Title :
Excited-state studies of guanine and its derivatives in aqueous solutions by picosecond time resolved emission spectroscopy
Author :
Fujiwara, Toshihito ; Kamoshida, Y. ; Morita, Ryuji ; Yamashita, Masaru
Author_Institution :
Dept. of Eng. Sci., Hokkaido Univ., Sapporo, Japan
Abstract :
Summary form only given. We developed a picosecond time-resolved UV emission spectrometer using the nonlinear frequency-conversion UV pulses (270 nm, /spl sim/200 fs) of a femtosecond Ti:sapphire laser and a highly sensitive synchrotron streak camera. We demonstrate for the first time, to our knowledge, that the apparatus enables us to clarify the emission relaxation mechanisms of guanine, guanosine and guanosine monophosphate aqueous solutions at room temperature.
Keywords :
biomolecular effects of radiation; excited states; fluorescence; high-speed optical techniques; organic compounds; solutions; time resolved spectra; aqueous solution; excited state; femtosecond Ti:sapphire laser; guanine; guanosine; guanosine monophosphate; nonlinear frequency-conversion UV pulses; nucleic acid; picosecond time resolved emission spectroscopy; relaxation; synchrotron streak camera; Absorption; Chemical lasers; Cyclic redundancy check; Laser excitation; Laser tuning; Narrowband; Optical pulses; Pump lasers; Solid lasers; Tunable circuits and devices;
Conference_Titel :
Lasers and Electro-Optics, 1996. CLEO '96., Summaries of papers presented at the Conference on
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-55752-443-2
