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Chromium Doped Yttrium Aluminum Garnet (Cr4+:YAG) Crystals


Passive Q-Switching is preferred for simplicity of manufacturing and operation, low cost, and reduced system size and weight. CA4+: YAG (Y3AI5O12) crystals are excellent for passive Q-Switching diode pumped or lamp-pumped Nd: YAG, Nd: YLF, Yb: YAG or other Nd and Yb doped lasers at wavelengths from 1.0 to 1.2mm. Because they are chemically stable, durable, UV resistant, have good thermal conductivity, have a high damage threshold (>500mW/cm2) and ease of operation, they will replace traditional materials such as LiF, organic dye and color centers.


Basic Properties of Cr4+ :YAG

Formula                                                                                       Cr4+: Y3AI5O12

Crystal Structure                                                                         Cubic Garnet

Dopant Level                                                                 0.03 mol% - 0.05 mol%

Hardness                                                                                           8.5 (Mohs)

Damage Threshold                                                                       >500MW/cm2

Refractive Index                                                                       1.82 @1064nm

Capability:

Attribute

Commercial

High Precision

Flatness

λ/4

λ/10

Wavefront Distortion

λ/4

λ/10

Surface Quality

20-10 scratch and dig

10-5 scratch and dig

Additional AR, HR etc. coating are available upon request




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