期刊
OPTICS EXPRESS
卷 19, 期 23, 页码 22607-22618出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.19.022607
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资金
- National Science Foundation (NSF) [ECCS-0954790]
- Office of Naval Research [11PR00755-00 P00001]
- Massachusetts Life Science Center
- NSF Engineering Research Center on Smart Lighting [EEC-0812056]
- Photonics Center
- DoD/Army Research Laboratory [W911NF-06-2-0040]
- Scientific and Technological Research Council of Turkey (TUBITAK)
We experimentally and numerically demonstrate a planar metamaterial consisting of two asymmetrically positioned pi-structures in a single unit that exhibits plasmonic analogue of electromagnetically induced transparency (EIT). Through the coupling of the constituent nanorod elements, the proposed structure enables fine spectral tuning of the EIT-like behavior and controlling the location of near field enhancement. Originated from the asymmetric cascaded pi-structures, we introduce a more compact system which possesses the EIT-like characteristics and as well as much smaller mode volumes. Due to these properties, the proposed metamaterials can be utilized for a wide range of applications including bio-chemical sensors, optical filters and modulators and enhancement of non-linear processes. (C)2011 Optical Society of America
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