Multipolarized gold dipole nanoantennas for IR focal plane arrays: an infrared detection approach

Abstract

This article proposes a plasmonic resonance-based optical nanoantennas geometry, called multipolarized, for the use of infrared sensors on focal plane array (FPA) substrates. The fabricated nanoantennas with electronbeam lithography and their determined resonance frequency through infrared spectroscopy and finite element simulation are the results presented in this work. We present a strategy for designing and fabricating nanoantennas with high performance and sensitivity for infrared sensors. The proposed multipolarized nanoantenna geometry can be used in plan array sensors for thermal imaging detection, providing high performance and sensitivity in the infrared range.