Al2O3:Ti3+ - titanium-doped sapphire crystals combine supreme physical and optical properties

with broadest lasing range, It's indefinitely long stability and useful lifetime added to the lasing

over entire band of 660-1050 nm challenge "dirty" dyes in variety of applications.

The absorption band of Ti:Sapphire centered at 490 nm makes it suitable for variety of laser

pump sources - argon ion, frequency doubled Nd:YAG and YLF, copper vapour lasers. Because

of 3.2 μs fluorescence lifetime Ti:Sapphire crystals can be effectively pumped by short pulse

flashlamps in powerful laser systems.

Chemical formula	Ti3+: Al2O3
Crystal structure	Hexagonal
Melting point	2050 °C
Density	3.98 g/cm3
Mohs hardness	9
Thermal conductivity	0.11 cal/(°C x sec x cm)
Specific heat	0.10 cal/g
Laser action	4-Level Vibronic
Lattice constants	a = 4.748, c = 12.957
Fluorescence lifetime	3.2 μsec (T = 300 K)
Tuning range	660-1050 nm
Absorbtion range	400-600 nm
Emission peak	795 nm
Absorption peak	488 nm
Refractive index	1.76 @ 800 nm

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