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VOLUME 37 (1983) | ISSUE 5 | PAGE 201
Contraction of, and hole burning in, a phosphorescence line corresponding to the forbidden T_1\leftrightarrow S_0 transition in the spectrum of pyrene in a glassy matrix
For the first time, a hole has been burned photochemically in the inhomogeneously broadened 0-0 spectrum of the Ti<—S0 transition of a complex organic molecule, specifically, the system of pyrene in a glassy matrix of butyl bromide (Py-BrBu), at 1.8 and 4.2 K. The results are compared with the resonant laser excitation of the phosphorescence spectrum.