Incorporation of angular momentum anisotropy into the analysis of resonant four-wave mixing spectroscopy

Abstract

A state-multipole expansion of the zero-order density operator has been used to derive analytical signal expressions for near-resonant degenerate four-wave mixing spectroscopy performed on systems that possess angular momentum anisotropy. The predictions of this formalism are found to be in good agreement with experimental optical-optical double resonance measurements involving aligned intermediate states. © 1997 American Institute of Physics.