Light-induced "plasmonic" properties of organic materials: surface polaritons, bistability and switching waves

Boris D. Fainberg; Nikolay N. Rosanov; Nikolay A. Veretenov; Boris Apter

doi:10.1117/12.2272741

25 August 2017 Light-induced "plasmonic" properties of organic materials: surface polaritons, bistability and switching waves

Boris D. Fainberg, Nikolay N. Rosanov, Nikolay A. Veretenov, Boris Apter

Author Affiliations +

Proceedings Volume 10360, Light Manipulating Organic Materials and Devices IV; 1036003 (2017) https://doi.org/10.1117/12.2272741
Event: SPIE Organic Photonics + Electronics, 2017, San Diego, California, United States

Abstract

Purely organic materials with negative and near-zero dielectric permittivity can be easily fabricated, and propa- gation of surface polaritons at the material/air interface was demonstrated. Here we develop a mean-eld theory of nonlinear light-induced "plasmonic" properties of organic materials. The theory describes both a red shift of the resonance frequency of isolated molecules, according to the Clausius-Mossotti Lorentz-Lorentz mecha- nism, and the wide variations of their spectra related to the aggregation of molecules into J- or H-aggregates. The bistable response of organic materials in the condensed phase has been demonstrated using the electron- vibrational model. We predict the generation of the switching waves, or kinks in the bistable organic thin lms that enable us to observe a bistable behaviour of the surface polaritons at the organic thin lm/dielectric inter- face under the laser irradiation. We present the alternating-sign dependence of the switching wave velocity on pump intensity and discuss a possibility of controlling the polariton propagation by switching waves.

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Citation Download Citation

Boris D. Fainberg, Nikolay N. Rosanov, Nikolay A. Veretenov, and Boris Apter "Light-induced "plasmonic" properties of organic materials: surface polaritons, bistability and switching waves", Proc. SPIE 10360, Light Manipulating Organic Materials and Devices IV, 1036003 (25 August 2017); https://doi.org/10.1117/12.2272741

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