In the past centuries, the scale of engineering optics has evolved toward two opposite
directions: one is represented by giant telescopes with apertures larger than tens of meters …

As one of the major fields of photonics in the last few decades, plasmonics takes advantage
of the coupling of light and free electrons in noble metals, and allows the localization of light …

Plasmonic metasurfaces have attracted tremendous attentions due to the broad applications
in chemical and biomedical sensing, surface enhanced spectroscopy, and near-field …

As two‐dimensional metamaterials, metasurfaces have received rapidly increasing attention
from researchers all over the world. Unlike three‐dimensional metamaterials, metasurfaces …

The past decade has witnessed a great deal of optical systems designed for exceeding the
Abbe's diffraction limit. Unfortunately, a deep subwavelength spot is obtained at the price of …

Optical cavities supporting the optical bound states in the continuum (BICs) with infinite
radiative lifetime have recently been widely reported. Here, we theoretically investigate BICs …

Conventional phase diffraction gratings can be used to localize the incoming optical
radiation in the near‐field region. A new design of the binary phase diffraction grating is …

In this paper, we report the formation of extremely sharp (Quality factor Q~+∞) FR in a single
layer of dielectric nanorods with perturbed periodicity. The interference between the …

We demonstrate theoretically in this work the existence of dual Fano resonances in a silicon
nanodimer, which result from the strong coupling between the magnetic dipole in one …

We propose an all-dielectric nanorod array for ultra-sensitive refractive index sensing based
on quasi-bound states in the continuum (BICs). The nanorod is fabricated by silicon or …