Work

True thermal antenna with hyperbolic metamaterials

Year: 2017

Type: article

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.

Source: Optics Express

DOI: 10.1364/oe.25.023356

Authors: Grégory Barbillon, Emilie Sakat, Jean-Paul Hugonin, Svend-Age Biehs, Philippe Ben-Abdallah

Language: English

Topic: Thermal Radiation and Cooling Technologies

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

OpenAlex ID: W2513726424

FWCI: 0.856

Cites: 21

Cited by: 18

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