⁻⁶ (//c) K⁻¹, -6.6 × 10⁻⁶ (//a) K⁻¹
Thermal Expansion Coefficient	10.1 × 10⁻⁶ (//c) K⁻¹, 14.3 × 10⁻⁶ (//a) K⁻¹
Typical Doping Level	0.5-1%

Ho:YLF Crystal Specifications

Crystal Orientation	a-cut
Clear Aperture	>90%
Dimension Tolerance	+0/-0.1 mm
Length Tolerance	±0.1 mm
Parallelism Error	<10 arcsec
Perpendicularity Error	<10 arcmin
Chamfer Protection	<0.1 mm at 45˚
Surface Quality	10-5 S-D
Surface Flatness	<λ/10 @ 632.8 nm
Coating	AR (R<0.35%) @ 1900-2100 nm on both faces
Laser Damage Threshold	>10 J/cm² @ 2060 nm, 10 ns

Ho:YLF Crystal Stock Dimensions

Dimensions (mm)	Length (mm)	End Face	Doping Concentration	Coating
5x5	2	Brewster cut	0.7%	Uncoated
5x5	2	Right-angle cut	0.7%	AR/AR @ 1900-2100 nm
∅8	2	Brewster cut	0.7%	Uncoated
∅8	2	Right-angle cut	0.7%	AR/AR @ 1900-2100 nm

Ho:YLF Crystal Absorption and Emission Curve

HoYLF Crystal Absorption and Emission Curve

Ho:YLF Crystal Key Advantages

High laser level lifetime.
High emission cross-section.
Naturally birefringent material.
Custom crystals are available upon request.

Ho:YLF Crystal Applications

Remote Sensing: Used in laser systems for environmental monitoring and remote sensing applications.
Pollution Detection: Applied in systems designed for detecting pollutants and measuring air quality.
Industrial Applications: Utilized in various industrial processes, including materials processing and precision cutting.
Military: Ideal for military-grade laser systems due to its high efficiency and reliability in harsh conditions.
Medical Applications: Employed in medical devices for laser-based diagnostics and treatments, offering high precision and safety.

Ho:YLF Crystal Packing And Shipping

Holmium-Doped Yttrium Lithium Fluoride (Ho:YLF) 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 Ho:YLF Crystal in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Laser Crystals products including Holmium-Doped Yttrium Lithium Fluoride (Ho:YLF) 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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