Controlling surface plasmon propagation by tilted optical beams incident on a 1D grating

Doron Bar-Lev; Itai Epstein; Ady Arie; Jacob Scheuer

doi:10.1117/12.2078097

27 February 2015 Controlling surface plasmon propagation by tilted optical beams incident on a 1D grating

Doron Bar-Lev, Itai Epstein, Ady Arie, Jacob Scheuer

Proceedings Volume 9371, Photonic and Phononic Properties of Engineered Nanostructures V; 93711A (2015) https://doi.org/10.1117/12.2078097
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

Tailoring the properties of an optical beam incident on a one dimensional metallic grating can attain a substantial control over the excited surface plasmon polariton wave. In this work we derive the complete analytical relations between the optical angles of incidence and the resulting surface plasmon propagation angle. These relations are demonstrated both numerically and experimentally. Following we show that there is an optimal grating that can excite any surface plasmon propagation angle between ±82.46 degrees and efficient polarization schemes which lead to negligible losses. Finally we introduce a formalism that relates general surface plasmon beams to corresponding incident optical beams and using it we demonstrate numerically a varying position surface plasmon hotspot generation.

Citation Download Citation

Doron Bar-Lev, Itai Epstein, Ady Arie, and Jacob Scheuer "Controlling surface plasmon propagation by tilted optical beams incident on a 1D grating", Proc. SPIE 9371, Photonic and Phononic Properties of Engineered Nanostructures V, 93711A (27 February 2015); https://doi.org/10.1117/12.2078097

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