Photonics Research, 2018, 6 (6): 06000653, Published Online: Jul. 2, 2018  

Spatially resolved measurement of plasmon dispersion using Fourier-plane spectral imaging

Author Affiliations
1 School of Physics, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
2 Center for Light-Matter Interaction, Tel Aviv University, Tel Aviv 69978, Israel
3 School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
Abstract
We show that Fourier-plane imaging in conjunction with the Kretschmann–Raether configuration can be used for measuring polariton dispersion with spatial discrimination of the sample, over the whole visible spectral range. We demonstrate the functionality of our design on several architectures, including plasmonic waveguides, and show that our new design enables the measurement of plasmonic dispersion curves of spatially inhomogeneous structures with features as small as 3 μm, in a single shot.

Amir Ohad, Katherine Akulov, Eran Granot, Uri Rossman, Fernando Patolsky, Tal Schwartz. Spatially resolved measurement of plasmon dispersion using Fourier-plane spectral imaging[J]. Photonics Research, 2018, 6(6): 06000653.

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