Precision determination of E2/M1 amplitude ratio in atoms from polarization dependence of a two-colour frequency mixing

摘要

The polarization dependence of a two-colour frequency mixing in free atoms may be used for determining the ratio of E2/M1 contributions to an amplitude of a dipole-forbidden radiation transition. The details are presented for Indium and Thallium atoms where this ratio represents an important quantity determining parity nonconservation effects on atomic optical spectrum.