Nd yag laser crystal for beauty salon equipment

Nd:YAG Crystal(Nd:Y3Al5O12) is the most widely used solid state laser crystal. Nd:YAG laser crystal are wildly used in all types of solid-state laser systems-frequency-doubled continuous wave, high-energy Q-switched, and so forth. Its good fluorescent lifetime thermal conductivity and physical strengths makes it suitable for high power lamp pumped laser.
Parameters
Doping(atm%): 0.1% ~ 2.5%
Orientation: [111], [100], [110] <±0.5°
Dimension Tolerances: ±0.05 mm
Surface Quality: 10/5 S/D
Parallelism: < 10″
Perpendicularity: < 5′
Clear Aperture: > 90%
Wavefront Distortion: λ/10 @ 632.8 nm
Surface Flatness: < λ/10 @ 632.8 nm
Chamfer: < 0.1 mm @ 45°
Coating: upon customer's request
Damage Threshold: 750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz
Physical and chemical properties
Chemical Formula: Nd:Y3Al5O12
Crystal Structure: Cubic
Lattice Constant: 12.01Å
Density: 4.5g/cm3
Melting Point: 1970°C
Thermal Conductivity (W/m/k@25°C): 0.14 W
Specific Heat/(J/g/K): 0.59
Rupture Stress: 1.3-2.6*103 kg/cm2
Hardness (Mohs): 8.5
Young's Modulus/GPa: 317
Shear Modulus/Gpa: 54.66
Extinction Ratio: 25 dB
Poisson Ratio: 0.25
Optical properties
Laser Transition: 4F3/2 > 4I11/2
Photon Energy: 1.86 10-19J
Laser Transition Wavelength, λl: 1064 nm
Pump Transition Wavelength, λp: 808 nm
Pump Transition Bandwidth, Δλp: <4 nm
Laser Transition Bandwidth, Δλl: ~0.6 nm
Pump Transition Peak Cross Section, σp (E-20 cm2): 6.7
Laser Transition Peak Cross Section, σl (E-20 cm2): 28
Pump Transition Saturation Intensity, φp (kW/cm2): 12
Laser Transition Saturation Intensity, φl (kW/cm2): 2.6
Laser Transition Saturation Fluence, Γl,sat (J/cm2): 0.6
Minimum Pump Intensity, Imin (kW/cm2): ~0
Upper Laser Manifold Lifetime, τ(msec): 0.26
Quantum Defect Fraction: 0.24
Fractional Heat Generation: 0.37
Refractive Index: 1.8197 @1.064 µm
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