Thomas A. Klar

TL;DR: The diffraction barrier responsible for a finite focal spot size and limited resolution in far-field fluorescence microscopy has been fundamentally broken by quenching excited organic molecules at the rim of the focal spot through stimulated emission.

TL;DR: The radiative and nonradiative decay rates of lissamine dye molecules, chemically attached to differently sized gold nanoparticles, are investigated by means of time-resolved fluorescence experiments and theoretical results derived from the Gersten-Nitzan model are compared.

TL;DR: This Review highlights morphology-dependent properties of nonspherical noble metal nanoparticles with a focus on localized surface plasmon resonance and local field enhancement, as well as their applications in various fields including Raman spectroscopy, fluorescence enhancement, analytics and sensing, photothermal therapy, (bio-)diagnostics, and imaging.

TL;DR: The resolution limit of scanning far-field fluorescence microscopy is overcame by disabling the fluorescence from the outer part of the focal spot by a spatially offset pulse.

TL;DR: In this paper, the authors measured the homogeneous line shape of the surface-plasmon resonance in single gold nanoparticles and observed double-peaked line shapes caused by electromagnetic coupling between close-lying particles.