Guideless optical sensing using space-time surface plasmon polaritons

Kenneth L. Schepler; Murat Yessenov; Yertay Zhiyenbayev; Ayman F. Abouraddy

doi:10.1117/12.2588229

12 April 2021 Guideless optical sensing using space-time surface plasmon polaritons

Kenneth L. Schepler, Murat Yessenov, Yertay Zhiyenbayev, Ayman F. Abouraddy

Proceedings Volume 11739, Fiber Optic Sensors and Applications XVII; 1173904 (2021) https://doi.org/10.1117/12.2588229
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

Abstract

Surface plasmon polaritons have been employed in a wide spectrum of sensing applications. However, as a surface plasmon polariton propagates along the surface of a metal-dielectric interface it rapidly diffracts and is absorbed reducing the sensitivity of a measurement. Attempts to prevent diffraction have included waveguides of many types but these require precise fabrication to mitigate dissipative losses. We propose using space-time surface plasmon polaritons for sensing. Our calculations show that proper selection of spatial frequency and temporal frequency correlations will produce a wave packet that propagates without diffraction or dispersion. This is possible without any waveguides or surface patterning.

Conference Presentation

Citation Download Citation

Kenneth L. Schepler, Murat Yessenov, Yertay Zhiyenbayev, and Ayman F. Abouraddy "Guideless optical sensing using space-time surface plasmon polaritons", Proc. SPIE 11739, Fiber Optic Sensors and Applications XVII, 1173904 (12 April 2021); https://doi.org/10.1117/12.2588229

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