A wide bandgap plasmonic Bragg reflector
Optics Express, Vol. 16, Issue 7, pp. 4888-4894 (2008)
http://dx.doi.org/10.1364/OE.16.004888
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Abstract
Surface plasmon polaritons (SPPs) Bragg reflector with more excellent optical properties are investigated numerically. By introducing a finite array of periodic grooves on the two surfaces of metal-insulator-metal (MIM) waveguide, we fulfill the periodical changes of effective refractive index, which leads to the photonic band gap (PBG). And it has been further widened by inserting a dielectric material with higher refractive index in the waveguide with narrow slit width. Finite difference time domain (FDTD) simulation confirms the widened bandgap. In addition, a SPP nanocavity is introduced by breaking the periodicity of our proposed structure.
© 2008 Optical Society of America
OCIS Codes
(230.1480) Optical devices : Bragg reflectors
(240.6680) Optics at surfaces : Surface plasmons
ToC Category:
Optics at Surfaces
History
Original Manuscript: February 15, 2008
Revised Manuscript: March 19, 2008
Manuscript Accepted: March 19, 2008
Published: March 26, 2008
Citation
Jian -Qiang Liu, Ling-Ling Wang, Meng-Dong He, Wei-Qing Huang, Dianyuan Wang, B. S. Zou, and Shuangchun Wen, "A wide bandgap plasmonic Bragg reflector," Opt. Express 16, 4888-4894 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-7-4888
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