Optical vortices—light beams carrying orbital angular momentum (OAM)—are characterized by helical wavefronts and phase ...
Researchers from the Monash University School of Physics and Astronomy have flipped a long-held assumption in optics, showing ...
Abstract: In this paper, a low-cost K-band phased array antenna is designed for LEO satellite communication. The design reduces the number of T/R components by allowing multiple elements to share a ...
Abstract: This study establishes a 2D ultrasonic phased array model for bimetallic composite plates, simulating Delamination Defects, horizontal corrosion, and vertical perforation defects using a ...
April 10, 2026 • After swooping around the moon, viewing an eclipse, breaking an Apollo distance record and testing out a space toilet, NASA's Artemis II mission is about to return to Earth. Here's ...