2019年第80回応用物理学会秋季学術講演会

講演情報

一般セッション(口頭講演)

4 JSAP-OSA Joint Symposia 2019 » 4.1 Plasmonics and Nanophotonics

[18a-E208-1~9] 4.1 Plasmonics and Nanophotonics

2019年9月18日(水) 09:00 〜 11:30 E208 (E208)

Verma Prabhat(阪大)

11:00 〜 11:15

[18a-E208-8] On the Scattering by SiO2-VO2 Core-Shell Nanoparticle

Pankaj Kumar Choudhury1、M.A. Baqir2、Q.A. Naqvi3 (1.Univ. Kebangsaan Malaysia、2.COMSATS Univ. Islamabad、3.Quaid-i-Azam Univ.)

キーワード:Nano-structured mediums, Scattering characteristics, Complex mediums

The scattering of waves remains greatly important phenomenon of research focus involving the objects having size parameters ranging from macro- to nano-structured dimensions. Among the others, some of the notable examples would include the radar- and antenna-related applications. Electromagnetic cloaking is greatly dependent on the extent of scattering response. The role of scattering has been discussed in the context of metamaterials comprised of metal-dielectric partners crafted in certain forms. Surface plasmon resonance remains the prime feature as the effects can be tailored depending on the shape and size of meta-atoms. VO2 being a phase-changing material, here we discuss the scattering characteristics of SiO2-VO2 nanoshells considering different core/shell dimensional parameters, and also, the ambient temperature. It has been found that the scattering cross-section greatly depends on the operating temperature as well as nanoshell dimensions. Also, the nanoshells can be designed to exhibit very low scattering in certain regions of electromagnetic spectrum.