Mode-matched Fano resonances for all-optical switching applications

OPTICS COMMUNICATIONS

卷:285

Article

Mattiucci, Nadia¹  D'Aguanno, Giuseppe¹  Bloemer, Mark J.² 

[1] AEgis Tech, Nanogenesis Div, Huntsville, AL 35806 USA

[2] Charles M Bowden Lab, Redstone Arsenal, AL 35898 USA

关键词: All-optical switching;    Subwavelength gratings;    Fano resonances;    Chalcogenide glasses;   

DOI  :  10.1016/j.optcom.2011.11.118

来源: Elsevier

【 摘 要 】

We introduce the concept of mode-matched Fano resonances in one-dimensional, subwavelength, diffraction gratings. These resonances are characterized by an extremely high quality (Q)-factor and lend themselves well for applications to ultra-low power, all-optical switching devices at telecommunication wavelengths. We provide examples of diffraction gratings made of a chalcogenide glass (As2S3) where, thanks to the mode-matched Fano resonances, all-optical switching is obtained at local field intensities well below the photo-darkening threshold of the material. (C) 2011 Elsevier B.V. All rights reserved.

【 授权许可】

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