Tuned permeability in terahertz split-ring resonators for devices and sensors

ORAL

Abstract

A process is demonstrated for tuning the magnetic resonance frequency of a fixed split-ring resonator array, by way of adding material near the split-ring elements. Applying drops of a silicon-nanospheres/ethanol solution to the surface of the sample decreases the magnetic resonance frequency of the split-ring array in incremental steps of 0.03 THz. This fine tuning is done post fabrication and is demonstrated to be reversible. The exhibited sensitivity of the split-ring resonance frequency to the presence of silicon nanospheres also suggests further application possibilities as a sensor device.

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Authors

  • Greg Andreev

    • University of California at San Diego

  • Tom Driscoll

    • University of California at San Diego
    • University of California San Diego

  • Dimitri Basov

    • Univ. of California, San Diego
    • University of California San Diego
    • Department of Physics, University of California, San Diego
    • University of California, San Diego
    • University of California at San Diego

  • Massimiliano Diventra

    • University of California-San Diego
    • Department of Physics, University of California, San Diego, La Jolla, California 92093-0319, USA
    • University of California at San Diego

  • Sabarni Palit

    • Duke University

  • Sang Yeon Cho

    • Duke University

  • Nan Marie Jokerst

    • Duke University

  • David Smith

    • Duke University