Article
Engineering Casimir interactions with epsilon-near-zero materials
Author/s | Camacho Aguilar, Miguel
Tao Gong Benjamin Spreng Iñigo Liberal Nader Engheta Jeremy N. Munday |
Department | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo |
Publication Date | 2022-06-03 |
Deposit Date | 2022-06-08 |
Published in |
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Abstract | In this paper, we theoretically demonstrate the tunability of the Casimir force both in sign and magnitude
between parallel plates coated with dispersive materials. We show that this force, existing between uncharged
plates, ... In this paper, we theoretically demonstrate the tunability of the Casimir force both in sign and magnitude between parallel plates coated with dispersive materials. We show that this force, existing between uncharged plates, can be tuned by carefully choosing the value of the plasma frequency (i.e., the epsilon-near-zero frequency) of the coating in the neighborhood of the resonance frequency of the cavity. The coating layer enables a continuous variation of the force between four limiting values when a coating is placed on each plate. We explore the consequences of such variation when pairs of electric and magnetic conductors (i.e., low and high impedance surfaces) are used as substrates on either side, showing that this continuous variation results in changes in the sign of the force, leading to both stable and unstable conditions, which could find interesting potential applications in nanomechanics, including nanoparticle tweezing. |
Funding agencies | Defense Advanced Research Program Agency (DARPA). United States Ministerio de Ciencia e Innovación (MICIN). España |
Project ID. | PID2020-116739GB-I00
HR00112090084 |
Citation | Camacho Aguilar, M., Tao Gong, , Benjamin Spreng, , Iñigo Liberal, , Nader Engheta, y Jeremy N. Munday, (2022). Engineering Casimir interactions with epsilon-near-zero materials. Physical Review A, 105 (6), L061501. |
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PhysRevA.105.L061501.pdf | 869.6Kb | [PDF] | View/ | Artículo publicado |
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