Nd:YAG
Nd:YAG (neodymium-doped yttrium aluminium garnet; Nd:Y3Al5O12) is a crystal that is used as a lasing medium for solid-state lasers. The dopant, triply ionized neodymium, typically replaces yttrium in the crystal structure of the yttrium aluminium garnet, since they are of Nd:YAG rod is an excellent laser crystal for high energy application, it has a high thermal conductivity, and good optical quality.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Dimension tolerance | ±0.1mm |
| Angle tolerance | 0.5° |
| Surface flatness [632.8nm] | l/8@632.8nm |
| Wavefront distortion [632.8nm] | l/8@632.8nm |
| Surface quality | 20-10 |
| Parallelism | <20 arcsec |
| Perpendicularity | <5 arcmin |
| Clear aperture | >85% |
| Crystal structure | Cubic |
| Lattice parameters | A=B=C=12.01A |
| Density | 4.56g/cm³ |
| Density | 4.64g/cm³ |
| Melting point | 1970℃ |
| Mohs hardness | 8.5 |
| Thermal expansion coefficient [[111]] | 7.8 x10⁻⁶/℃ [111] |
| Thermal conductivity [20℃] | 14w/m/k @20℃ |
| Refractive index | 1.82 |
| Lasing wavelength | 1064nm |
| Stimulated emission cross-section [1064nm] | 2.8x10⁻¹⁹cm⁻² @1064nm |
| Relaxation time of terminal | 30ns |
| Spontaneous fluorescent [1 atomic %Nd] | 230ms 1 atomic %Nd |
| Radiative lifetime | 550ms |
| Loss coefficient [1064nm] | 0.003 cm⁻¹ @1064nm |
| Absorption band at pump wavelength | 1nm |
| Pump wavelength | 807.5nm |
| Polarized emission | unpolarized |
Datasheet
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Supplier Information
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