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APS » Journals » Phys. Rev. B » Volume 70 » Issue 8
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Phys. Rev. B 70, 081402(R) (2004) [4 pages]

Optical bistability in subwavelength slit apertures containing nonlinear media

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J. A. Porto1, L. Martín-Moreno2, and F. J. García-Vidal1
1Departamento de Física Teórica de la Materia Condensada, Facultad de Ciencias (C-V), Universidad Autónoma de Madrid, E-28049 Madrid, Spain
2Departamento de Física de la Materia Condensada, ICMA-CSIC, Universidad de Zaragoza, E-50015 Zaragoza, Spain

Received 25 March 2004; revised 12 May 2004; published 13 August 2004

We develop a self-consistent method to study the optical response of metallic gratings with nonlinear media embedded within their subwavelength slits. An optical Kerr nonlinearity is considered. Due to the large E fields associated with the excitation of the transmission resonances appearing in this type of structure, moderate incoming fluxes result in drastic changes in the transmission spectra. Importantly, optical bistability is obtained for certain ranges of both flux and wavelength.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.70.081402
DOI:
10.1103/PhysRevB.70.081402
PACS:
78.20.Ci, 42.65.Pc, 73.20.Mf
 
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