Abstract

Optical hole-burning (HB) of inhomogeneously broadened absorption lines in solids has been of recent interest both for technological and scientific resons. The use of HB for digital (frequency^[1] and time domain^[2]) and analogue^[3] information storage and processing is presently under development. In part, this activity has prompted a closer look at the fundamental origins of the optical dephasing time T₂ of impurity atoms and molecules in soldis. T₂ is important for information storage since it is the ratio of inhomogeneous to homogeneous linewidths that determines the storage Capacity

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