Quantum Beats and Phase Shifts in Two-Dimensional Electronic Spectra of Zinc Naphthalocyanine Monomer and Aggregate

2015 ◽  
Vol 6 (21) ◽  
pp. 4314-4318 ◽  
Author(s):  
Ki-Hee Song ◽  
Munui Gu ◽  
Min-Seok Kim ◽  
Hyeok-Jun Kwon ◽  
Hanju Rhee ◽  
...  
Keyword(s):  
Electronic Spectra ◽  
Phase Shifts ◽  
Quantum Beats ◽  
Two Dimensional

scholarly journals Peak shape analysis of diagonal and off-diagonal features in the two-dimensional electronic spectra of the Fenna–Matthews–Olson complex

2012 ◽  
Vol 370 (1972) ◽  
pp. 3692-3708 ◽  
Author(s):  
Dugan Hayes ◽  
Gregory S. Engel
Keyword(s):  
Energy Transfer ◽  
Electronic Spectra ◽  
Nonlinear Response ◽  
Quantum Beats ◽  
Two Dimensional ◽  
Peak Shape ◽  
Transfer Rates ◽  
Prosthecochloris Aestuarii ◽  
Enormous Amount ◽  
Theoretical Predictions

We have recorded a series of two-dimensional electronic spectra of the Fenna–Matthews–Olson (FMO) complex from Prosthecochloris aestuarii , with several crosspeaks sufficiently resolved to permit a quantitative analysis of both the amplitude and the two-dimensional peak shape. The exponential growth and/or decay of peaks on and off the main diagonal provides information on population transfer rates between pairs of excitons. Quantum beats observed in the amplitudes and shapes of these peaks persist throughout the relaxation process, indicating that energy transfer in FMO involves both incoherent and coherent dynamics. By comparing the oscillations in the amplitude and shape of crosspeaks, we confirm theoretical predictions regarding their correlation and identify previously indistinguishable combinations of nonlinear response pathways that contribute to the signal at particular positions in the spectra. Such analysis is crucial to understanding the enormous amount of information contained in two-dimensional electronic spectra and offers a new route to uncovering a complete description of the energy transfer kinetics in photosynthetic antennae.

scholarly journals Two-dimensional electronic spectroscopy as a tool for tracking molecular conformations in DNA/RNA aggregates

2018 ◽  
Vol 207 ◽  
pp. 233-250 ◽  
Author(s):  
Javier Segarra-Martí ◽  
Vishal K. Jaiswal ◽  
Ana Julieta Pepino ◽  
Angelo Giussani ◽  
Artur Nenov ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Ground State ◽  
Electronic Spectra ◽  
Crucial Role ◽  
Electronic Spectroscopy ◽  
Two Dimensional ◽  
Molecular Conformations ◽  
Computational Strategy

A computational strategy to simulate two-dimensional electronic spectra (2DES) is introduced, which allows characterising ground state conformations of flexible nucleobase aggregates that play a crucial role in nucleic acid photochemistry.

scholarly journals Control of conditional quantum beats in cavity QED: amplitude decoherence and phase shifts

2013 ◽  
Vol 15 (1) ◽  
pp. 013017 ◽  
Author(s):  
A D Cimmarusti ◽  
C A Schroeder ◽  
B D Patterson ◽  
L A Orozco ◽  
P Barberis-Blostein ◽  
...  
Keyword(s):  
Cavity Qed ◽  
Phase Shifts ◽  
Quantum Beats

scholarly journals Doubling of scattering phase shifts for two-dimensional strings

1995 ◽  
Vol 448 (1-2) ◽  
pp. 277-292 ◽  
Author(s):  
Antal Jevicki ◽  
Miao Li ◽  
Tamiaki Yoneya
Keyword(s):  
Phase Shifts ◽  
Two Dimensional ◽  
Scattering Phase ◽  
Scattering Phase Shifts

The origin of absorptive features in the two-dimensional electronic spectra of rhodopsin

2018 ◽  
Vol 20 (18) ◽  
pp. 12746-12754 ◽  
Author(s):  
Marwa H. Farag ◽  
Thomas L. C. Jansen ◽  
Jasper Knoester
Keyword(s):  
Electronic Spectra ◽  
Two Dimensional ◽  
Model Hamiltonian

A three-state three-mode model Hamiltonian reveals the origin of the absorptive features in the two-dimensional electronic spectra of rhodopsin.

Two-dimensional electronic spectra of an aggregating dye: simultaneous measurement of monomeric and dimeric line-shapes

2009 ◽  
Vol 11 (28) ◽  
pp. 5986 ◽  
Author(s):  
Alexandra Nemeth ◽  
Vladimír Lukeš ◽  
Jaroslaw Sperling ◽  
Franz Milota ◽  
Harald F. Kauffmann ◽  
...  
Keyword(s):  
Simultaneous Measurement ◽  
Electronic Spectra ◽  
Two Dimensional ◽  
Line Shapes
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