Measuring the ultrafast correlation dynamics between the Q x and Q y bands in chlorophyll molecules
We use two-dimensional electronic spectroscopy to measure the ultrafast correlation dynamics between the Q x and Q y transitions in chlorophyll molecules. We derive a variation to the center line slope method to quantify the frequency fluctuation cross-correlation function, C xy( Tw). Compared with...
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sg-ntu-dr.10356-1449612023-02-28T19:52:18Z Measuring the ultrafast correlation dynamics between the Q x and Q y bands in chlorophyll molecules Khyasudeen, M. Faisal Nowakowski, Paweł J. Tan, Howe-Siang School of Physical and Mathematical Sciences Science::Chemistry Alcohols Pyridines We use two-dimensional electronic spectroscopy to measure the ultrafast correlation dynamics between the Q x and Q y transitions in chlorophyll molecules. We derive a variation to the center line slope method to quantify the frequency fluctuation cross-correlation function, C xy( Tw). Compared with the frequency fluctuation correlation function of the Q y transition, we observe that there is only a minimal correlation between the Q x and Q y transition, even at the ultrashort timescale of ∼100 fs, which then decays to zero in a time scale of ∼2 ps. Ministry of Education (MOE) Accepted version This work is supported by grants from the Singapore Ministryof Education Academic Research Fund (Tier 2 MOE2015-T2-1-039 and Tier 1 RG16/15). M.F.K. acknowledges funding from the Ministry of Education Malaysia and the SLAB/SLAI fellowship scheme from the University of Malaya. Fruitful discussions with Maxim Gelin and Yuan-Chung Cheng are acknowledged 2020-12-07T02:47:49Z 2020-12-07T02:47:49Z 2019 Journal Article Khyasudeen, M. F., Nowakowski, P. J., & Tan, H.-S. (2019). Measuring the Ultrafast Correlation Dynamics between the Qx and Qy Bands in Chlorophyll Molecules. The Journal of Physical Chemistry B, 123(6), 1359–1364. doi:10.1021/acs.jpcb.9b00099 1520-6106 https://hdl.handle.net/10356/144961 10.1021/acs.jpcb.9b00099 30657672 6 123 1359 1364 en The journal of physical chemistry B This document is the Accepted Manuscript version of a Published Work that appeared in final form in The journal of physical chemistry B, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jpcb.9b00099 application/pdf |
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Science::Chemistry Alcohols Pyridines Khyasudeen, M. Faisal Nowakowski, Paweł J. Tan, Howe-Siang Measuring the ultrafast correlation dynamics between the Q x and Q y bands in chlorophyll molecules |
| description |
We use two-dimensional electronic spectroscopy to measure the ultrafast correlation dynamics between the Q x and Q y transitions in chlorophyll molecules. We derive a variation to the center line slope method to quantify the frequency fluctuation cross-correlation function, C xy( Tw). Compared with the frequency fluctuation correlation function of the Q y transition, we observe that there is only a minimal correlation between the Q x and Q y transition, even at the ultrashort timescale of ∼100 fs, which then decays to zero in a time scale of ∼2 ps. |
| author2 |
School of Physical and Mathematical Sciences |
| author_facet |
School of Physical and Mathematical Sciences Khyasudeen, M. Faisal Nowakowski, Paweł J. Tan, Howe-Siang |
| format |
Article |
| author |
Khyasudeen, M. Faisal Nowakowski, Paweł J. Tan, Howe-Siang |
| author_sort |
Khyasudeen, M. Faisal |
| title |
Measuring the ultrafast correlation dynamics between the Q x and Q y bands in chlorophyll molecules |
| title_short |
Measuring the ultrafast correlation dynamics between the Q x and Q y bands in chlorophyll molecules |
| title_full |
Measuring the ultrafast correlation dynamics between the Q x and Q y bands in chlorophyll molecules |
| title_fullStr |
Measuring the ultrafast correlation dynamics between the Q x and Q y bands in chlorophyll molecules |
| title_full_unstemmed |
Measuring the ultrafast correlation dynamics between the Q x and Q y bands in chlorophyll molecules |
| title_sort |
measuring the ultrafast correlation dynamics between the q x and q y bands in chlorophyll molecules |
| publishDate |
2020 |
| url |
https://hdl.handle.net/10356/144961 |
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1759853343605260288 |