Nd:YAG laser crystal is a popular lasing medium for solid-state lasers. It is made of a crystal structure of yttrium aluminum garnet (YAG) doped with neodymium (Nd) ions. Nd:YAG laser crystal is known for its good fluorescence lifetime, thermal conductivity, and robust nature, making it suitable for high power continuous wave, high intensity q-switched, and single mode operation.
Nd:YAG crystals available from stock or in 4-6 weeks
Description
Nd:YAG laser crystal is a crystal structure of yttrium aluminum garnet (YAG) doped with neodymium (Nd) ions. It is a popular lasing medium for solid-state lasers due to its good fluorescence lifetime, thermal conductivity, and robust nature. Nd:YAG laser crystal is suitable for high power continuous wave, high intensity q-switched, and single mode operation. The neodymium ions provide the lasing activity in the crystal, emitting light at 1064 nm wavelength. Standard sizes of Nd:YAG laser crystals are available in rods with high damage threshold anti-reflective coatings at 1064 nm wavelength.
Nd:YAG laser crystal is widely used in various fields such as medical, military, and industrial applications. In the medical field, crystal is used in laser surgery, including ophthalmology, dermatology, and dentistry. In the military field, it is used in laser range-finding, target designation, and missile defense systems. And in the industrial field, Nd:YAG laser crystal is used in welding, cutting, drilling, and marking of metals, ceramics, and plastics. Nd:YAG laser crystal is also used in scientific research, including spectroscopy, holography, and nonlinear optics.
Nd:YAG laser crystal has several advantages over other laser crystals. It has a high thermal conductivity, which allows it to dissipate heat efficiently, making it suitable for high power laser applications. It has a long fluorescence lifetime, which means that it can store energy for a longer time, resulting in a more efficient laser output. Nd:YAG laser crystal is also robust and resistant to mechanical and thermal shocks, making it suitable for harsh environments.
Specifications
Physical and Thermal Properties
| Chemical formula | Nd3+:Y3Al5O12 (Nd-doped yttrium aluminum garnet) |
| Typical dopant concentrations | 0.4 – 1.2 at. % |
| Crystal structure | cubic |
| Lattice constants | a = 12.01 Å |
| Typical orientation | [111] |
| Density | 4.56 g/cm3 |
| Mohs hardness | 8.5 |
| Melting point | 1970 °C |
| Refractive index (at 1064 nm) | n = 1.8197 |
| Thermal conductivity (at 293 K) | K = 14 W/(mxK) |
| Specific heat (at 300 K) | C = 0.59 J/(gxK) |
| Termal expansion coefficients (0-250 °C) | α[111] = 7.8 x 10-6 °C-1 |
| dn/dT | 7.3 × 10-6 °C-1 |
Spectroscopic Properties
| Absorption peak wavelength | 808 nm |
| Absorption cross-section at peak wavelength | 6.7 × 10-20 cm2 |
| Absorption bandwidth (FWHM) | 2.5 nm |
| Emission wavelength | 1064 nm |
| Emission cross-section at 1064 nm | 7.5 × 10-19 cm2 |
| Fluorescence lifetime | 230 μs |
Standard Manufacturing Specifications
| Cut orientation error: | +/- 30 arcmin |
| Aperture dimensions tolerance: | +0.0/-0.1 mm |
| Length tolerance: | +/-0.2 mm |
| Clear aperture: | >/= 90 % |
| Surface quality: | 10-5 S-D |
| Surface flatness: | < λ/10 @ 633 nm |
| Parallelism error: | < 20 arcsec |
| Perpendicularity error: | +/- 5 arcmin |
Standard Products
Product | Doping | Orientation | Dimensions | Length | Wedge | Coatings | Price | Delivery | Quantity | |
|---|---|---|---|---|---|---|---|---|---|---|
Nd-YAG-0.8-D3-10-AR | 0.8 at.% | [111] | Ø 3 mm | 10 mm | < 20 arcsec | AR/AR R < 0.2% (1064 nm) | 342.00$ | 4-6 weeks | ||
Nd-YAG-1.1-D3-10-AR | 1.1 at.% | [111] | Ø 3 mm | 10 mm | < 20 arcsec | AR/AR R < 0.2% (1064 nm) | 342.00$ | 4-6 weeks | ||
Nd-YAG-0.8-D5-10-AR | 0.8 at.% | [111] | Ø 5 mm | 10 mm | < 20 arcsec | AR/AR R < 0.2% (1064 nm) | 410.40$ | 4-6 weeks | ||
Nd-YAG-1.1-D5-10-AR | 1.1 at.% | [111] | Ø 5 mm | 10 mm | < 20 arcsec | AR/AR R < 0.2% (1064 nm) | 410.40$ | 4-6 weeks | ||
Nd-YAG-0.8-D5-20-AR | 0.8 at.% | [111] | Ø 5 mm | 20 mm | < 20 arcsec | AR/AR R < 0.2% (1064 nm) | 460.80$ | 4-6 weeks | ||
Nd-YAG-1.1-D5-20-AR | 1.1 at.% | [111] | Ø 5 mm | 20 mm | < 20 arcsec | AR/AR R < 0.2% (1064 nm) | 460.80$ | 2 weeks | ||
Nd-YAG-0.8-D4-10-AR | 0.8 at.% | [111] | Ø 4 mm | 10 mm | < 20 arcsec | AR/AR R < 0.2% (1064 nm) | 469.20$ | 4-6 weeks | ||
Nd-YAG-1.1-D4-10-AR | 1.1 at.% | [111] | Ø 4 mm | 10 mm | < 20 arcsec | AR/AR R < 0.2% (1064 nm) | 469.20$ | 4-6 weeks | ||
Nd-YAG-1.1-D3-50-AR | 1.1 at.% | [111] | Ø 3 mm | 50 mm | < 30 arcsec | AR/AR R < 0.2% (1064 nm) | 476.40$ | from stock | ||
Nd-YAG-0.8-D3-50-AR | 0.8 at.% | [111] | Ø 3 mm | 50 mm | < 20 arcsec | AR/AR R < 0.2% (1064 nm) | 476.40$ | 4-6 weeks |
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