No pain, no gain: on the modeling of a nanostructured active medium

Didier Felbacq; Emmanuel Kling

doi:10.1117/12.2320305

7 September 2018 No pain, no gain: on the modeling of a nanostructured active medium

Didier Felbacq, Emmanuel Kling

Proceedings Volume 10731, Nanostructured Thin Films XI; 1073109 (2018) https://doi.org/10.1117/12.2320305
Event: SPIE Nanoscience + Engineering, 2018, San Diego, California, United States

Abstract

Several aspects of photonics, such as laser cavities, random lasing, plasmonics, strong coupling with matter etc. requires the description of a medium exhibiting gain. A very simple model consists in using an effective permittivity with a sign changing imaginary part, as compared to a non-active material. Using this model, we investigate the possibility of controlling the closing or opening of a band-gap inside a dielectric metamaterial. Further, we question the model itself and show that it leads to non-physical effects. The conclusion is that the model is not reliable for more than a short time description of the physics at stake.

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Citation Download Citation

Didier Felbacq and Emmanuel Kling "No pain, no gain: on the modeling of a nanostructured active medium", Proc. SPIE 10731, Nanostructured Thin Films XI, 1073109 (7 September 2018); https://doi.org/10.1117/12.2320305

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