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Reabsorption losses in luminescent solar concentrators can be avoided by the use of indirect-bandgap semiconductor nanostructures. The technology has been used to demonstrate flexible luminescent solar concentrators with performance comparable to flat concentrators.
A solution-processed organic phototransistor is operated at 100-frame-per-second rates with external quantum efficiencies above 100%. Dynamic range as high as 103 dB was shown for 30-frame-per-second operation.
Stimulated emission double depletion addresses the issue of background in super-resolution imaging and quantitative microscopy through implementation of a two-pulse sequence in a modified stimulated emission depletion set-up. The measured background intensity is removed from each voxel in the acquired images thanks to time-resolved detection.
Constructive interference is observed in the inelastically backscattered Raman radiation from nanostructured media. The effect is studied at a macroscopic scale and is explained in the context of Rayleigh–Raman random walks inside strongly scattering materials.
A passively mode-locked laser system featuring cavity filtering and cavity-enhanced nonlinear interactions within an integrated microring resonator produces nanosecond optical pulses with a spectral width of 104.9 MHz.
Localized polarization knots formed in conventional optical fibres are shown to be able to act as topological bits of information for optical data communication.
Previous demonstrations of the elusive Casimir force between interfaces exhibit monotonic dependence on surface displacement. Now a non-monotonic dependence of the force has been shown experimentally by exploting nanostructured surfaces.