OPTICAL SUPERRADIANCE IN A CRYSTAL OF BIPHENYL WITH PYRENE

The results of theoretical and experimental superradiance studies in a pyrene-doped biphenyl crystal are presented. The superradiance nature of photon emission under certain conditions is experimentally proved for this crystal system. Experimental data fit the theory. The influen ce of induced radiation and of electron-phonon coupling on optical sup erradiance is theoretically investigated using the nonequilibrium stat istical operator method. Possible superradiance applications are discu ssed, including coherent nonlinear spectroscopy, coherent electromagne tic pulse generation, and superradiant echo.