Polarized pump--probe spectroscopy of electronic excitation transport in photosynthetic antennas

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Journal of the Optical Society of America, Part B: Optical Physics; (USA)

DOI:https://doi.org/10.1364/JOSAB.7.001586· OSTI ID:6375416

Struve, W S ^[1]

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1. Department of Chemistry, Iowa State University, Ames, IA (USA)

Polarized pump--probe spectroscopy was performed with 1.5--2 psec resolution on the bacteriochlorophyll a protein antenna complex from the green sulfur bacterium Prosthecochloris aestuarii and on native and enriched photosystem I particles from spinach. The resulting photobleaching profiles reflect the details of singlet electronic-excitation transport in these photosynthetic antennas, in which the pigments are complexed by proteins into clusters of five or more chromophores.

• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6375416
• Journal Information: Journal of the Optical Society of America, Part B: Optical Physics; (USA), Journal Name: Journal of the Optical Society of America, Part B: Optical Physics; (USA) Vol. 7:8; ISSN JOBPD; ISSN 0740-3224
• Country of Publication: United States
• Language: English

Related Subjects

440600* -- Optical Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CHLOROPHYLL
EMISSION SPECTROSCOPY
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUORESCENCE SPECTROSCOPY
FOOD
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
LASER SPECTROSCOPY
MAGNOLIOPHYTA
MAGNOLIOPSIDA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PHOTOSYNTHETIC BACTERIA
PHYTOCHROMES
PIGMENTS
PLANTS
POLARIZATION
PORPHYRINS
PROBES
PROTEINS
PULSES
PUMPING
SPECTROSCOPY
SPINACH
SYNTHESIS
TRANSIENTS
VEGETABLES