Terahertz superconducting plasmonic hole array

Details Terahertz superconducting plasmonic hole array Terahertz superconducting plasmonic hole array

2010-04-15

arxiv.org/abs/1004.2556v2

Physics

Optics

3 figures

Scientific paper

We demonstrate thermally tunable superconductor hole array with active control over their resonant transmission induced by surface plasmon polaritons . The array was lithographically fabricated on high temperature YBCO superconductor and characterized by terahertz-time domain spectroscopy. We observe a clear transition from the virtual excitation of the surface plasmon mode to the real surface plasmon mode. The highly tunable superconducting plasmonic hole arrays may have promising applications in the design of low-loss, large dynamic range amplitude modulation, and surface plasmon based terahertz devices.

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