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Ultrafast coherent spectroscopic investigation on photosynthetic pigment chlorophyll a utilizing 20 fs pulses

Paper ID Volume ID Publish Year Pages File Format Full-Text
26467 43954 2015 7 PDF Available
Title
Ultrafast coherent spectroscopic investigation on photosynthetic pigment chlorophyll a utilizing 20 fs pulses
Abstract

•Chlorophyll a is an essential pigment for oxygenic photosynthesis.•Four-wave mixing spectroscopies using 20 fs pulses were applied to chlorophyll a.•Real-time wave-packet motions of twelve vibrational modes were observed.

Vibrational dynamics of the photosynthetic pigment chlorophyll a in solution have been investigated by degenerated three-pulse four-wave mixing spectroscopies (transient grating and photon echo) using 20 fs pulses. Real-time wave-packet motions of intramolecular vibrations were clearly observed in four-wave mixing signals. Twelve vibrational modes due to chlorophyll a in the region of energy ranging from 200 to 1400 cm−1 were found in the Fourier transform power spectra of coherent oscillations. We demonstrate that a specific light–matter interaction can be enhanced by a control of the temporal separation between the first and second pulses.

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Keywords
Photosynthesis; Chlorophyll; Ultrafast spectroscopy; Molecular vibration
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Ultrafast coherent spectroscopic investigation on photosynthetic pigment chlorophyll a utilizing 20 fs pulses
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 313, 1 December 2015, Pages 72–78
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us