Plasmonic Nanoantenna Array Design

Abstract

Recently, wireless optical communication system is developing toward the chip level. Optical nanoantenna array in optical communication system is the key component for radiating and receiving light. In this chapter, we propose a sub-wavelength plasmonic nanoantenna with high gain operating at the standard optical communication wavelength of 1550 nm. The designed plasmonic antenna has a good matching with the silicon waveguide in a wide band, and light is fed from the bottom of the nanoantenna via the silicon waveguide. Furthermore, we design two kinds of antenna arrays with the proposed plasmonic nanoantenna, including one-and two-dimensional arrays (1 × 8 and 8 × 8). The radiation characteristics of the antenna arrays are investigated and both arrays have high gains and wide beam steering range without grating lobes.

Theoretical analysis of a graphene quantum well hybrid plasmonic waveguide to design an inter/intra-chip nano-antenna

“…The scheme of a 1×5 array of HPWA based on the graphene quantum well is depicted in has a destructive effect on the intermediate broadside radiation pattern, which is related to the appearance of grating lobes [46,47]. It is due to the distance between the adjacent elements, which is approximately one wavelength and exceeds a half wavelength based on the product principle [46]. To eradicate the grating lobes, the distance between the elements should be decreased but it leads to the variation of mutual coupling between the adjacent elements.…”

Preparation and properties of Ag plasmonic structures on garnet substrates

“…In recent years, significant attention is paid to plasmonic effects of metal nanoparticles (NPs) formed in the volume or on the surface of dielectrics. A lot of applications of plasmonics have been reported recently, in particular for photoluminescence (PL) enhancement (You et al 2020;Chao et al 2010;Sun and Khurgin 2011;Abdellaoui et al 2015;Pradhan et al 2017), surface-enhanced Raman scattering (Crozier et al 2014;Wang and Kong 2015;Lane et al 2015;Wang et al 2020), nanoantennas (Dong et al 2020;Maksymov 2016;Fitzgerald et al 2017), waveguides (Ma et al 2019;Guo et al 2013), biological and medical applications (Stuart et al 2005;Verma 2018;Han et al 2019;Krajczewski et al 2017). These applications are based on the non-linear optical properties of metal nanoparticles due to incident light interaction with free electrons of metal nanoparticles.…”