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. 1981 Feb 27;211(4485):942-4.
doi: 10.1126/science.7466366.

Retinal chromophore of rhodopsin photoisomerizes within picoseconds

G Hayward, W Carlsen, A Siegman, L Stryer

Retinal chromophore of rhodopsin photoisomerizes within picoseconds

G Hayward et al. Science. .

Abstract

A new picosecond resonance Raman technique shows that resonance Raman lines characteristic of a distorted all-trans retinal appear within 30 picoseconds after photolysis of rhodopsin or isorhodopsin. This finding suggests that isomerization is nearly complete within picoseconds of the absorption of a photon.

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