Photonic crystals have proven their potential and are nowadays a familiar concept. They
have been approached from many scientific and technological flanks. Among the many …

The unique ability of slot and sub-wavelength grating (SWG) waveguides to confine light
outside of the waveguide core material has attracted significant interest in their application to …

Frontier quantum engineering tasks require reliable control over light-matter interaction
dynamics, which could be obtained by introducing electromagnetic structuring. Initiated by …

We present a general theory of spontaneous emission at exceptional points (EPs)—exotic
degeneracies in non-Hermitian systems. Our theory extends beyond spontaneous emission …

We formulate the photonic band structure calculation of any lossless dispersive photonic
crystal and optical metamaterial as a Hermitian eigenvalue problem. We further show that …

Recent progress in near-field optics instrumentation has led to a new class of
subwavelength optical experiments in which near-field optical microscopes are used to …

Photonics can be confined in real space with dispersion vanishing in the momentum space
due to destructive interference. In this Letter, we report the experimental realization of flat …

The production of high-quality low-defect single-domain flexible polymer opals which
possess fundamental photonic bandgaps tuneable across the visible and near-infrared …

The nature of light interaction with matter can be dramatically altered in optical cavities, often
inducing nonclassical behavior. In solid-state systems, excitons need to be spatially …

We present measurements of transmission and reflection spectra of a microwave photonic
crystal composed of 874 metallic cylinders arranged in a triangular lattice. The spectra show …