Peter Palffy-Muhoray

TL;DR: It is demonstrated here that by dissolving—rather than covalently bonding—azo dyes into an LCE sample, its mechanical deformation in response to non-uniform illumination by visible light becomes very large and is more than two orders of magnitude faster than previously reported.

TL;DR: In this paper, it was shown that at low pump intensities, the fluorescence spectrum of the dye is modified, showing suppression of emission in the reflection band, and enhanced emission near the band edge.

TL;DR: The first observations of lasing in three-dimensional photonic crystals, in the cholesteric blue phase II are reported, showing that distributed feedback is realized in three dimensions, resulting in almost diffraction-limited lasing with significantly lower thresholds than in one dimension.

TL;DR: The first example of a quasicrystal formed from hard or non-spherical particles, which can be compressed to a packing fraction of φ = 0.8324, is reported, demonstrating that particle shape and entropy can produce highly complex, ordered structures.

TL;DR: In this article, the authors show that hard tetrahedra can pack even more densely than spheres, and in a completely unexpected way, by using thermodynamic computer simulations that allow the system to evolve naturally towards high-density states, they observe that a fluid of hard, convex shapes undergoes a firstorder phase transition to a dodecagonal quasicrystal, which can be compressed to a packing fraction of φ = 0.8324.