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ABSTRACT
In this paper, we investigated the surface plasmon resonance of metallo-dielectric core-shell nanoparticle in the near-infrared (NIR) regime of the light. The wavelength-dependent permittivity of the metal has been deduced by the Lorentz-Drude (LD) model. We have analytically analyzed the polarizability and scattering cross-section of the core-shell nanoparticle in the NIR regime, i.e. 1400–3000 nm. The resonance has been attained due to the surface plasmon resonance (SPR) at the interface of the metal (with negative permittivity) and dielectric interface. Furthermore, the effects of core-shell radii on polarizability and scattering cross-section of core-shell nanoparticle have been taken up. It has been noticed that resonance can be altered by tailoring core-shell radii of the metallo-dielectric nanoparticle. Such a structure would be useful in integrated photonic applications.
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No potential conflict of interest was reported by the authors.
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Notes on contributors
Aijaz Ali
Aijaz Ali received the MSc and the MPhil degree in electronics from Quaid-i-Azam University Islamabad, Pakistan in 2014 and 2018, respectively. Currently, he is working as visiting faculty member at department of Electronics Quaid-i-Azam University Islamabad. His research interests are electromagnetics, surface plasmons of core-shell nanoparticles, and optical properties of materials.
Qaisar Abbas Naqvi
Qaisar Abbas Naqvi obtained his PhD degree in 1998 in electronic from the Quaid-i-Azam University, where he is Professor now. From May 2000 to August 2001, he was postdoc fellow at Toho University, Japan. During 2011, he visited Pennsylvania State University, USA for joint research activity. From January 2010 to February 2013, Dr Naqvi served as Chairman, Department of Electronics. He is coauthor of one book and more than 200 research articles in well reputed international journals. He has supervised 14 PhD and 72 MPhil students. He is also serving as a referee for more than 20 international journals. He is senior member of SPIE and also serving as SPIE Chapter Advisor for Quaid-i-Azam University since last seven years. His research interests include fractional electromagnetics, optics, metamaterials, Kobayashi potential method, high-frequency techniques and Maslov's method.
Muhammad Abuzar Baqir
Muhammad Abuzar Baqir received MSc and MPhil degrees from department of Electronics Quaid-i-Azam University Islamabad, in 2008 and 2011, respectively. Thereafter, he received doctoral degree from the institute of Microengineering and Nanoelectronics belonging to the Universiti Kebangsaan Malaysia (The National University of Malaysia), in 2017. Since 2017, he is working as a tenure track Assistant Professor in the Department of Electrical Engineering at COMSATS University Islamabad, Sahiwal campus. His current research interests include light-matter interaction, photonic crystals, graphene, periodic structures, core-shell nanoparticle and metamaterial absorbers. He has earned more than 50 publications in peer-reviewed reputed international journals and conference proceedings; he has contributed to two book chapter. He serves as a reviewer in the IEEE Photonics Technology Letters, IEEE Antenna and Wireless Propagation Letters, IEEE Photonics Journal, IEEE Sensors Journal, IEEE Access, IET Electronics Letters, IET Micro and Nano Letters, IET Power Electronics, Optics Communication (outstanding reviewer 2016), Journal of Electromagnetic Waves and Application, and among others.