Nonlinear high-temperature superconducting terahertz metamaterials

Nathaniel K. Grady, Bradford G. Perkins, Harold Y. Hwang, Nathaniel C. Brandt, Darius Torchinsky, Ranjan Singh, Li Yan, Daniel Trugman, Stuart A. Trugman, Q. X. Jia, Antoinette J. Taylor, Keith A. Nelson, Hou Tong Chen

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Abstract

We report the observation of a nonlinear terahertz response of split-ring resonator arrays made of high-temperature superconducting films. Intensity-dependent transmission measurements indicate that the resonance strength decreases dramatically (i.e. transient bleaching) and the resonance frequency shifts as the intensity is increased. Pump-probe measurements confirm this behaviour and reveal dynamics on the few-picosecond timescale.

Original languageEnglish (US)
Article number105016
JournalNew Journal of Physics
Volume15
DOIs
StatePublished - Oct 2013

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    Grady, N. K., Perkins, B. G., Hwang, H. Y., Brandt, N. C., Torchinsky, D., Singh, R., Yan, L., Trugman, D., Trugman, S. A., Jia, Q. X., Taylor, A. J., Nelson, K. A., & Chen, H. T. (2013). Nonlinear high-temperature superconducting terahertz metamaterials. New Journal of Physics, 15, [105016]. https://doi.org/10.1088/1367-2630/15/10/105016