Direct observation of the conical intersection in cis-trans photoisomerization of rhodopsin

Author

Polli, Dario ; Manzoni, Cristian ; Brida, Daniele ; Cerullo, Giulio ; Altoe, Piero ; Tomasello, Gaia ; Orlandi, Giorgio ; Garavelli, Marco ; Weingart, Oliver ; Kukura, Philipp ; Spillane, Katelyn ; Mathies, Richard A.

Author_Institution

Dipt. di Fis., Politec. di Milano, Milan, Italy

fYear

2009

fDate

2-4 June 2009

Firstpage

1

Lastpage

2

Abstract

High-time-resolution broadband pump-probe spectroscopy of rhodopsin reveals the loss of reactant and appearance of photoproduct features within ap100 fs, which are signatures of a wavepacket moving through a conical intersection. Experiments are supported by molecular dynamics simulations.

Keywords

isomerisation; photochemistry; proteins; cis-trans photoisomerization; conical intersection; high-time-resolution broadband pump-probe spectroscopy; molecular dynamics simulations; photoproduct features; rhodopsin; wavepacket moving; Chemistry; Optical pulses; Optical pumping; Photochemistry; Probes; Pulse amplifiers; Retina; Spectroscopy; Stationary state; Ultrafast optics; (300.6390) Spectroscopy, molecular; (320.7150) Ultrafast spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on

Conference_Location

Baltimore, MD

Print_ISBN

978-1-55752-869-8

Electronic_ISBN

978-1-55752-869-8

Type

conf

Filename

5225796