Presentation Title

Ultra-sensitive Refractive Index Sensing Using Multilayer Plasmonic Structures

Faculty Mentor

Ertan Salik

Start Date

17-11-2018 8:15 AM

End Date

17-11-2018 8:30 AM

Location

C327

Session

Oral 1

Type of Presentation

Oral Talk

Subject Area

physical_mathematical_sciences

Abstract

Hyperbolic Metamaterials (HMMs) are multilayer structures which allow the propagation of Bulk Plasmon Polaritons (BPPs). BPP modes are result of interaction combination of Surface Plasmon Polaritons (SPPs) and Long-Range Surface Plasmon Polaritons (LRSPPs). These HMMs are made from nanolayers of alternating conducting and dielectric materials. They have many potential applications, including refractive index sensing, due to the very high effective refractive index (ERI) of modes propagating within these structures. We specifically are interested in biomedical refractive index sensing, and for this purpose our structures must achieve a very high sensitivity. In order to achieve this goal, we optimized the grating coupling of the structure and narrowed the resonance peak to increase sensitivity.

Summary of research results to be presented

We will present the optimized parameters of the geometric structure, the optimized parameters of the grating coupling, and an analysis of which modes propagating within the structure produce the highest sensitivity.

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Nov 17th, 8:15 AM Nov 17th, 8:30 AM

Ultra-sensitive Refractive Index Sensing Using Multilayer Plasmonic Structures

C327

Hyperbolic Metamaterials (HMMs) are multilayer structures which allow the propagation of Bulk Plasmon Polaritons (BPPs). BPP modes are result of interaction combination of Surface Plasmon Polaritons (SPPs) and Long-Range Surface Plasmon Polaritons (LRSPPs). These HMMs are made from nanolayers of alternating conducting and dielectric materials. They have many potential applications, including refractive index sensing, due to the very high effective refractive index (ERI) of modes propagating within these structures. We specifically are interested in biomedical refractive index sensing, and for this purpose our structures must achieve a very high sensitivity. In order to achieve this goal, we optimized the grating coupling of the structure and narrowed the resonance peak to increase sensitivity.