Spectro-polarimetric signature of a random laser

Sebastian Knitter, Michael Kues, and Carsten Fallnich
Phys. Rev. A 88, 013839 – Published 24 July 2013

Abstract

We characterized the spectro-polarimetric emission properties of random lasers in the regime of strong scattering. The study involved the preparation of microstructured samples, which were shown to support very stable random laser modes in spectral location and intensity. We show that random lasing modes from such samples are highly polarized in statically random, but well-defined states that can be used as a unique sample identifier. Our findings reveal a strong dependency of the emission spectrum on the pump polarization and demonstrate how the spectro-polarimetric emission can be efficiently manipulated.

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  • Received 29 April 2013

DOI:https://doi.org/10.1103/PhysRevA.88.013839

©2013 American Physical Society

Authors & Affiliations

Sebastian Knitter*, Michael Kues, and Carsten Fallnich

  • Institut für Angewandte Physik, Westfälische Wilhelms-Universität, Corrensstraβe 2, 48149 Münster, Germany

  • *Corresponding author: sebastian.knitter@uni-muenster.de

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Vol. 88, Iss. 1 — July 2013

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