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1 August 2021 A new mechanism for gain in time dependent media
John B. Pendry, Emanuele Galiffi, Paloma Huidobro
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Proceedings Volume 11795, Metamaterials, Metadevices, and Metasystems 2021; 1179517 (2021) https://doi.org/10.1117/12.2593822
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States
Abstract
Energy can be added to electromagnetic waves in several different fashions. We identify a mechanism, distinct from conventional ones, in which compression of lines of force is the active ingredient. There are instances of this in other contexts: a superconductor repels magnets because the magnetic lines of forces are compressed as they are rejected by the superconductor. We show that in some circumstances the number of lines of force, electric and magnetic, in a time dependent system is conserved and amplification occurs when these lines of force are squeezed closer together.
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John B. Pendry, Emanuele Galiffi, and Paloma Huidobro "A new mechanism for gain in time dependent media", Proc. SPIE 11795, Metamaterials, Metadevices, and Metasystems 2021, 1179517 (1 August 2021); https://doi.org/10.1117/12.2593822
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KEYWORDS
Magnetism
Superconductors
Electromagnetic radiation
Modulation
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