David L. Andrews

TL;DR: In this article, the fundamental processes through which donor-acceptor pairs can participate in two-photon absorption are explored and characterised, and three distinct classes of mechanisms can operate: resonance energy transfer, anti-Stokes electronic Raman-induced transfer, and transfer-induced doublequantum excitation.

TL;DR: Details of the dependence on the beam polarisations and on the rotationally averaged molecular response are revealed, illustrating the breadth of variation available via geometric manipulation of beam polarization, and raising new possibilities for quantum weak measurements of laser states.

TL;DR: In this article, the Laguerre-Gaussian modes are used to generate optical vortex fields with orbital angular momentum, which can be used to securely transfer information on any other multipolar basis.

TL;DR: In this article, the authors present the history frontiers of vibrational spectroscopic contributions to chemisorption and catalysis, and present the new possibilities of luminescence spectroscopy of microscopic matter characterization of single hydrocarbon fluid inclusions by fluorescence excitation-emission micro-spectroscopy spectromopic imaging of polyethylene ozone measurements with starpointing spectrometers.

TL;DR: The resonance energy transfer (FRET) mechanism is the primary mechanism for the migration of electronic excitation in the condensed phase as discussed by the authors, which is a phenomenon whose much wider prevalence in both natural and synthetic materials has only slowly been appreciated, and for which fundamental theory and understanding have witnessed major advances in recent years.