Open AccessДостижение субпикосекундного временного разрешения при исследовании процессов анизотропной релаксации биологических молекул
Author(s) -
И.А. Горбунова,
М.Э. Сасин,
О.С. Васютинский
Publication year - 2020
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2020.04.49041.18062
Subject(s) - excited state , femtosecond , polyatomic ion , laser , atomic physics , relaxation (psychology) , molecule , anisotropy , rotational energy , ultrafast laser spectroscopy , materials science , chemistry , optics , physics , psychology , social psychology , organic chemistry
A novel pump-probe method has been developed to study anisotropic relaxation and energy transfer in excited states of polyatomic molecules excited by femtosecond laser pulses. The method was used to study the rotational diffusion of NADH with a temporal resolution of about 0.6 ps. For the first time, absorption from the excited state of biological molecules pumped by laser pulses with energies of 1 nJ was detected