22 results

Spectral Green's Function for SPR Meta-Structures

Journal Article
Iovine, R., La Spada, L., Tarparelli, R., & Vegni, L. (2014)
Spectral Green's Function for SPR Meta-Structures. Materials Science Forum, 792, 110-114. doi:10.4028/www.scientific.net/msf.792.110
In this paper we propose a new approach to study the electromagnetic field in Surface Plasmon Resonance (SPR) meta-structures. The geometry is a planar structure infinitely ex...

Surface Wave Cloak from Graded Refractive Index Nanocomposites

Journal Article
La Spada, L., McManus, T. M., Dyke, A., Haq, S., Zhang, L., Cheng, Q., & Hao, Y. (2016)
Surface Wave Cloak from Graded Refractive Index Nanocomposites. Scientific Reports, 6(1), 29363. https://doi.org/10.1038/srep29363
Recently, a great deal of interest has been re-emerged on the possibility to manipulate surface waves, in particular, towards the THz and optical regime. Both concepts of Tran...

Electromagnetic modeling of ellipsoidal nanoparticles for sensing applications

Journal Article
Spada, L. L., Iovine, R., & Vegni, L. (2013)
Electromagnetic modeling of ellipsoidal nanoparticles for sensing applications. Optical Engineering, 52(5), 051205. doi:10.1117/1.oe.52.5.051205
We present a new analytical study of metallic nanoparticles, working in the infrared and visible frequency range. The structure consists of triaxial ellipsoidal resonating inc...

Metamaterial-based wideband electromagnetic wave absorber

Journal Article
La Spada, L., & Vegni, L. (2016)
Metamaterial-based wideband electromagnetic wave absorber. Optics express, 24(6), 5763. https://doi.org/10.1364/oe.24.005763
In this paper, an analytical and numerical study of a new type of electromagnetic absorber, operating in the infrared and optical regime, is proposed. Absorption is obtained b...

Electromagnetic Nanoparticles for Sensing and Medical Diagnostic Applications

Journal Article
La Spada, L., & Vegni, L. (2018)
Electromagnetic Nanoparticles for Sensing and Medical Diagnostic Applications. Materials, 11(4), 603. https://doi.org/10.3390/ma11040603
A modeling and design approach is proposed for nanoparticle-based electromagnetic devices. First, the structure properties were analytically studied using Maxwell’s equations....

Modeling, design, and synthesis of gram-scale monodispersed silver nanoparticles using microwave-assisted polyol process for metamaterial applications

Journal Article
Lalegani, Z., Ebrahimi, S. S., Hamawandi, B., La Spada, L., & Toprak, M. (2020)
Modeling, design, and synthesis of gram-scale monodispersed silver nanoparticles using microwave-assisted polyol process for metamaterial applications. Optical Materials, 108, https://doi.org/10.1016/j.optmat.2020.110381
High-yield monodispersed silver (Ag) nanospheres were modeled, designed, and synthesized by microwave-assisted (MW-assisted) polyol method from AgNO3, polyvinyl pyrrolidone (P...

The Graphene Field Effect Transistor Modeling Based on an Optimized Ambipolar Virtual Source Model for DNA Detection

Journal Article
Akbari, M., Shahbazzadeh, M. J., La Spada, L., & Khajehzadeh, A. (2021)
The Graphene Field Effect Transistor Modeling Based on an Optimized Ambipolar Virtual Source Model for DNA Detection. Applied Sciences, 11(17), Article 8114. https://doi.org/10.3390/app11178114
The graphene-based Field Effect Transistors (GFETs), due to their multi-parameter characteristics, are growing rapidly as an important detection component for the apt detectio...

Metamaterial-based Sensor Design Working in Infrared Frequency Range

Journal Article
La Spada, L., Bilotti, F., & Vegni, L. (2011)
Metamaterial-based Sensor Design Working in Infrared Frequency Range. Progress in electromagnetics research B: PIER B, 34, 205-223. https://doi.org/10.2528/pierb11060303
In this paper, we propose the design of high sensitivity and selectivity metamaterial-based biosensors operating in the THz regime. The proposed sensors consist of planar arra...

Targeted dielectric coating of silver nanoparticles with silica to manipulate optical properties for metasurface applications

Journal Article
Lalegani, Z., Ebrahimi, S. S., Hamawandi, B., La Spada, L., Batili, H., & Toprak, M. (2022)
Targeted dielectric coating of silver nanoparticles with silica to manipulate optical properties for metasurface applications. Materials Chemistry and Physics, 287, Article 126250. https://doi.org/10.1016/j.matchemphys.2022.126250
An epsilon-negative metamaterial (ENM) containing core@shell nanoparticles (NPs) was designed, where silver (Ag) NPs served as core and silica (SiO2) was used as spacer shell....

Surface plasmon resonance of nanoshell particles with PMMA-graphene core

Journal Article
Tarparelli, R., Iovine, R., La Spada, L., & Vegni, L. (2014)
Surface plasmon resonance of nanoshell particles with PMMA-graphene core. COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 33(6), 2016-2029. doi:10.1108/compel-11-2013-0351
The purpose of this paper is to contribute an analytical and numerical study of a new type of nanoshell particles operating in the visible regime. The structure consists of a ...

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