Rotatable Terahertz Vortex Field Based on Magneto‐Optical Metasurface
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DOI: 10.1002/adom.202500088
Abstract: Terahertz vortex fields hold immense potential for wideband, high‐capacity wireless communication. However, existing functional devices face challenges such as the lack of multi‐channel multiplexing and active control capabilities. Here, a magneto‐optical dielectric spiral metasurface that… read more here.
Keywords: field; magneto optical; rotation; terahertz vortex ... See more keywords
Terahertz vortex beam generator based on bound states in the continuum.
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DOI: 10.1364/oe.431814
Abstract: Vortex beams are playing an increasingly crucial role in wireless optical communications. Traditional vortex beam generators based on spiral phase plates and metasurfaces have a geometric center in real space, which limit their convenience in… read more here.
Keywords: vortex beams; beam generator; vortex beam; terahertz vortex ... See more keywords
Simultaneous/same-frequency/bidirectional terahertz vortex beam and beam-splitting generator.
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DOI: 10.1364/oe.571491
Abstract: We proposed what we believe to be a novel simultaneous bidirectional terahertz vortex beam generator and beam splitter at the same frequency without changing external conditions. This metasurface consists of a five-layer structure, including a… read more here.
Keywords: layer; beam; vortex beam; bidirectional terahertz ... See more keywords