Cr, Er:YAG
Our Cr,Er:YAG is a laser crystal with excellent overall performance. It is widely used in laser medical and aesthetic applications, xenon-lamp pumping, and related fields. It features relatively high single-pulse energy, good optical quality, and low absorption loss. It can be used in mid-infrared lasers, xenon-lamp-pumped lasers, and 2940nm laser products.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Orientation | [100] or [100] <± 0.5^。 |
| Parallelism | 10〞 |
| Perpendicularity | 5ˊ |
| Wavefront distortion [@632 nm] | <λ/8@632 nm |
| Surface Flatness [@632.8nm] | <λ/10@632.8nm |
| Clear Aperture Dimension | >90% |
| Chamfer [@45°] | 0.1mm@45° |
| Thickness / Diameter Tolerance | ±0.05 mm |
| Dimensions | Diameter :2mm-50mm, Length :5mm-180mm |
| Coating [@2940 nm] | < 0.25% @ 2940 nm |
| Crystal Structure | Cubic –la3d |
| Lattice constant | 12.01 Å |
| Density | 4.56 g/cm³ |
| Melting point | 1950℃ |
| Thermal conductivity [@ 25℃] | 0.14 W |
| Specific heat | 0.59 J·g⁻¹·K⁻¹ |
| Thermal expansion rate [@ 25℃] | [100] Orientation–8.2 |
| Thermal expansion rate [@ 25℃] | [110] Orientation–7.7 |
| Thermal expansion rate [@ 25℃] | [111] Orientation–7.8 |
| Hardness | 8.5 Mohs |
| Young's modulus | 317 GPa |
| Shear modulus | 54.66 Gpa |
| Extinction ratio | 25 dB |
| Poisson's ratio | 0.25 |
Key Features
Datasheet
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