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 language | English (US) |
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Article number | 105016 |
Journal | New Journal of Physics |
Volume | 15 |
DOIs | |
State | Published - Oct 2013 |