Meta-hologram for three-dimensional display in terahertz waveband
Sign Up to like & getrecommendations! Published in 2020 at "Microelectronic Engineering"
DOI: 10.1016/j.mee.2019.111151
Abstract: Abstract Meta-hologram is a hologram constructed with metasurface which is composed of subwavelength optical antennas. Most of the meta-holograms are phase-only modulated. The phase distributions in these holograms are obtained by phase retrieval algorithm, which… read more here.
Keywords: three dimensional; phase; hologram three; meta hologram ... See more keywords
Reprogrammable meta-hologram for optical encryption
Sign Up to like & getrecommendations! Published in 2020 at "Nature Communications"
DOI: 10.1038/s41467-020-19312-9
Abstract: Meta-holographic encryption is a potentially important technique for information security. Despite rapid progresses in multi-tasked meta-holograms, the number of information channels available in metasurfaces is limited, making meta-holographic encryption vulnerable to some attacking algorithms. Herein,… read more here.
Keywords: information; meta hologram; optical encryption; encryption ... See more keywords
Binary meta-hologram for a reconfigurable holographic metamaterial antenna
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-65458-3
Abstract: This research reports a design method for synthesizing the binary meta-hologram pattern implemented in a leaky waveguide that can radiate the feeding signal toward a prescribed direction. In fact, the obtained pattern is not always… read more here.
Keywords: holographic metamaterial; metamaterial antenna; hologram reconfigurable; meta hologram ... See more keywords
Multiplexing meta-hologram with separate control of amplitude and phase.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.435986
Abstract: Metasurfaces have shown their unique capabilities to manipulate the phase and/or amplitude properties of incident light at the subwavelength scale, which provides an effective approach for constructing amplitude-only, phase-only or even complexed amplitude meta-devices with… read more here.
Keywords: phase; meta hologram; amplitude phase; multiplexing meta ... See more keywords