Controlling Fano resonances in multilayer dielectric gratings towards optical bistable devices

Document Type

Article

Publication Date

12-1-2018

Abstract

The spectral properties of Fano resonance generated in multilayer dielectric gratings (MDGs) are reported and numerically investigated in this paper. We examine the MDG consisting of numerous identically alternative chalcogenide glass (As2S3) and silica (SiO2) multilayers with several grating widths inscribed through the structure, emphasizing quality (Q) and asymmetric (q) factors. Manipulation of Fano lineshape and its linear characteristics can be achieved by tailoring the layers’ amount and grating widths so that the proposed structure can be applicable for several optical applications. Moreover, we demonstrate the switching/bistability behaviors of the MDG at Fano resonance which provide a significant switching intensity reduction compared to the established Lorentzian resonant structures.

Identifier

85056102802 (Scopus)

Publication Title

Scientific Reports

External Full Text Location

https://doi.org/10.1038/s41598-018-34787-9

e-ISSN

20452322

PubMed ID

30401800

Issue

1

Volume

8

Grant

103.03-2017.02

Fund Ref

National Foundation for Science and Technology Development

This document is currently not available here.

Share

COinS