Open AccessSeebeck nanoantennas for the detection and characterization of infrared radiation
Author(s) -
Edgar Briones,
Alexander Cuadrado,
Joel Briones,
Ramón Díaz de León,
Juan Carlos Martínez Antón,
Stefan McMurtry,
M. Hehn,
F. Montaigne,
Javier Alda,
Francisco González
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.0a1538
Subject(s) - responsivity , infrared , optics , materials science , optoelectronics , thermoelectric effect , polarization (electrochemistry) , wavelength , characterization (materials science) , radiation , photodetector , physics , chemistry , thermodynamics
Arrays of metallic thermocouples in the shape of spiral nanoantennas are proposed as infrared detectors, which use the thermoelectric properties of the metallic interfaces to generate electrical DC signals. The responsivity of these types of antennas is evaluated from both theoretical and numerical perspectives pointing out its potential as infrared sensors. Moreover, the same structures can be used to characterize the state of polarization of the optical near fields with a spatial resolution comparable to the wavelength.