Double-crossed polarization transient grating for distinction and characterization of coherences
Paleček, David LU and Zigmantas, Donatas LU
(2018)
In Optics Express
26(25).
p.32900-32907
- Abstract
Coherent phenomena have been widely suggested to play a role in efficient photosynthetic light harvesting and charge separation processes. To substantiate these ideas, separation of intramolecular vibrational coherences from purely electronic or mixed vibronic coherences is essential. To this end, polarization-controlled two-dimensional electronic spectroscopy has been shown to provide an effective selectivity. We show that analogous discrimination can be achieved in a transient grating experiment by employing the double-crossed polarization scheme. This is demonstrated in a study of bacterial reaction centers. Significantly faster acquisition times of these experiments make longer population time scans feasible, thereby achieving... (More)
Coherent phenomena have been widely suggested to play a role in efficient photosynthetic light harvesting and charge separation processes. To substantiate these ideas, separation of intramolecular vibrational coherences from purely electronic or mixed vibronic coherences is essential. To this end, polarization-controlled two-dimensional electronic spectroscopy has been shown to provide an effective selectivity. We show that analogous discrimination can be achieved in a transient grating experiment by employing the double-crossed polarization scheme. This is demonstrated in a study of bacterial reaction centers. Significantly faster acquisition times of these experiments make longer population time scans feasible, thereby achieving improved frequency resolution and allowing for accurate extraction of coherence frequencies and dephasing times. These parameters are crucial for the discussion on relevance of the measured coherences to energy or electron transfer phenomena.
(Less)
- author
- Paleček, David
LU
and Zigmantas, Donatas
LU
- organization
- publishing date
- 2018
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Optics Express
- volume
- 26
- issue
- 25
- pages
- 8 pages
- publisher
- Optical Society of America
- external identifiers
-
- scopus:85058168713
- ISSN
- 1094-4087
- DOI
- 10.1364/OE.26.032900
- language
- English
- LU publication?
- yes
- id
- 9d6b2804-87a8-45a3-8277-56177fdd1994
- date added to LUP
- 2018-12-18 13:21:20
- date last changed
- 2023-09-22 14:44:12
@article{9d6b2804-87a8-45a3-8277-56177fdd1994,
abstract = {{<p>Coherent phenomena have been widely suggested to play a role in efficient photosynthetic light harvesting and charge separation processes. To substantiate these ideas, separation of intramolecular vibrational coherences from purely electronic or mixed vibronic coherences is essential. To this end, polarization-controlled two-dimensional electronic spectroscopy has been shown to provide an effective selectivity. We show that analogous discrimination can be achieved in a transient grating experiment by employing the double-crossed polarization scheme. This is demonstrated in a study of bacterial reaction centers. Significantly faster acquisition times of these experiments make longer population time scans feasible, thereby achieving improved frequency resolution and allowing for accurate extraction of coherence frequencies and dephasing times. These parameters are crucial for the discussion on relevance of the measured coherences to energy or electron transfer phenomena.</p>}},
author = {{Paleček, David and Zigmantas, Donatas}},
issn = {{1094-4087}},
language = {{eng}},
number = {{25}},
pages = {{32900--32907}},
publisher = {{Optical Society of America}},
series = {{Optics Express}},
title = {{Double-crossed polarization transient grating for distinction and characterization of coherences}},
url = {{http://dx.doi.org/10.1364/OE.26.032900}},
doi = {{10.1364/OE.26.032900}},
volume = {{26}},
year = {{2018}},
}