Design and analysis of subwavelength plasmonic waveguide array

Venus Dillu; Shruti Singh; Ravindra Kumar Sinha

doi:10.1117/12.892906

20 September 2011 Design and analysis of subwavelength plasmonic waveguide array

Venus Dillu, Shruti Singh, Ravindra Kumar Sinha

Proceedings Volume 8096, Plasmonics: Metallic Nanostructures and Their Optical Properties IX; 80962F (2011) https://doi.org/10.1117/12.892906
Event: SPIE NanoScience + Engineering, 2011, San Diego, California, United States

Abstract

We examine the propagation of plasmonic TM (Transverse Modes) modes generated in the designed periodic array of silver (Ag) embedded on silicon (Si) substrate. The properties of surface plasmons are tailored by altering the size of Ag nanorods and its periodicity. Conventional waveguides cannot guide electromagnetic energy below the diffraction limit of light, which can be overcome by texturing the metal or dielectric surface. In this hybrid design we have textured the interface by placing metallic, Ag nanorods on Si substrate placed over bilayer system of glasses. This provides the missing momentum required, since SPP modes always lay beyond the light line and has shown strong confinement of light. Ag nanorods are structured at nano dimensions to control and manipulate surface plasmon polariton (SPP) propagation and thus open new possibilities in light matter interaction.

Citation Download Citation

Venus Dillu, Shruti Singh, and Ravindra Kumar Sinha "Design and analysis of subwavelength plasmonic waveguide array", Proc. SPIE 8096, Plasmonics: Metallic Nanostructures and Their Optical Properties IX, 80962F (20 September 2011); https://doi.org/10.1117/12.892906

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