Two-photon absorption and excitation spectroscopy of carotenoids, chlorophylls and pigment–protein complexes

Daniel A. Gacek; Alexander Betke; Julia Nowak; Heiko Lokstein; Peter Jomo Walla

doi:10.1039/d1cp00656h

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Two-photon absorption and excitation spectroscopy of carotenoids, chlorophylls and pigment–protein complexes

Daniel A. Gacek Alexander Betke Julia Nowak Heiko Lokstein Peter Jomo Walla

Year: 2021 Journal: Physical Chemistry Chemical Physics Vol: 23 (14)Pages: 8731-8738 Publisher: Royal Society of Chemistry

DOI: 10.1039/d1cp00656h

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Abstract

Comparing carotenoid and chlorophyll two-photon spectra with that of light harvesting complexes shows the latter consist of both. Depending on the two-photon excitation (TPE) wavelength, mainly carotenoid dark states or chlorophylls can be excited.

Keywords:

Carotenoid Photochemistry Excitation Chlorophyll Pigment Spectroscopy Excited state Absorption (acoustics) Chemistry Chlorophyll a Absorption spectroscopy Wavelength Two-photon excitation microscopy Photon Atomic physics Materials science Optoelectronics Optics Physics Biochemistry Organic chemistry

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Photosynthetic Processes and Mechanisms

Life Sciences → Biochemistry, Genetics and Molecular Biology → Molecular Biology

Antioxidant Activity and Oxidative Stress

Health Sciences → Medicine → Biochemistry

Spectroscopy and Quantum Chemical Studies

Physical Sciences → Physics and Astronomy → Atomic and Molecular Physics, and Optics

Two-photon absorption and excitation spectroscopy of carotenoids, chlorophylls and pigment–protein complexes

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