The reversible phase transition in vanadium dioxide (VO 2) with light, heat, electric,
magnetic, and mechanical stimuli is the enabling concept to function as a smart material. It is …

Metalens, a two-dimensional planar system composed of strategically engineered
subwavelength structures, facilitates precise manipulation in the process of both light and …

Photonic devices rarely provide both elaborate spatial control and sharp spectral control
over an incoming wavefront. In optical metasurfaces, for example, the localized modes of …

Tunable metasurfaces can change the optical properties of incident light at will such as
amplitude, phase, and polarization in a time-dependent fashion. Ultrafast switching speed …

Dynamic metasurfaces provide exciting opportunities for spatial light modulation with ultra‐
compact footprint and high resolution. Designs reported so far typically suffer from efficiency …

Active metasurfaces, which are arrays of actively tunable resonant elements, can
dynamically control the wavefront of the scattered light at a subwavelength scale. To date …

Planar all-dielectric photonic crystals or metasurfaces host various resonant eigenmodes
including leaky guided mode resonances (GMR) and bound states in the continuum (BIC) …

We propose a stretchable metalens on polydimethylsiloxane (PDMS) substrate. By
stretching the stretchable metalens device along x-and y-axis directions, it exhibits highly …

Metasurfaces can be opportunely and specifically designed to manipulate electromagnetic
wavefronts. In recent years, a large variety of metasurface-based optical devices such as …

The frequency mixing property of time-modulated metasurfaces, attributed to the well-known
phenomenon of temporal photonic transition, has led to several exotic functionalities in the …