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HoloWiki - A Holography FAQ β

Cr4:YAG

Cr4+:YAG Passive Q-Switch

  • Formula: Cr4+:Y3Al5O12
  • Crystal Structure: Cubic Garnet
  • Density: 4.56 g/cm3
  • Hardness: 8.5 (Mohs)
  • Damage Threshold: > 500 MW/cm2
  • Refractive Index: 1.82 @ 1064 nm
  • Recovery Time 8.5 ┬Ás
  • Repetition Rate > 30 Hz
  • Orientation <111> cubic
  • Absorption of Ground State Level 5.7x10-18 cm2
  • Absorption of Exited State Level 8.0x10-19 cm2

Available in initial transmissions of T=40% to T=99% and thicknesses up to 5mm. Maximum transmission is at a fluence of around .6 J/cm^2.