Intersubband polaritons in a one-dimensional surface plasmon photonic crystal

Zanotto, Simone and Biasiol, Giorgio and Degl'Innocenti, Riccardo and Sorba, Lucia and Tredicucci, Alessandro (2010) Intersubband polaritons in a one-dimensional surface plasmon photonic crystal. Applied Physics Letters, 97 (23). ISSN 0003-6951

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In this work we demonstrate the achievement of light-matter strong coupling regime between an intersubband transition and the photonic bandlike mode supported by a metallic grating. Polaritonic resonances have been identified in the reflectivity spectra at 10° incidence, with a clear anticrossing appearing when the photonic mode is tuned across the transition line. Experimental results are in good agreement with the simulations performed with a scattering-matrix approach. This cavity design can be further optimized and is likely to open the way to a new class of time-resolved measurements, as it allows pump-and-probe measurements to be performed in collinear geometries.

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Journal Article
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Applied Physics Letters
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08 Jan 2018 14:30
Last Modified:
20 Sep 2023 01:07