Low-threshold optical bistability in field-enhanced nonlinear guided-mode resonance grating nanostructure

Optics Letters
Zhiqiang GeWenfu Zhang

Abstract

We have numerically studied the optical bistability in guided-mode resonance-assisted nonlinear grating nanostructure. A low-index slot is introduced to significantly improve the confinement of light in nonlinear material. In this way, the proposed novel configuration possesses low-threshold optical switching intensity (∼3  MW/cm2), which is about 58 times lower than that of typical nonlinear grating nanostructure without the low-index slot. This bistability study provides an effective method to reduce the threshold of optical switching intensity and thus can be applied in optical logic, optical computation, and all-optical memory.

References

Jan 7, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Marin SoljacićJ D Joannopoulos
Jun 24, 2004·Optics Letters·Vilson R AlmeidaMichal Lipson
Jun 23, 2006·Nature·Mark A FosterAlexander L Gaeta
Dec 20, 2007·Optics Letters·Z S LiuR Magnusson
Oct 15, 2008·Optics Express·Jacob T RobinsonMichal Lipson
Jan 7, 2010·Optics Express·Quang Minh NgoRobert Magnusson
May 21, 2010·Physical Review Letters·Frank BrücknerRoman Schnabel
Mar 4, 2011·Optics Letters·D de CegliaM Scalora

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