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13 March 2024 Probing photosynthesis with single photons
Birgitta Whaley
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Proceedings Volume PC12863, Quantum Effects and Measurement Techniques in Biology and Biophotonics; PC128630G (2024) https://doi.org/10.1117/12.3004396
Event: SPIE BiOS, 2024, San Francisco, California, United States
Abstract
Photosynthetic light harvesting in vivo displays near unit quantum efficiency under ultra-weak illumination conditions. A new generation of experimental and theoretical studies using quantum light sources and coincidence counting now allows explicit study of the absorption of individual photons. First generation experiments reveal a cycle of single photon absorption and single photon fluorescent emission that validates the microscopic interpretation of conventional bulk measurements of quantum efficiency. I shall discuss how these techniques and related theoretical studies can probe the spatiotemporal dynamics of photosynthesis in a new and fundamental manner.
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Birgitta Whaley "Probing photosynthesis with single photons", Proc. SPIE PC12863, Quantum Effects and Measurement Techniques in Biology and Biophotonics, PC128630G (13 March 2024); https://doi.org/10.1117/12.3004396
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KEYWORDS
Photons
Photosynthesis
Light absorption
Quantum efficiency
Quantum optics experiments
Light harvesting
Light sources and illumination
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