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factory customized Zinc Selenide Lens - Ho: YAG Crystals – Dien Detail:
Ho:YAG Ho3+ ions doped into insulating laser crystals have exhibited 14 inter-manifold laser channels, operating in temporal modes from CW to mode-locked . Ho:YAG is commonly used as an efficient means to generate 2.1-μm laser emission from the 5I7- 5I8 transition, for applications such as laser remote sensing, medical surgery, and pumping Mid-IR OPO’s to achieve 3-5micron emission. Direct diode pumped systems,and Tm: Fiber Laser pumped system have demonstrated hi slope efficiencies, some approaching the theoretical limit.
Basic Properties
Ho3+ concentration range |
0.005 – 100 atomic % |
Emission Wavelength |
2.01 um |
Laser Transition |
5I7 → 5I8 |
Flouresence Lifetime |
8.5 ms |
Pump Wavelength |
1.9 um |
Coefficient of Thermal Expansion |
6.14 x 10-6 K-1 |
Thermal Diffusivity |
0.041 cm2 s-2 |
Thermal Conductivity |
11.2 W m-1 K-1 |
Specific Heat (Cp) |
0.59 J g-1 K-1 |
Thermal Shock Resistant |
800 W m-1 |
Refractive Index @ 632.8 nm |
1.83 |
Melting Point |
1965℃ |
Density |
4.56 g cm-3 |
MOHS Hardness |
8.25 |
Young’s Modulus |
335 Gpa |
Crystal Structure |
Cubic |
Standard Orientation |
<111> |
Y3+ Site Symmetry |
D2 |
Lattice Constant |
a=12.013 Å |
Technical Parameters
Wavefront distortion |
L/8per inch @633nm |
Extinction ratio |
>28dB |
Wavefront distortion |
L/8per inch @633nm |
Extinction ratio |
>28dB |
Tolerance:Rods with diameter |
(+0、-0.05)mm,( ±0.5) mm |
Surface quality |
10/5 Scratch/dig per MIL-O-1380A |
Parallelism |
<10arc seconds |
Perpendicularity |
<5arc minutes |
Aperture |
>90% |
Flatness |
λ/10@ 633 nm |
Tolerance:Rods with diameter |
(+0、-0.05)mm,( ±0.5) mm |
Surface quality |
10/5 Scratch/dig per MIL-O-1380A |
Parallelism |
<10arc seconds |
Perpendicularity |
<5arc minutes |
Aperture |
>90% |
Flatness |
λ/10@ 633 nm |
Absorption coefficient
Product detail pictures:
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We stick to the principle of "quality first, service first, continuous improvement and innovation to meet the customers" for the management and "zero defect, zero complaints" as the quality objective. To perfect our service, we provide the products with the good quality at the reasonable price for factory customized Zinc Selenide Lens - Ho: YAG Crystals – Dien , The product will supply to all over the world, such as: Denmark, Portland, Georgia, It is our customers' satisfaction over our products and services that always inspires us to do better in this business. We build mutually beneficial relationship with our clients by giving them large selection of premium car parts at marked down prices. We offer wholesale prices on all our quality parts so you are guaranteed greater savings.