Briones, EdgarCuadrado, AlexanderBriones, JoelDíaz de León, RamónMartínez Antón, Juan CarlosMcMurtry, StefanHehn, MichelMontaigne, FrançoisAlda Serrano, JavierGonzález, Francisco Javier2023-06-192023-06-192014-09-171094-408710.1364/OE.22.0A1538https://hdl.handle.net/20.500.14352/33991This paper was published in [Optics Express] and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: [http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-S6-A1538]. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.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.engjournal articlehttp://dx.doi.org/10.1364/OE.22.0A1538http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-S6-A1538restricted access535.14535.24-1InfraredQuantum detectorsNanostructuresElectrónica (Física)Óptica (Física)Teoría de los quanta2209.19 Óptica Física2210.23 Teoría Cuántica