Coherent Oscillations in Chlorosome Elucidated by Two-Dimensional Electronic Spectroscopy

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dc.contributor.authorJun, Sunhongko
dc.contributor.authorYang, Cheolheeko
dc.contributor.authorIsaji, Megumiko
dc.contributor.authorTamiaki, Hitoshiko
dc.contributor.authorKim, Jeonghoko
dc.contributor.authorIhee, Hyotcherlko
dc.date.accessioned2019-03-08T03:11:06Z-
dc.date.available2019-03-08T03:11:06Z-
dc.date.created2014-06-03-
dc.date.issued2014-04-
dc.identifier.citationJOURNAL OF PHYSICAL CHEMISTRY LETTERS, v.5, no.8, pp.1386 - 1392-
dc.identifier.issn1948-7185-
dc.identifier.urihttp://hdl.handle.net/10203/251012-
dc.description.abstractChlorosomes are the most efficient photosynthetic light-harvesting complexes found in nature and consist of many bacteriochlorophyll (BChl) molecules self-assembled into supramolecular aggregates. Here we elucidate the presence and the origin of coherent oscillations in chlorosome at cryogenic temperature using 2D electronic spectroscopy. We observe coherent oscillations of multiple frequencies superimposed on the ultrafast amplitude decay of 2D spectra. Comparison of oscillatory features in the rephasing and nonrephasing 2D spectra suggests that an oscillation of 620 cm(-1) frequency arises from electronic coherence. However, this coherent oscillation can be enhanced by vibronic coupling with intermolecular vibrations of BChl aggregate, and thus it might originate from vibronic coherence rather than pure electronic coherence. Although the 620 cm(-1) oscillation dephases rapidly, the electronic (or vibronic) coherence may still take part in the initial step of energy transfer in chlorosome, which is comparably fast.-
dc.languageEnglish-
dc.publisherAMER CHEMICAL SOC-
dc.subjectLIGHT-HARVESTING COMPLEXES-
dc.subjectPHOTOSYNTHETIC MARINE-ALGAE-
dc.subjectEXCITATION-ENERGY TRANSFER-
dc.subjectGREEN SULFUR BACTERIA-
dc.subjectQUANTUM COHERENCE-
dc.subjectCHLOROBIUM-TEPIDUM-
dc.subjectFEMTOSECOND SPECTROSCOPY-
dc.subjectVIBRATIONAL COHERENCE-
dc.subjectSOLID-STATE-
dc.subjectSPECTRA-
dc.titleCoherent Oscillations in Chlorosome Elucidated by Two-Dimensional Electronic Spectroscopy-
dc.typeArticle-
dc.identifier.wosid000334731700016-
dc.identifier.scopusid2-s2.0-84899002791-
dc.type.rimsART-
dc.citation.volume5-
dc.citation.issue8-
dc.citation.beginningpage1386-
dc.citation.endingpage1392-
dc.citation.publicationnameJOURNAL OF PHYSICAL CHEMISTRY LETTERS-
dc.identifier.doi10.1021/jz500328w-
dc.contributor.localauthorIhee, Hyotcherl-
dc.contributor.nonIdAuthorIsaji, Megumi-
dc.contributor.nonIdAuthorTamiaki, Hitoshi-
dc.contributor.nonIdAuthorKim, Jeongho-
dc.type.journalArticleArticle-
dc.subject.keywordPlusLIGHT-HARVESTING COMPLEXES-
dc.subject.keywordPlusEXCITATION-ENERGY TRANSFER-
dc.subject.keywordPlusPHOTOSYNTHETIC MARINE-ALGAE-
dc.subject.keywordPlusGREEN SULFUR BACTERIA-
dc.subject.keywordPlusQUANTUM COHERENCE-
dc.subject.keywordPlusCHLOROBIUM-TEPIDUM-
dc.subject.keywordPlusFEMTOSECOND SPECTROSCOPY-
dc.subject.keywordPlusVIBRATIONAL COHERENCE-
dc.subject.keywordPlusSOLID-STATE-
dc.subject.keywordPlusSPECTRA-
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