期刊
JOURNAL OF APPLIED PHYSICS
卷 116, 期 17, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4901062
关键词
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资金
- AcRF Tier 2-MOE at National University of Singapore [2012-T2-2-154 (R-263-000-A59-112)]
- National Research Foundation (NRF) CRP Project Self-Powered Body Sensor Network for Disease Management and Prevention Oriented Healthcare [R-263-000-A27-281]
This work examines the coupling effect in concentric double split-ring-resonator devices in terahertz (THz) range when the inner ring changes its relative orientation to the outer ring. Through detailed analysis on the simulation results of surface current and electrical field distributions, we look into the changes of inductance and capacitance in the system caused by structural layouts, and present a set of coherent theory that is solely rooted in the inductance-capacitance circuit analogy to systematically account for the resonance change. Such coupling effect combined with polarization of the incident wave is further explored to demonstrate continuous modulation of THz resonances. A variation range of transmission intensity from 20% to 80% has been successfully achieved. These experimental results demonstrate the promise of realizing future tunable THz filters by means of rotating sub-structures of the device only. (C) 2014 AIP Publishing LLC.
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