Metasurfaces have attracted great attention due to their ability to manipulate the phase,
amplitude, and polarization of light in a compact form. Tunable metasurfaces have been …

Optically variable devices (OVDs) are in tremendous demand as optical indicators against
the increasing threat of counterfeiting. Conventional OVDs are exposed to the danger of …

A lightweight and portable spectrometer is desirable for miniaturization and integration. The
unprecedented capability of optical metasurfaces has shown much promise to perform such …

Vectorial holography has gained a lot of attention due to the promise of versatile polarization
control of structured light for enhanced optical security and multi-channel optical …

The remarkable potential of metasurface holography promises revolutionary advancements
for imaging, chip-integrated augmented/virtual reality (AR/VR) technology, and flat optical …

The rapid detection of biological and chemical substances in real time is particularly
important for public health and environmental monitoring and in the military sector. If the …

Symmetric spin–orbit interaction (SOI)‐based approaches apply a practical limit on helicity
multiplexed metaoptics, ie, center symmetric information encoding. Contrarily, asymmetric …

Multi‐functional metasurfaces have attracted great attention due to the significant
possibilities to realize highly integrated and ultra‐compact meta‐devices. Merging nano …

The efficiency of traditional solar cells is constrained due to the Shockley–Queisser limit, to
circumvent this theoretical limit, the concept of solar thermophotovoltaics (STPVs) has been …

Tunable optical devices powered by metasurfaces provide a new path for functional planar
optics. In particular, lenses with tunable focal lengths can play a key role in various fields …