Monitoring polariton dynamics in the LHCII photosynthetic antenna in a microcavity by two-photon coincidence counting

Zhedong Zhang; Prasoon Saurabh; Konstantin E. Dorfman; Arunangshu Debnath; Shaul Mukamel

doi:10.1063/1.5004432

Monitoring polariton dynamics in the LHCII photosynthetic antenna in a microcavity by two-photon coincidence counting

Zhedong Zhang^*, Prasoon Saurabh, Konstantin E. Dorfman^*, Arunangshu Debnath^*, Shaul Mukamel^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

27 Citations (Scopus)

Abstract

The relaxation dynamics of light-harvesting complex II in an optical cavity is explored theoretically by multidimensional photon coincidence counting spectroscopy. This technique reveals the dynamics in both single (e) and double (f) excitation bands. We study how the polariton dynamics are affected by coupling to photon modes and molecular vibrations described by a realistic spectral density at 77 K. Without the cavity, the e- and f-band energy transfer pathways are not clearly resolved due to the line broadening caused by fast exciton dephasing. The strong coupling to cavity photons results in well-resolved polariton modes. The hybrid nature of polaritons slows down their energy transfer rates.

Original language	English
Article number	074302
Journal	Journal of Chemical Physics
Volume	148
Issue number	7
Online published	15 Feb 2018
DOIs	https://doi.org/10.1063/1.5004432
Publication status	Published - 21 Feb 2018
Externally published	Yes

Access Output

10.1063/1.5004432

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{210e718c2c354642b2d54a419842adea,

title = "Monitoring polariton dynamics in the LHCII photosynthetic antenna in a microcavity by two-photon coincidence counting",

abstract = "The relaxation dynamics of light-harvesting complex II in an optical cavity is explored theoretically by multidimensional photon coincidence counting spectroscopy. This technique reveals the dynamics in both single (e) and double (f) excitation bands. We study how the polariton dynamics are affected by coupling to photon modes and molecular vibrations described by a realistic spectral density at 77 K. Without the cavity, the e- and f-band energy transfer pathways are not clearly resolved due to the line broadening caused by fast exciton dephasing. The strong coupling to cavity photons results in well-resolved polariton modes. The hybrid nature of polaritons slows down their energy transfer rates.",

author = "Zhedong Zhang and Prasoon Saurabh and Dorfman, {Konstantin E.} and Arunangshu Debnath and Shaul Mukamel",

year = "2018",

month = feb,

day = "21",

doi = "10.1063/1.5004432",

language = "English",

volume = "148",

journal = "Journal of Chemical Physics",

issn = "0021-9606",

publisher = "American Institute of Physics",

number = "7",

}

TY - JOUR

T1 - Monitoring polariton dynamics in the LHCII photosynthetic antenna in a microcavity by two-photon coincidence counting

AU - Zhang, Zhedong

AU - Saurabh, Prasoon

AU - Dorfman, Konstantin E.

AU - Debnath, Arunangshu

AU - Mukamel, Shaul

PY - 2018/2/21

Y1 - 2018/2/21

N2 - The relaxation dynamics of light-harvesting complex II in an optical cavity is explored theoretically by multidimensional photon coincidence counting spectroscopy. This technique reveals the dynamics in both single (e) and double (f) excitation bands. We study how the polariton dynamics are affected by coupling to photon modes and molecular vibrations described by a realistic spectral density at 77 K. Without the cavity, the e- and f-band energy transfer pathways are not clearly resolved due to the line broadening caused by fast exciton dephasing. The strong coupling to cavity photons results in well-resolved polariton modes. The hybrid nature of polaritons slows down their energy transfer rates.

AB - The relaxation dynamics of light-harvesting complex II in an optical cavity is explored theoretically by multidimensional photon coincidence counting spectroscopy. This technique reveals the dynamics in both single (e) and double (f) excitation bands. We study how the polariton dynamics are affected by coupling to photon modes and molecular vibrations described by a realistic spectral density at 77 K. Without the cavity, the e- and f-band energy transfer pathways are not clearly resolved due to the line broadening caused by fast exciton dephasing. The strong coupling to cavity photons results in well-resolved polariton modes. The hybrid nature of polaritons slows down their energy transfer rates.

UR - http://www.scopus.com/inward/record.url?scp=85042234096&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85042234096&origin=recordpage

U2 - 10.1063/1.5004432

DO - 10.1063/1.5004432

M3 - RGC 21 - Publication in refereed journal

C2 - 29471638

SN - 0021-9606

VL - 148

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

IS - 7

M1 - 074302

ER -

Monitoring polariton dynamics in the LHCII photosynthetic antenna in a microcavity by two-photon coincidence counting

Abstract

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this