Nonlinear high-temperature superconducting terahertz metamaterials

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

来源：New Journal of Physics, 2013, 15: 105016.

DOI：10.1088/1367-2630/15/10/105016

We report the observation of a nonlinear terahertz response of splitring 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.

• 出版日期2013-10-18
• 单位Los Alamos; MIT