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Harnessing blackbody radiation of hot nanoemitters with plasmonic nanoantennas (Orale)

Abstract : In recent decades, researchers have demonstrated incandescent sources that exhibit monochromatic, directional, and even fast modulated infrared emission. Most of the researchers achieve this type of emission by heating the whole device. Here, we propose heating only nanovolumes that can be cooled in a few tens of nanoseconds. This approach could enable high-speed modulation. To compensate for the weak thermal emission of such isolated nanoemitters, we propose inserting the hot nanovolume in the gap of a cold nanoantenna. We calculate the resulting emission enhancement by using a generalized version of Kirchhoff’s law, and demonstrate that careful design of the complete antenna–nanoemitter system can result in emission enhancements of more than four orders of magnitude.
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https://hal-iogs.archives-ouvertes.fr/hal-01708890
Contributor : Fatima Pereira <>
Submitted on : Wednesday, February 14, 2018 - 11:34:39 AM
Last modification on : Tuesday, November 5, 2019 - 12:34:04 PM

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  • HAL Id : hal-01708890, version 1

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Emilie Sakat, Léo Wojszvzyk, Jean-Paul Hugonin, Mondher Besbes, Christophe Sauvan, et al.. Harnessing blackbody radiation of hot nanoemitters with plasmonic nanoantennas (Orale). The 8th International Conference on Surface Plasmon Photonics (SPP8), May 2017, Taïwan, China. pp.233. ⟨hal-01708890⟩

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