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Virtual electromagnetic absorption and energy storage by a Hermitian system via complex frequency excitation

A.E. Krasnok ; Denis Baranov (Institutionen för fysik (Chalmers)) ; A. Alú
Optics InfoBase Conference Papers (CLEO: QELS_Fundamental Science 2017; San Jose; US; 14-19 May 2017) Vol. Part F42-CLEO_QELS 2017 (2017), p. paper FM1G.3.
[Konferensbidrag, refereegranskat]

© OSA 2017. Hermitian systems, with no Ohmic loss, support virtual absorbing modes located in the complex frequency plane. Although being usually considered non-physical due to their divergent exponential time dependence, these modes play a crucial role in the overall scattering response. Here, we access these modes and use them for virtual absorption and storage of light by specifically shaping the incident excitation with exponentially growing envelopes.



Denna post skapades 2017-07-18.
CPL Pubid: 250741

 

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Institutioner (Chalmers)

Institutionen för fysik (Chalmers)

Ämnesområden

Atom- och molekylfysik och optik

Chalmers infrastruktur