Coherence and population dynamics of chlorophyll excitations in FCP complex: Two-dimensional spectroscopy study.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Standard

Coherence and population dynamics of chlorophyll excitations in FCP complex: Two-dimensional spectroscopy study. / Butkus, Vytautas; Gelzinis, Andrius; Augulis, Ramūnas; Gall, Andrew; Büchel, Claudia; Robert, Bruno; Zigmantas, Donatas; Valkunas, Leonas; Abramavicius, Darius.

I: Journal of Chemical Physics, Vol. 142, Nr. 21, 212414, 2015.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Harvard

Butkus, V, Gelzinis, A, Augulis, R, Gall, A, Büchel, C, Robert, B, Zigmantas, D, Valkunas, L & Abramavicius, D 2015, 'Coherence and population dynamics of chlorophyll excitations in FCP complex: Two-dimensional spectroscopy study.', Journal of Chemical Physics, vol. 142, nr. 21, 212414. https://doi.org/10.1063/1.4914098

APA

Butkus, V., Gelzinis, A., Augulis, R., Gall, A., Büchel, C., Robert, B., ... Abramavicius, D. (2015). Coherence and population dynamics of chlorophyll excitations in FCP complex: Two-dimensional spectroscopy study. Journal of Chemical Physics, 142(21), [212414]. https://doi.org/10.1063/1.4914098

CBE

MLA

Vancouver

Author

Butkus, Vytautas ; Gelzinis, Andrius ; Augulis, Ramūnas ; Gall, Andrew ; Büchel, Claudia ; Robert, Bruno ; Zigmantas, Donatas ; Valkunas, Leonas ; Abramavicius, Darius. / Coherence and population dynamics of chlorophyll excitations in FCP complex: Two-dimensional spectroscopy study. I: Journal of Chemical Physics. 2015 ; Vol. 142, Nr. 21.

RIS

TY - JOUR

T1 - Coherence and population dynamics of chlorophyll excitations in FCP complex: Two-dimensional spectroscopy study.

AU - Butkus, Vytautas

AU - Gelzinis, Andrius

AU - Augulis, Ramūnas

AU - Gall, Andrew

AU - Büchel, Claudia

AU - Robert, Bruno

AU - Zigmantas, Donatas

AU - Valkunas, Leonas

AU - Abramavicius, Darius

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)

PY - 2015

Y1 - 2015

N2 - Energy transfer processes and coherent phenomena in the fucoxanthin-chlorophyll protein complex, which is responsible for the light harvesting function in marine algae diatoms, were investigated at 77 K by using two-dimensional electronic spectroscopy. Experiments performed on femtosecond and picosecond timescales led to separation of spectral dynamics, witnessing evolutions of coherence and population states of the system in the spectral region of Qy transitions of chlorophylls a and c. Analysis of the coherence dynamics allowed us to identify chlorophyll (Chl) a and fucoxanthin intramolecular vibrations dominating over the first few picoseconds. Closer inspection of the spectral region of the Qy transition of Chl c revealed previously not identified, mutually non-interacting chlorophyll c states participating in femtosecond or picosecond energy transfer to the Chl a molecules. Consideration of separated coherent and incoherent dynamics allowed us to hypothesize the vibrations-assisted coherent energy transfer between Chl c and Chl a and the overall spatial arrangement of chlorophyll molecules.

AB - Energy transfer processes and coherent phenomena in the fucoxanthin-chlorophyll protein complex, which is responsible for the light harvesting function in marine algae diatoms, were investigated at 77 K by using two-dimensional electronic spectroscopy. Experiments performed on femtosecond and picosecond timescales led to separation of spectral dynamics, witnessing evolutions of coherence and population states of the system in the spectral region of Qy transitions of chlorophylls a and c. Analysis of the coherence dynamics allowed us to identify chlorophyll (Chl) a and fucoxanthin intramolecular vibrations dominating over the first few picoseconds. Closer inspection of the spectral region of the Qy transition of Chl c revealed previously not identified, mutually non-interacting chlorophyll c states participating in femtosecond or picosecond energy transfer to the Chl a molecules. Consideration of separated coherent and incoherent dynamics allowed us to hypothesize the vibrations-assisted coherent energy transfer between Chl c and Chl a and the overall spatial arrangement of chlorophyll molecules.

U2 - 10.1063/1.4914098

DO - 10.1063/1.4914098

M3 - Article

VL - 142

JO - Journal of Chemical Physics

T2 - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 21

M1 - 212414

ER -