Abstract
Much evidence indicates that the primary photoprocess in rhodopsin after it absorbs photons is isomerization. Picosecond experiments1 could not clarify the dynamics of the cis-trans isomerization. The relation of three intermediates (prime- rhodopsin,1,2 hypsorhodopsin,1,3 and bathorhodopsin1) was still unclear because of the limited time resolution of the experiments performed. Recently, two groups have reported femtosecond studies of rhodopsin,4,5 but some of the results of the two studies seem to be inconsistent with each other.
© 1993 Optical Society of America
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