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Neodymium Doped Yttrium Aluminum Garnet (Nd:YAG)

Nd:YAG is still the important solid laser material with the most excellent comprehensive properties up to now.

Basic Properties:
    Chemical Formula:
    Nd:Y3Al5O12
    Crystal Structure:
    Cubic
    CLattice Constants:
    12.01
    Melting Point:
    1970°C
    Density:
    4.56 g/cm3
    Mohs Hardness:
    8.5
    Thermal Expansion Coefficient:
    7.8 x 10-6 /K [111], 0 - 250 oC
    Thermal Conductivity Coefficient:
    14 W/m /K @20°C, 10.5 W /m /K @100°C.
    Refractive Index:
    1.82
    Lasing Wavelength:
    1064 nm
    Stimulated Emission Cross-Section:
    2.8x10-19 cm-2
    Relaxation Time of Terminal Lasing Level:
    30 ns
    ARadiative Lifetime:
    550 ms
    Spontaneous Fluorescence:
    230 ms
    Loss Coefficient:
    0.003 cm-1 @ 1064 nm
    Effective Emission Cross Section:
    2.8 x 10-19 cm2
    Absorption band at pump wavelength:
    1 nm
    Linewidth:
    0.6 nm
    Polarized Emission:
    Unpolarized
    Thermal Birefringence:
    High
Main Specifications:
    Dimension:
    Rods: (3~10)mm×(30~180)mm, S-labs: (3~12)mm×(6~24)mm×(60~180)mm
    Nd Dopant Level:
    0.5~1.2(±0.1)atm%
    Wavefront Distortion:
    λ/8
    Orientation:
    <111>±30arc minute
    Surface quality:
    10/5 @MIL-O-13830A
    Flatness:
    λ/8 at 633 nm
    Parallelism:
    < 10 arc sec.
    Diameter tolerance:
    ±0.05mm
    Length tolerance:
    ±0.5mm
    Perpendicularity:
    < 5 arc minutes
    Parameters of Laser:
        Point efficiency of long pulse:
    3.2%(lamp pumped,20J input)
        Slope efficiency of long pulse:
    4.1%
        Interference Fringes:
    ≤0.25/inch
        Extinction Ration:
    ≥30dB
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E-mail: sales@polarbeam.com

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