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Proceedings Paper

Bistability in a non linear grating: a FD-TD approach
Author(s): Luca Saccomandi; Fabrizio Fogli; Paolo Bassi; Gaetano Bellanca; Stefano Trillo
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Paper Abstract

The transmission properties of a one-dimensional grating with a Kerr nonlinearity, at operating frequencies close to the upper edge of the stop-band, have been investigated using the Finite Difference Time Domain (FD-TD) technique. Results show that the structure exhibits a bistable behavior: transitions from strong reflection to nonlinearity-induced transparency and viceversa are found, leading to high-intensity field localization within the grating. In the limit of shallow gratings, FD-TD results are in good agreement with those based on coupled-mode theory (CMT).

Paper Details

Date Published: 19 November 2003
PDF: 3 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.524584
Show Author Affiliations
Luca Saccomandi, Univ. degli Studi di Bologna (Italy)
Fabrizio Fogli, Univ. degli Studi di Bologna (Italy)
Paolo Bassi, Univ. degli Studi di Bologna (Italy)
Gaetano Bellanca, Univ. degli Studi di Ferrara (Italy)
Stefano Trillo, Univ. degli Studi di Ferrara (Italy)


Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life
Giancarlo C. Righini; Anna Consortini, Editor(s)

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