Periodical arrays of optical nano-antennas (Critical Review Lecture)

Andrey K. Sarychev; Dentcho Angelov Genov; Alexander Wei; Vladimir M. Shalaev

doi:10.1117/12.506520

9 July 2003 Periodical arrays of optical nano-antennas (Critical Review Lecture)

Andrey K. Sarychev, Dentcho Angelov Genov, Alexander Wei, Vladimir M. Shalaev

Proceedings Volume 5218, Complex Mediums IV: Beyond Linear Isotropic Dielectrics; (2003) https://doi.org/10.1117/12.506520
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

Analytical theory and numerical calculations for periodic arrays of metal nanoparticles indicate resonant-like enhancement of local electromagnetic field, which can be tuned by varying a ratio of particle diameter to interparticle spacing. For Raman scattering, local field enhancements on the order of 10¹³ and surface-averaged field enhancements on the order of 10¹¹ can be achieved udner optimal conditions. This is several orders of magnitude greater tan that obtaiend in disordered metal-dielectric films, and suggests a new design for engineering plasmonic substrates supporting intense and spatially well-defined field patterns, with direct applications for surface-enhanced Raman scattering (SERS), and surface-enhanced optical nonlinearities.

Citation Download Citation

Andrey K. Sarychev, Dentcho Angelov Genov, Alexander Wei, and Vladimir M. Shalaev "Periodical arrays of optical nano-antennas (Critical Review Lecture)", Proc. SPIE 5218, Complex Mediums IV: Beyond Linear Isotropic Dielectrics, (9 July 2003); https://doi.org/10.1117/12.506520

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