Environmentally improved coherent light harvesting

Stefano Tomasi, Dominic M. Rouse, Erik M. Gauger, Brendon W. Lovett, Ivan Kassal

Research output: Contribution to journalLetterpeer-review

Abstract

Coherence-enhanced light harvesting has not been directly observed experimentally, despite theoretical evidence that coherence can significantly enhance light-harvesting performance. The main experimental obstacle has been the difficulty in isolating the effect of coherence in the presence of confounding variables. Recent proposals for externally controlling coherence by manipulating the light’s degree of polarization showed that coherent efficiency enhancements would be possible, but they were restricted to light-harvesting systems weakly coupled to their environment. Here, we show that increases in system–bath coupling strength can amplify coherent efficiency enhancements, rather than suppress them. This result dramatically broadens the range of systems that could be used to conclusively demonstrate coherence-enhanced light harvesting or to engineer coherent effects into artificial light-harvesting devices.
Original languageEnglish
Pages (from-to)6143–6151
Number of pages9
JournalJournal of Physical Chemistry Letters
Volume12
Issue number26
Early online date28 Jun 2021
DOIs
Publication statusPublished - 8 Jul 2021

Keywords

  • physics.chem-ph
  • physics.optics
  • quant-ph

ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry

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