Mechanically Reconfigurable Single-Arm Spiral Antenna Array for Generation of Broadband Circularly Polarized Orbital Angular Momentum Vortex Waves
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-23415-1
Abstract: In this paper, a mechanically reconfigurable circular array with single-arm spiral antennas (SASAs) is designed, fabricated, and experimentally demonstrated to generate broadband circularly polarized orbital angular momentum (OAM) vortex waves in radio frequency domain. With… read more here.
Keywords: arm spiral; vortex waves; angular momentum; single arm ... See more keywords
Mechanically reconfigurable multi-functional meta-optics studied at microwave frequencies
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DOI: 10.1038/s41598-021-88785-5
Abstract: Metasurfaces advanced the field of optics by reducing the thickness of optical components and merging multiple functionalities into a single layer device. However, this generally comes with a reduction in performance, especially for multi-functional and… read more here.
Keywords: reconfigurable multi; optics; multi functional; microwave frequencies ... See more keywords
Mechanically reconfigurable van der Waals devices via low-friction gold sliding
Sign Up to like & getrecommendations! Published in 2022 at "Science Advances"
DOI: 10.1126/sciadv.adf9558
Abstract: Interfaces of van der Waals (vdW) materials, such as graphite and hexagonal boron nitride (hBN), exhibit low-friction sliding due to their atomically flat surfaces and weak vdW bonding. We demonstrate that microfabricated gold also slides… read more here.
Keywords: mechanically reconfigurable; van der; friction; der waals ... See more keywords