Optical gain medium for plasmonic devices

V. A. G. Rivera; Y. Ledemi; S. P. A. Osorio; F. A. Ferri; Y. Messaddeq; L. A. O. Nunes; E. Marega Jr.

doi:10.1117/12.2004596

11 March 2013 Optical gain medium for plasmonic devices

V. A. G. Rivera, Y. Ledemi, S. P. A. Osorio, F. A. Ferri, Y. Messaddeq, L. A. O. Nunes, E. Marega Jr.

Proceedings Volume 8621, Optical Components and Materials X; 86211J (2013) https://doi.org/10.1117/12.2004596
Event: SPIE OPTO, 2013, San Francisco, California, United States

Abstract

Metallic nanostructures upon resonant excitation can enhance the local electric field, which could be increased, if these nanostructures are embedded in a gain medium. In this sense, we propose a gain medium as a candidate for the development of nanowaveguide amplifier based on Er³⁺-doped tellurite glass with embedded silver nanoparticles (NPs). Those glasses are characteristic for their amplifying response in the telecommunication window, and when we embedded metallic NPs modified the crystalline potential surrounding to the Er³⁺ ions, due to an electric coupling between NP (received/emitter) and Er³⁺ ion (emitter) enhancement luminescence intensity from the ⁴I_13/2→⁴I_15/2 transition radiative of the Er³⁺ ions. Besides, the presence these NPs changes the refraction index these glass modifying the complex parameter β(n_eff) increasing the polarizability of the samples f(Ɛ_d). Therefore, a gain medium – Er³⁺ ions (amplification function in the telecommunication band) with silver NPs (luminescence enhancement) – can increment the propagation length of light into nanowaveguide.

Citation Download Citation

V. A. G. Rivera, Y. Ledemi, S. P. A. Osorio, F. A. Ferri, Y. Messaddeq, L. A. O. Nunes, and E. Marega Jr. "Optical gain medium for plasmonic devices", Proc. SPIE 8621, Optical Components and Materials X, 86211J (11 March 2013); https://doi.org/10.1117/12.2004596

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