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Journal articles
True thermal antenna with hyperbolic metamaterials
Abstract : A thermal antenna is an electromagnetic source that emits in its surrounding a spatially coherent field in the infrared frequency range. Usually, its emission pattern changes with the wavelength so that the heat flux it radiates is weakly directive. Here, we show that a class of hyperbolic materials of type II possess a Brewster angle, which is weakly dependent on the wavelength, so that they can radiate like a true thermal antenna with a highly directional and p-polarized heat flux. The realization of these sources could open a new avenue in the field of thermal management in far-field regime.
https://hal-iogs.archives-ouvertes.fr/hal-01690634
Contributor : Fatima Pereira Connect in order to contact the contributor
Submitted on : Tuesday, January 23, 2018 - 11:37:14 AM
Last modification on : Tuesday, April 12, 2022 - 9:38:02 AM
Contributor : Fatima Pereira Connect in order to contact the contributor
Submitted on : Tuesday, January 23, 2018 - 11:37:14 AM
Last modification on : Tuesday, April 12, 2022 - 9:38:02 AM
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