Material
Cr:YAG
Chromium doped Yttrium Aluminium Garnets (Cr:YAG or Cr4+:YAG) are laser crystals that serve as Q-switch optics for passively Q-switched diode- or lamp-pumped Nd:YAG, Nd:YLF, Yb:YAG lasers. Cr:YAG can also function as Q-switch optics for other Nd and Yb doped lasers with a wavelength between 1.0 µm and 1.2 µm.
Cr:YAG is a chemically stable material and stable to UV radiation. Together with the high damage threshold of the crystal, it is possible to replace established materials such as LiF or organic dyes for passive Q-switching with Cr:YAG. The thermal properties of the garnets are suitable for high medium power applications. The material can also be diffusion bonded with Nd:YAG crystals or undoped YAG.
Properties
Optische Eigenschaften | |
|---|---|
Transmissionsbereich in µm | 0,95‐1,12
|
Brechungsindex @1064 nm | 1,82 |
initiale Transmission in % | 10-99
|
initialer Absorptionskoeffizient in cm-1 | 0,05-3
|
optische Zerstörschwelle in MW/cm2 | 500-1000
|
Physikalische Eigenschaften | |
|---|---|
Dichte in g/cm3 | 4,56
|
Kristallstruktur | kubisch |
Temperaturbereich in °C | -60 ‐ +60
|
Thermische Leitfähigkeit in W/(m · K) | 12,13
|
Mohs Härte | 8,5 |
Wiederherstellungszeit in µs | 8,5
|
Fluoreszenzlebensdauer in µs | 3,4 |
Available products
