All-dielectric metamaterials and metasurfaces have been demonstrated as ideal platforms to
manipulate electromagnetic waves and enhance light–matter interaction. Analogous to …

The scattering of electromagnetic waves lies at the heart of most experimental techniques
over nearly the entire electromagnetic spectrum, ranging from radio waves to optics and x …

Metasurfaces are ushering in an era of multifunctional control over optical wavefronts
realized with ultrathin planarized devices. Recent advances have been enabling …

Unidirectional radiation is important for various optoelectronic applications, such as lasers,
grating couplers and optical antennas. However, almost all existing unidirectional emitters …

Non-reciprocal devices such as isolators and circulators are key enabling technologies for
communication systems, both at microwave and optical frequencies. Although non …

Miniaturized spectrometers have significant potential for portable applications such as
consumer electronics, health care, and manufacturing. These applications demand low cost …

Spatial differentiation is important in image-processing applications such as image
sharpening and edge-based segmentation. In these applications, of particular importance is …

In contrast to a conventional symmetric Lorentzian resonance, Fano resonance is
predominantly used to describe asymmetric-shaped resonances, which arise from the …

It has been recently demonstrated that optical pulses can hold transverse orbital angular
momentum (OAM). Generation of such vortices typically requires bulky optics, and only …

Non-reciprocal devices—in which light is transmitted with different efficiencies along
opposite directions—are key technologies for modern photonic applications, yet their …