aqora

Dispersion of light-induced anisotropy of dye solutions under conditions of inhomogeneous broadening of the resonance transition

Leonid I. Burov, Ганчеренок Игорь Иванович

OptSpFeb 1, 19880 citations

Inhomogeneous spectral broadening of rhodamine dye polar solutions

A. V. Adamushko, И. М. Гулис, A. M. Rubinov +2 more

OptSpJan 1, 19790 citations

Beats and inhomogeneous broadening in superradiant fluorescence

Joseph H. Eberly

Lettere al nuovo cimento della societa italiana di fisica/Lettere al nuovo cimentoJan 1, 197124 citations

Effects of Inhomogeneous Broadening on Resonance Fluorescence and the Growth of Laser Instabilities

David A. Holm, Murray Sargent

Springer eBooksJan 1, 19840 citations

Spectral hole-burning in inhomogeneously broadened dye transitions

Gerard A. Mourou

IEEE Journal of Quantum ElectronicsSep 1, 19740 citations

Photon Echo and Single Molecule Fluorescence Measurements of Organic Dyes in Thin Polymer Films

Robin Smith

The extraordinarily short optical dephasing time of organic dye molecules in polymer hosts is known to be under 20 fs between 100 and 200 K. Short dephasing times suggest enormously broadened homogeneous linewidths on the order of 10 nm. Direct observation of single dye molecule fluorescence spectra shows a similarly broadened line, giving comparable dephasing times for room temperature measurements. While this single molecule linewidth agrees with that of the bulk sample, it is inaccurate to attribute this broadening to homogeneous mechanisms. Repeated single molecule fluorescence measurements permit determination of the homogeneous nature of this linewidth, as distinct from the inhomogeneous nature of dispersion in bulk samples. Spectral diffusion in single molecule spectra is evidenced by multiple peaks, visible despite broad spectra lines at room temperature. In the particular experiment discussed in this thesis, fluorescence from single organic dye molecules in thin polymethyl methacrylate films was studied with scanning confocal microscopy. Photon antibunching exhibited by the photon-pair correlation function g(2) (τ) at τ = 0 confirms that single molecule emission spectra were obtained.The extraordinarily short optical dephasing time of organic dye molecules in polymer hosts is known to be under 20 fs between 100 and 200 K. Short dephasing times suggest enormously broadened homogeneous linewidths on the order of 10 nm. Direct observation of single dye molecule fluorescence spectra shows a similarly broadened line, giving comparable dephasing times for room temperature measurements. While this single molecule linewidth agrees with that of the bulk sample, it is inaccurate to attribute this broadening to homogeneous mechanisms. Repeated single molecule fluorescence measurements permit determination of the homogeneous nature of this linewidth, as distinct from the inhomogeneous nature of dispersion in bulk samples. Spectral diffusion in single molecule spectra is evidenced by multiple peaks, visible despite broad spectra lines at room temperature. In the particular experiment discussed in this thesis, fluorescence from single organic dye molecules in thin polymethyl methacrylate films was studied with scanning confocal microscopy. Photon antibunching exhibited by the photon-pair correlation function g(2) (τ) at τ = 0 confirms that single molecule emission spectra were obtained.

Jan 1, 20033 citations

Dynamics of inhomogeneous broadening of fluorescence spectra of dye solutions

Related papers

Dynamics of inhomogeneous broadening of fluorescence spectra of dye solutions

Related papers