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.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Hoang TT,Ngo QM,Vu DL,Nguyen HPTdoi
10.1038/s41598-018-34787-9subject
Has Abstractpub_date
2018-11-06 00:00:00pages
16404issue
1issn
2045-2322pii
10.1038/s41598-018-34787-9journal_volume
8pub_type
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