Abstract

Persistent spectral hole-burning (PSHB) phenomena have been investigated extensively. Using the PSHB phenomena, we can study a variety of interactions, including excited-state dephasing processes, host-guest dynamics, relaxation mechanisms for vibrational modes and photochemical mechanisms at low temperature. At the same time, the fact that persistent spectral holes can be used to store digital signals has been led to the study of materials for optical data storage, holography and related possible application.¹ The PSHB phenomena had been found in dye molecules in polymer, transition-metal ions in glass and so on.

© 1995 IEEE