Journal
OPTICS EXPRESS
Volume 25, Issue 2, Pages 1062-1072Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.25.001062
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Funding
- National Natural Science Foundation of China (NSFC) [11374223, 61378037]
- National Science of Jiangsu Province [BK20161210]
- Qiang Lan project, 333 project [BRA2015353]
- Scientific Research Starting Foundation - Jiangnan University
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We carry out a theoretical study on optical bistability of near field intensity and transmittance in two-dimensional nonlinear composite slab. This kind of 2D composite is composed of nonlocal metal/Kerr-type dielectric core-shell inclusions randomly embedded in the host medium, and we derivate the nonlinear relation between the field intensity in the shell of inclusions and the incident field intensity with self-consistent mean field approximation. Numerical demonstration has been performed to show the viable parameter space for the bistable near field. We show that nonlocality can provide broader region in geometric parameter space for bistable near field as well as bistable transmittance of the nonlocal composite slab compared to local case. Furthermore, we investigate the bistable transmittance in wavelength spectrum, and find that besides the input intensity, the wavelength operation could as well make the transmittance jump from a high value to a low one. This kind of self-tunable nano-composite slab might have potential application in optical switching devices. (C) 2017 Optical Society of America
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