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posted by Fnord666 on Sunday December 30 2018, @01:11PM   Printer-friendly
from the are-they-resonant? dept.

Submitted via IRC for SoyCow1984

Discovery of topological LC circuits transporting EM waves without backscattering

In 2015, this research team successfully demonstrated topological properties in light and microwaves in a honeycomb lattice of dielectric cylinders, such as silicon. This time, the team revealed theoretically in a microstrip, a flat circuit, that electromagnetic waves attain topological properties when the metallic strips form a honeycomb pattern and the intra-hexagon and inter-hexagon strip widths are different. The team also fabricated microstrips and measured electric fields on their surfaces, and successfully observed the detailed structure of topological electromagnetic modes, where vortices of electromagnetic energy polarized in a specific direction are generated during the wave propagation.

This research demonstrates that topological propagation of electromagnetic waves can be induced using conventional materials in a simple structure. Because topological electromagnetic wave propagation is immune to backscatter even when pathways turn sharply, designs of compact electromagnetic circuits become possible, leading to miniaturization and high integration of electronics devices. In addition, the direction of vortex and the vorticity associated with topological electromagnetic modes may be used as data carriers in high-density information communications. All these features may contribute to the development of advanced information society represented by IoT and autonomous vehicles.


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  • (Score: 5, Interesting) by Anonymous Coward on Sunday December 30 2018, @04:21PM (2 children)

    by Anonymous Coward on Sunday December 30 2018, @04:21PM (#779976)

    Maybe we can finally go back to having some privacy if people decide to start 'popping' every camera they see nearby. It's about the only method left to keep real privacy alive in most of the first world.

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  • (Score: 0) by Anonymous Coward on Sunday December 30 2018, @09:18PM (1 child)

    by Anonymous Coward on Sunday December 30 2018, @09:18PM (#780065)

    i see what you did there ...

    • (Score: 1, Funny) by Anonymous Coward on Monday December 31 2018, @01:25PM

      by Anonymous Coward on Monday December 31 2018, @01:25PM (#780244)

      Nope you wont