›› 2014, Vol. 23 ›› Issue (10): 107808-107808.doi: 10.1088/1674-1056/23/10/107808
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
万明理a, 袁书卿a, 代克杰b, 宋月丽a, 周丰群a, 何金娜a
Wan Ming-Li (万明理)a, Yuan Shu-Qing (袁书卿)a, Dai Ke-Jie (代克杰)b, Song Yue-Li (宋月丽)a, Zhou Feng-Qun (周丰群)a, He Jin-Na (何金娜)a
摘要: In this paper, based on the constructive interference of plasmonic dipolar and quadrupolar modes, a classical analogue of electromagnetically induced absorption (EIA) is demonstrated theoretically in a stacked metamaterial consisting of a short metal strip (which acts as a bright resonator) and a long metal strip (acting as a dark resonator), which has been reported to support the electromagnetically induced transparency (EIT) effect. The transition from EIA to EIT can be clearly observed in the absorbance spectra via varying the vertical spacing between two resonant oscillators. With the help of the coupled two-oscillator model, the phase shift between the bright and dark resonance modes is calculated by fitting the simulated absorbance spectra, which reveals the physical mechanisms behind constructive and destructive interference effects in EIT/EIA metamaterials.
中图分类号: (Multilayers; superlattices; photonic structures; metamaterials)