Frequency-Dependent Optical Dephasing in the Stoichiometric Material EuP5O14

Abstract
Optical coherent transients are reported here for the first time in a pure, optically concentrated material (EuP5 O14). Qualitatively new behavior is found in the form of a systematic variation of the homogeneous dephasing time T2 (∼ 20 μsec) across the inhomogenously broadened line. This is interpreted as evidence for delocalization of the excitation. In contrast, the dilute impurity system Eu3+: YAlO3 shows narrower lines and no frequency dependence of T2.

This publication has 14 references indexed in Scilit: