Abrupt lateral beam shifts from terahertz quasi-bound states in the continuum
Peer-Reviewed Publication
Updates every hour. Last Updated: 7-May-2025 19:09 ET (7-May-2025 23:09 GMT/UTC)
In a paper published in Science Bulletin, an international team of physicists from Singapore and China demonstrates how quasi-bound states in the continuum (QBICs) can induce abrupt lateral beam shifts in the terahertz regime. By applying Brillouin zone folding to a compound grating waveguide, the researchers created a QBIC band that enables sudden and significant beam shifts, offering new insights into real-space QBIC properties and potential applications in sensing and wavelength multiplexing.
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