%0 Journal Article
%T Hybrid thermal Yagi-Uda nanoantennas for directional and narrow band long-wavelength IR radiation sources
%+ Dipartimento di Fisica [Roma La Sapienza]
%+ Laboratoire Charles Coulomb (L2C)
%+ Théorie du rayonnement matière et phénomènes quantiques
%A Centini, Marco
%A Larciprete, Maria Cristina
%A Li Voti, Roberto
%A Bertolotti, Mario
%A Sibilia, Concita
%A Antezza, Mauro
%< avec comité de lecture
%Z L2C:20-055
%@ 1094-4087
%J Optics Express
%I Optical Society of America - OSA Publishing
%V 28
%P 19334
%8 2020-06-17
%D 2020
%R 10.1364/OE.389837
%Z Physics [physics]/Quantum Physics [quant-ph]
%Z Physics [physics]/Condensed Matter [cond-mat]/Quantum Gases [cond-mat.quant-gas]
%Z Physics [physics]/Physics [physics]/Atomic and Molecular Clusters [physics.atm-clus]
%Z Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph]
%Z Physics [physics]/Physics [physics]/Optics [physics.optics]Journal articles
%X We investigate the possibility of spatially and spectrally controlling the thermal infrared emission by exploitation of the Yagi–Uda antenna design. Hybrid antennas composed of both SiC and Au rods are considered and the contributions of emission from all the elements, at a given equilibrium temperature, are taken into account. We show that the detrimental effect due to thermal emission from the not ideal parasitic elements drastically affect the performances of conventional thermal Au antennas in the 12 μm wavelength range. Nevertheless, our results show that the hybrid approach allows the development of efficient narrow-band and high directivity sources. The possibility of exploiting the Yagi-Uda design both in transmission and in reception modes, may open the way to the realization of miniaturized, efficient, robust and cheap sensor devices for mass-market applications.
%G English
%2 https://hal.science/hal-02871572/document
%2 https://hal.science/hal-02871572/file/66-OE_28_19334_2020.pdf
%L hal-02871572
%U https://hal.science/hal-02871572
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021