Photonic crystals articles from across Nature Portfolio

Valley dispersion engineering enables seamless transition between guided and leaky topological edge states, providing a viable route for the application of topological devices in terahertz communications.

Leveraging the Möbius-like correspondence uncovered in quasi-BICs, we realize compact vectorial lasing with designable topological charges.

The authors observe strong coupling between valley excitons in a monolayer WS2 and intrinsically chiral photons shaped by a metasurface. The polaritons display enhanced chiral emission with their spin configuration controlled by the light source.

Spin-orbit interactions (SOIs) of light are governed by Pancharatnam-Berry (PB) phase and commonly act on cross-polarized components of an electric field. Here, authors show that, in non-Hermitian metasurfaces, encircling an exceptional point can suppress, invert or double the PB phase accumulated with rotations, steering SOIs.

We combine hydrogel photopatterning with nanoparticle growth to form silver-enhanced features that isotropically shrink 1000 × in volume to realize nanoscale 3D structures with tunable optical properties.

The growth of high-quality organic single crystals is essential for probing intrinsic optoelectronic properties and molecular packing. Here, the authors present an additive-directed cocrystallization strategy to grow Y6-additive cocrystals with tunable thickness and controlled morphology.

Valley dispersion engineering enables seamless transition between guided and leaky topological edge states, providing a viable route for the application of topological devices in terahertz communications.

Exciton–polariton superlattices allow sub-picosecond switching of topological phases, paving the way for ultrafast and reconfigurable topological photonic devices.

TPP₃Cu₂Br₂ enables precise underwater temperature sensing with minimal error, leveraging its excellent stability and unique temperature-dependent luminescence lifetime.

A central goal of topological photonics has been to develop compact isolators using protected, non-reciprocal edge states. A recent demonstration of a ferrite-based microwave isolator leverages the magnon-induced topological photonic bandgap to achieve over 100 dB of isolation in a device smaller than a single free-space wavelength.

Photonic crystals enclosed by a circular boundary enable single-mode vortex lasing through momentum-space hybridization of guided resonances — a collective phenomenon distinct from individual resonator physics.