Morning Overview on MSN

Megawatt light array generates 3,070 phase-coherent optical vortices

In a lab at Osaka University, physicist Yoshiki Nakata and his colleagues fired a pulsed laser through a stack of three ...

Megawatt structured light arrives with 3,070 optical vortices in one array

Optical vortices—light beams carrying orbital angular momentum (OAM)—are characterized by helical wavefronts and phase ...
IEEE

Metasurface-Loaded ±45° Dual-polarized Phased Array Antenna for Millimeter-Wave Cellphone Communication Applications

Abstract: This letter presents a dual-layer cross metasurface (DLCM)-loaded ±45° dual-polarized phased-array antenna (DPPAA) for millimeter-wave (mm-Wave) cellphone communication applications. A ...
IEEE

A Highly Integrated Programmable Millimeter-Wave Antenna Array with 2D Controllable Beamwidth Based on Polarization-Mixing Analog Beamforming

Abstract: This paper presents a highly integrated and power-efficient millimeter-wave (mm-wave) antenna array system that enables two-dimensional (2D) controllable beamwidth using a novel polarization ...

Electron–atom scattering encodes the quantum state of electron wave packets

A new analysis reveals what happens when very short or narrow electron beams encounter a particle. The research is published ...