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Nd YAP Laser Crystals

    Buy cheap Nd YAP Laser Crystals from wholesalers
     
    Buy cheap Nd YAP Laser Crystals from wholesalers
    • Buy cheap Nd YAP Laser Crystals from wholesalers
    • Buy cheap Nd YAP Laser Crystals from wholesalers
    • Buy cheap Nd YAP Laser Crystals from wholesalers
    • Buy cheap Nd YAP Laser Crystals from wholesalers

    Nd YAP Laser Crystals

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    Brand Name : CRYLINK
    Certification : Iso9001
    Price : negotiation
    Delivery Time : 3-4 weeks
    Payment Terms : TT
    Supply Ability : 100 pieces /month
    Model Number : CRYLINK-Nd YAP Laser Crystal
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    Nd YAP Laser Crystals

    The chemical formula of Nd: YAP is Nd3+: YAlO3, and the structure is distorted perovskite, belonging to oblique hexagonal crystal system, and spatial group is Pbnm, whose axes a, b and c are perpendicular to each other, belongs to negative uniaxial crystals and is anisotropic. Among the numerous neodymium-doped laser crystals, Nd: YAP crystal not only has high thermal conductivity, but also has a larger excited emission cross section at 4F3/24 I13/2 transition. They are one of the most effective laser crystals known at present for the high-power operation at the 1300nm, the crystal is mainly pumped by LD. 1300nm lasers are widely used in the field of medicine, optical fiber communication and military. What’ s more, water molecule has good absorption at this laser band. Which makes it have a very good hemostatic ability, and widely used in laser therapy, such as hemostasis, neurosurgery, resection of pathological tissues and wrinkle removal. In addition, Nd: YAP crystal has natural birefringence characteristics, which is very beneficial to overcome the thermal depolarization and nonlinear frequency transformation of laser.

    Parameter

    Material and Specifications
    MaterialsNd: YAP
    Orientation<5°
    Parallelism≤10
    Perpendicularity≤5′
    Surface Quality10-5 (MIL-O-13830A)
    Wavefront Distortion/8 @ 633nm
    Surface Flatness≤ /10 @632.8nm
    Clear Aperture>95 %
    Length tolerance+0.5/-0mm
    Thickness/Diameter Tolerance±0.05 mm
    Damage Threshold≥500MW/cm2
    Physical and Chemical Properties
    Crystal Structureorthorhombic Pbnm
    Lattice Constantsa=5,176, b=5,307, c=7,355
    Density5,35 g/cm3
    Melting Point1870°C
    Thermal Conductivity0,11 W/(cm K)
    Thermal Optical Coefficient(dn/dT)na:9.7×10-6 K-1 nc:14.5×10-6 K-1
    Thermal Expansion/(10-6K-1@25°C)9.5 (a axis), 4.3(b axis), 10.8(c axis)
    Hardness (Mohs)8.5
    Shear Modulus /Gpa2.2×1012 dyn/cm2
    Specific Heat400 J/(kg K)
    Linear dispersion n/T [10-6K-1]9.7 (na)
    Optical and Spectral Properties
    Laser Transition4F3/24I9/2 930 nm 4F3/24I11/2 1079 nm
    4F3/24I13/2 1340 nm 4F3/24I13/2 1432 nm
    Laser Wavelength930nm 1079nm 1340nm
    Fluorescence Lifetime170ms
    Refractive index @1064 nmna=1,929, nb=1,943, nc=1,952

    Absorption and Emission Spectrum Emission Cross Section

    Wavelength (nm)Emission Cross Section 10-19cm2
    a-cutb-cutc-cut
    10792.051.761.38
    13401.130.970.78
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    laser material

      

    titanium doped sapphire

      
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