Nonlinear high-temperature superconducting terahertz metamaterials

被引：32
|
作者：
Grady, Nathaniel K. [1 ]
Perkins, Bradford G., Jr. [2 ]
Hwang, Harold Y. [2 ]
Brandt, Nathaniel C. [2 ]
Torchinsky, Darius [2 ]
Singh, Ranjan [1 ]
Yan, Li [1 ]
Trugman, Daniel [1 ]
Trugman, Stuart A. [1 ]
Jia, Q. X. [1 ]
Taylor, Antoinette J. [1 ]
Nelson, Keith A. [2 ]
Chen, Hou-Tong [1 ]
机构：
[1] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA
[2] MIT, Dept Chem, Cambridge, MA 02139 USA
来源：
NEW JOURNAL OF PHYSICS | 2013年 / 15卷
基金：
美国国家科学基金会;
关键词：
NEGATIVE INDEX; PAIR-BREAKING; TRANSITION; INTERMODULATION;
D O I：
10.1088/1367-2630/15/10/105016
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
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页数：12
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