Search results for "Single-molecule spectroscopy"

showing 2 items of 2 documents

Generalized bloch equations for optical interactions in confined geometries

2005

By combining the field-susceptibility technique with the optical Bloch equations, a general formalism is developed for the investigation of molecular photophysical phenomena triggered by nanometer scale optical fields in the presence of complex environments. This formalism illustrate the influence of the illumination regime on the fluorescence signal emitted by a single molecule in a complex environment. In the saturated case, this signal is proportional to the optical local density of states, while it is proportional to the near-field intensity in the non-saturated case. (C) 2005 Elsevier B.V. All rights reserved.

PhysicsMicroscopyLocal density of statesGeneral Physics and AstronomySingle-Molecule SpectroscopyFluorescenceScaleFormalism (philosophy of mathematics)Bloch equationsQuantum mechanicsNear-FieldLight-SourceMoleculeDielectricsMaxwell-Bloch equationsPhysical and Theoretical ChemistryChemical Physics Letters
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Watching the photo-oxidation of a single aromatic hydrocarbon molecule

2001

International audience; The photooxidation of single dye molecules (see scheme) can be followed by confocal fluorescence microscopy. The self-sensitized reaction with singlet oxygen leads to a suite of products, which may be differentiated spectrally. Tentative structures for certain photoproducts have been obtained from quantum-chemical calculations.

chemistry.chemical_classificationSingle-molecule spectroscopyphotochemistryChemistrySinglet oxygenConfocalGeneral ChemistryPhotochemistryCatalysisFluorescence spectroscopySingle Molecule Spectroscopychemistry.chemical_compoundbiological sciencesFluorescence microscopeMolecule[CHIM]Chemical SciencesPhysics::Chemical PhysicsAromatic hydrocarbonFluorescence spectroscopy
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