STUDIES ON CHROMOPHORE COUPLING IN ISOLATED PHYCOBILIPROTEINS. IV. FEMTOSECOND TRANSIENT ABSORPTION STUDY OF ULTRAFAST EXCITED STATE DYNAMICS IN TRIMERIC PHYCOERYTHROCYANIN COMPLEXES

Autor:	Herbert Zuber, Gerd Schweitzer, Walter Sidler, Alfred R. Holzwarth, Mathias Hucke
Rok vydání:	1993
Předmět:	Chemistry Phycoerythrocyanin General Medicine Chromophore Photochemistry Biochemistry Wavelength chemistry.chemical_compound Excited state Femtosecond Ultrafast laser spectroscopy Physical and Theoretical Chemistry Absorption (electromagnetic radiation) Spectroscopy
Zdroj:	Photochemistry and Photobiology. 57:76-80
ISSN:	1751-1097 0031-8655
Popis:	The excited state dynamics of trimeric phycoerythrocyanin has been studied by two-color femtosecond transient absorption spectroscopy with a time-resolution better than 200 fs. Upon selective excitation of the short-wavelength phycobiliviolin chromophore at 575 nm absorption bleachings are observed. An isotropic ultrafast decay of the initial bleaching of 585±40 fs has been resolved at short detection wavelength (578 nm). Upon stepwise increase of the detection wavelength up to 617 nm, the bleaching showed a delayed rise above 593 nm with τ rise =380-580 fs
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8b3f18f04992c38b864687a967ed2d64 https://doi.org/10.1111/j.1751-1097.1993.tb02258.x Zobrazit plný text záznamu Plný text