Mechanisms of Molecular Response in the Optimal Control of Photoisomerization

Benjamin Dietzek, Ben Brüggemann, Torbjörn Pascher, and Arkady Yartsev
Phys. Rev. Lett. 97, 258301 – Published 20 December 2006

Abstract

We report on adaptive feedback control of photoinduced barrierless isomerization of 1,1’-diethyl-2,2’-cyanine in solution. We compare the effect of different fitness parameters and show that optimal control of the absolute yield of isomerization (photoisomer concentration versus excitation photons) can be achieved, while the relative isomerization yield (photoisomer concentration versus number of relaxed excited-state molecules) is unaffected by adaptive feedback control. The temporal structure of the optimized excitation pulses allows one to draw clear mechanistic conclusions showing the critical importance of coherent nuclear motion for the control of isomerization.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 20 June 2006

DOI:https://doi.org/10.1103/PhysRevLett.97.258301

©2006 American Physical Society

Authors & Affiliations

Benjamin Dietzek*, Ben Brüggemann, Torbjörn Pascher, and Arkady Yartsev

  • Department of Chemical Physics, Lund University, P.O. Box 124, 22100 Lund, Sweden

  • *Electronic address: benjamin.dietzek@chemphys.lu.se

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 97, Iss. 25 — 22 December 2006

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×