The scientific effort to control the interaction between light and matter has grown
exponentially in the last 2 decades. This growth has been aided by the development of …

Unlike traditional optical components, which rely on the gradual accumulation of light along
the optical path over a distance much larger than the wavelength to form a wavefront …

Metasurfaces have opened the door to next-generation optical devices due to their ability to
dramatically modulate electromagnetic waves at will using periodically arranged …

All‐dielectric metasurfaces provide unique solutions for advanced wavefront manipulation of
light with complete control of amplitude and phase at sub‐wavelength scales. One limitation …

Next‐generation holographic displays have promising applications in medical science,
augmented/virtual reality, smart security, data encryption, etc. Although metasurfaces …

Compact varifocal lenses are essential to various imaging and vision technologies.
However, existing varifocal elements typically rely on mechanically actuated systems with …

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

Nonlocal effects on metasurfaces play an important role to achieve high-Q spectral
selectivity, beneficial for development of multifunctional, multispectral integrated optics. In …

Free-standing nanofins or pillar meta-atoms are the most common constituent building
blocks in metalenses and metasurfaces in general. Here, we present an alternative …

We present a dynamically switchable broadband dual-mode polarization conversion
metasurface in the terahertz (THz) regime, which consists of double-layer graphene grating …