Abstract

The first step in vision, the cis-trans isomerization of the chromophore in the retinal pigment rhodopsin, is a highly efficient chemical reaction which is initiated by the absorption of a single photon.1 The molecular dynamics of this important photochemical process were recently resolved for the first time using 10 fs blue-green optical pulses.2,3 These measurements revealed that the formation of the primary photoproduct is essentially complete in only 200 fs. The unprecedented speed of this reaction raises a number of questions about the fundamental processes which drive the isomerization.

© 1994 Optical Society of America

PDF Article
More Like This
Conical Intersection Dynamics in a Rhodopsin analog: 9-cis Isorhodopsin

D. Polli, D. Brida, C. Manzoni, K. M. Spillane, M. Garavelli, P. Kukura, R. A. Mathies, and G. Cerullo
EG2_2 European Quantum Electronics Conference (EQEC) 2011

The primary photoisomerization in vision occurs in femtoseconds

R. A. Mathies, R. W. Schoenlain, L. A. Peteanu, and C. V. Shank
QWF3 Quantum Electronics and Laser Science Conference (QELS) 1992

Conical Intersection Dynamics in a Rhodopsin analog: 9-cis Isorhodopsin

Dario Polli, Daniele Brida, Cristian Manzoni, Katelyn M. Spillane, Marco Garavelli, Philipp Kukura, Richard A. Mathies, and Giulio Cerullo
JThB42 CLEO: Applications and Technology (CLEO_AT) 2011

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription