Regensburg 2016 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 24: Plasmonics and Nanooptics: Fabrication, Characterization and Applications

O 24.10: Poster

Montag, 7. März 2016, 18:15–20:30, Poster E

Nonlinear holography using plasmonic metasurfaces — •Bernhard Reineke¹, Guixin Li², Shumei Chen², Franziska Zeuner¹, Nitipat Pholchai³, Polis Wing Han Wong⁴, Edwin Yue Bun Pun⁴, Kok Wai Cheah², Shuang Zhang², and Thomas Zentgraf¹ — ¹Department of Physics, University of Paderborn, Warburger Straße 100, 33098 Paderborn — ²School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, UK — ³Department of Industrial Physics and Medical Instrumentation, King Mongkuts University of Technology North Bangkok, 1518 Pibulsongkram Road, Bangkok 10800, Thailand — ⁴Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong

Recently it was shown that high-resolution holograms can be realized by using plasmonic metasurfaces. Combining nonlinear metasurfaces and holography can lead to new highly unconventional and versatile optical devices.

Here, we show a way to generate nonlinear holograms in the visible spectral range by using Second Harmonic Generation. For this purpose we fabricated a plasmonic nonlinear metasurface consisting of plasmonic nanoantennas. The desired phase for the hologram is hereby encoded in the arrangement and orientation of the antennas. By imaging the nonlinear second harmonic signal from the sample when illuminated with RCP or LCP short laser pulses we can reconstruct the image. Furthermore, we demonstrate that multiplexing of holographic images can be obtained.