Active mid-infrared plasmonic beam steering devices

D. C. Adams; T. Ribaudo; S. Thongrattanasiri; E. A. Shaner; V. A. Podolskiy; D. Wasserman

doi:10.1117/12.859285

10 September 2010 Active mid-infrared plasmonic beam steering devices

D. C. Adams, T. Ribaudo, S. Thongrattanasiri, E. A. Shaner, V. A. Podolskiy, D. Wasserman

Proceedings Volume 7756, Active Photonic Materials III; 775616 (2010) https://doi.org/10.1117/12.859285
Event: SPIE NanoScience + Engineering, 2010, San Diego, California, United States

Abstract

We demonstrate the steering of coherent mid-infrared radiation through plasmonic structures consisting of a single sub-wavelength slit flanked by a periodic array of grooves, fabricated on GaAs substrates. We demonstrate control of steering angle by tuning the incident radiation, and study beam quality for the transmitted light. In addition, we demonstrate that small shifts in the refractive index of the GaAs substrate can actively control the steering angle of the transmitted light, opening a path towards the development of no-moving-parts plasmonic beam steering devices.

Citation Download Citation

D. C. Adams, T. Ribaudo, S. Thongrattanasiri, E. A. Shaner, V. A. Podolskiy, and D. Wasserman "Active mid-infrared plasmonic beam steering devices", Proc. SPIE 7756, Active Photonic Materials III, 775616 (10 September 2010); https://doi.org/10.1117/12.859285

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