Temperature Control Of Fano Resonances And Transmission In Superconducting Metamaterials.pdf

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Preview of Temperature Control of Fano Resonances and Transmission in Superconducting Metamaterials
🔗 Source: nanophotonics.org.uk
📊 Size: 907 KB
📄 Pages: 5 pages
⬇️ Downloads: 23

Summary

The article discusses the temperature control of Fano resonances and transmission in superconducting metamaterials. Researchers demonstrated a unique ability to manipulate transmission in high-Tc cuprate metamaterials, supporting sub-radiant Fano-type resonances, over a wide millimeter-wave frequency range.

Key Points:

- Fano Resonances: These sharp dispersion features are ideal for various applications like slow light, sensors, nonlinearity, and switching due to their asymmetric line profiles.
- Challenges: In conventional metamaterials, Joule losses limit the quality factor of Fano resonances. Controlling these losses is crucial for achieving sharper responses.
- Solutions: Current approaches involve using optically pumped gain media (quantum dots, wells) or reducing metal resistivity through cooling to cryogenic temperatures.
- Superconducting Metamaterials: The study focuses on superconductors as a way to eliminate Joule losses entirely and provide precise temperature control over dissipation. Cuprate superconductors exhibit lower surface resistivity than copper at frequencies below 200 GHz even at liquid nitrogen temperatures.

Description

Superconducting metamaterials offer unique temperature-controlled Joule loss management, enabling enhanced performance and practical application potential by mitigating radiation losses. This study explores the temperature dependence of Fano resonances and transmission in such materials.

Technical Information

  • File Format: PDF
  • File Size: 907 KB
  • Pages: 5
  • Language: EN
  • Total Downloads: 23
  • Last Updated: 2 weeks ago

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