Abstract

The saturation of the absorption of Cr⁴⁺: YAG at 1.064 μm has been shown to depend on the polarization of the optical field relative to the crystallographic axes.^1,2 This has been interpreted as evidence that there are three sets of Cr⁴⁺ centers whose dipole moments for transition from the ground state to the excited state are aligned parallel to the crystallographic axes [010], [001] and [100] of the YAG host.

© 1996 Optical Society of America