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        产品详细
        • 产品名称: Er:YAG
        • 产品编号: Er:YAG
        • 浏览次数: 819

         

        Er:YAG is an excellent laser crystal which lases at 2.94 μm,This wavelength is the most readily absorbed into water and hydroxylapatite of all existing wavelengths and is considered a highly surface cutting laser.It has wide applications in medical applications,such as dental (hard tissues),orthopedics,etc.

        Advantages of Er:YAG Crystal

        * High slope efficiency
        * Operate well at room temperature
        * Operate in a relatively eye-safe wavelength range

        Material and Specifications

        Dopant concentration

        Er: ~50 at%

        Wavefront Distortion

        ≤0.125λ/inch(@1064nm)

        Extinction Ratio

        ≥25 dB

        Rod Sizes

        Diameter:3~6mm, Length:50~120 mm 
        Upon request of customer

        Dimensional Tolerances

        Diameter:+0.000"/-0.002", 
        Length: ± 0.02" 

        Barrel Finish

        Ground Finish: 400# Grit

        Parallelism

        ≤10"

        Perpendicularity

        ≤5′

        Flatness

        λ/10

        Surface Quality

        10/5(MIL-PRF-13830B)

        Chamfer

        0.006"±0.002" at 45°± 5°

        AR Coating Reflectivity

        ≤ 0.25% (@2940nm)

        Optical and spectral Properties of Er:YAG Crystal

        Laser Transition

        4I11/2 to 4I13/2

        Laser Wavelength

        2940nm

        Photon Energy

        6.75×10-20J(@2940nm)

        Emission Cross Section

        3×10-20 cm2

        Index of Refraction

        1.79 @2940nm

        Pump Bands

        600~800 nm