▪ Abstract We review recent developments in single-molecule spectroscopy and microscopy.
New optical methods provide access to the absorption, emission, or excitation spectra of …

A fundamental and long-standing problem in polymer physics is to deduce the relationship
between the topology of a polymer and its dynamics. Generalized Gaussian structures …

Molecular transport in living systems regulates numerous processes underlying biological
function. Although many cellular components exhibit anomalous diffusion, only recently has …

Photochromic reactions of diarylethene derivatives were detected at a single-molecule level
by using a fluorescence technique. Fluorescent photoswitching molecules in which …

Internal conversion (IC) often is the dominating relaxation pathway in NIR emitters, lowering
their fluorescence quantum yield. Here, we investigate dibenzoterrylene (DBT) by bulk and …

Robust fluorescent photoswitching molecules, having perylene bisimide as the fluorescent
unit and diarylethene as the switching unit, were prepared, and their photochromic reactions …

The detection of individual molecules has found widespread application in molecular
biology, photochemistry, polymer chemistry, quantum optics and super-resolution …

The refractive index n is one of the most important materials parameters of solids and, in
recent years, has become the subject of significant interdisciplinary interest, especially in …

Single nano‐objects display strong fluctuations of their fluorescence signals. These random
and irreproducible variations must be subject to statistical analysis to provide microscopic …

Defocused wide-field fluorescence microscopy was used to follow the 3D molecular
rotational diffusion of a fluorescent probe molecule in a polymer thin film. The technique …