Chromium Doped Yttrium Aluminium Garnet (Cr4+: YAG)
Passive Q-Switching is preferred for simplicity of manufacturing and operation, low cost, and reduced system size and weight. Cr4+: YAG (Y3Al5O12) 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
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Formula
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Cr4: Y3AI5O12
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Crystal Structure
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Cubic Garnet
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Dopant Level
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0.03 mol% - 0.05 mol%
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Hardness
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8.5 (Mohs)
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Damage Threshold
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>500MW/cm2
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Refractive Index
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1.82 @1064nm
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