As a key structural parameter, phase depicts the arrangement of atoms in materials.
Normally, a nanomaterial exists in its thermodynamically stable crystal phase. With the …

In this Perspective, we discuss the different opportunities offered by time-modulated
metasurfaces for dynamic wavefront engineering and space-time photonics. Efforts in …

Two biomimetic, moth-eye structure, perfect absorbers in the visible and near infrared
regions are introduced and investigated. The moth-eye structure is made up of vanadium …

Merging the properties of VO2 and van der Waals (vdW) materials has given rise to novel
tunable photonic devices. Despite recent studies on the effect of the phase change of VO2 …

Phase-transition materials provide exciting opportunities for controlling optical properties of
photonic devices dynamically. Here, we systematically investigate the infrared emission from …

Electromagnetic absorbers based on ultra-thin metallic film are desirable for many
applications such as plasmonics, metamaterials, and long-wavelength detectors. A metallic …

Reconfigurable light absorbers have attracted much attention by providing additional optical
responses and expanding the number of degrees of freedom in security applications. Fabry …

Here, a metasurface absorber with switchable spectral response is proposed and discussed.
The device is constructed by combining a phase change material (vanadium dioxide, VO 2) …

Bi-tunable asymmetric light transmission (AT) and nearly perfect resonant absorption
functionalities are achieved by a Lorentz-reciprocal metamaterial for the operation at the mid …

In this paper, a thermally tunable metasurface (TTMS) based on phase material vanadium
dioxide (VO 2) is designed and demonstrated, which consists of VO 2 patterns, metallic …