Steerable optical antennas by selective heating



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Cuadrado, Alexander and Gonzalez, Francisco Javier and Alda, Javier (2014) Steerable optical antennas by selective heating. Optics letter, 39 (7). pp. 1957-1960. ISSN 0146-9592

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Directional steerability can be obtained for an array of optical antennas through selective heating of the individual elements. Heating changes electrical conductivity of the heated element, which affects the phase of the generated currents. The variation in temperature can be obtained by modifying the biasing point of the individual elements of the array, which would allow fast reconfiguration. The numerical evaluation of the performance of an array of a reduced number of antennas (2 and 3) shows the feasibility of this approach.

Item Type:Article
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This paper was published in Optics Letters 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: []. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Uncontrolled Keywords:Infrared; Plasmonics; Subwavelength structures; Resonance domain; Computational electromagnetic methods;Phased-array imaging systems
Subjects:Sciences > Physics > Optics
ID Code:29500
Deposited On:27 Apr 2015 16:20
Last Modified:27 Apr 2015 16:20

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