期刊
NANO LETTERS
卷 11, 期 4, 页码 1603-1608出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl104514m
关键词
Silver nanowire; plasmonic waveguide; bending loss; plasmonic circuit; plasmon propagation; bending radius
类别
资金
- DARPA [HR0011-09-C-0142]
- BES DOE [DE-FG02-07ER46394]
- NSF [DMS0706436, CMMI 0403671]
- National Institute For Materials, Japan
- NSFC [10625418, 10874233]
- MOST [2007CB936800, 2009CB930700]
- CAS [KJCX2-EW-W04]
- Airforce
Plasmonic waveguides made of metal nanowires (NWs) possess significant potential for applications in integrated photonic and electronic devices. Energy loss induced by bending of a NW during light propagation is critical in affecting its performance as a plasmonic waveguide. We report the characterization of the pure bending loss in curved crystalline silver NW plasmonic waveguicles by decoupling the energy loss caused by bending and propagation. The energy attenuation coefficiency due purely to bending was also determined, which exhibited an exponential relationship with the bending radius. Finite-difference-time-domain (FDTD) methods were utilized for theoretical simulations, which matched the experimental results well.
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