DYNAMIC STUDIES OF DEGENERATE 4-WAVE-MIXING IN AN AZOBENZENE-DOPED POLYMER FILM WITH AN OPTICAL PUMP

Degenerate four-wave-mixing was performed in azobenzene-doped polymeth yl methacrylate film under a low power continuous-wave laser at 632.8 nm with a pulsed pump laser of 532 nm. Different temporal profiles of the degenerate four-wave-mixing signal were observed under, different pump energies, which originated from the relaxation processes between the energy levels of azobenzene during the photoisomerization, especia lly the transferring processes between the triplet states of the two i somers, trans and cis. (C) 1995 American Institute of Physics.