Base station transmitter beamforming and beamsteering are effective methods of increasing base station coverage and capacity. These techniques require multiple transceivers and the baseband processor ...

In topological insulators, global geometric phases of energy bands determine the existence of unidirectionally propagating edge states, which are immune to local defects, bringing a new stage for ...

“Optical interferometry plays an essential role in precision metrology such as in gravitational wave detection, gyroscopes, and environmental sensing. Weak value amplification enables reaching the ...

Why You Can’t Just Use a Spectrum Analyzer Industry has an increasing demand for spectrally pure signals in applications such as imaging radar, mobile communications, satellite communications, weather ...

(a) and (b) Optical microscope images depicting the sample with defects and the defect-free sample. (c) and (d) Experimentally measured optical field distributions for the sample with defects and the ...

Metalens is a kind of optical metasurface composed of metaatoms for manipulating incoming light's amplitude, phase, and polarization. Unlike traditional refractive lenses, metalens can modulate the ...