Herbrich S1, Gericke KH, Smolin AG, Vasyutinskii OS.
J Phys Chem A. 2014 Jul 17;118(28):5248-55. doi: 10.1021/jp505251c. Epub 2014 Jul 7.The paper presents experimental and theoretical studies of two-photon excitation dynamics in 2-methyl-5-tert-butyl-p-quaterphenyl (DMQ) dissolved in cyclohexane/paraffin. Experimentally, a two-color two-photon (2C2P) excitation by two femtosecond laser pulses at 800 and 400 nm has been used in combination with the time-resolved detection of polarized molecular fluorescence. The fluorescence decay was found to be two-exponential, resulting in the molecular excited state lifetime of 753 ± 10 ps and the rotational correlation time of 724 ± 45 ps. Read More