Dynamical control of the emission of a square microlaser via symmetry classes
| Autor: | Clément Lafargue, Melanie Lebental, Barbara Dietz, A. Loirette-Pelous, Stefan Bittner, Christian Ulysse, Joseph Zyss, I. Gozhyk |
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| Rok vydání: | 2018 |
| Předmět: |
Physics
Extinction ratio business.industry Astrophysics::High Energy Astrophysical Phenomena Degenerate energy levels Astrophysics::Cosmology and Extragalactic Astrophysics Polarization (waves) 7. Clean energy 01 natural sciences Computational physics 010309 optics Superposition principle Optics 0103 physical sciences Dynamical control Photonics 010306 general physics business Astrophysics::Galaxy Astrophysics |
| Zdroj: | Physical Review A. 97 |
| ISSN: | 2469-9934 2469-9926 |
| DOI: | 10.1103/physreva.97.043826 |
| Popis: | A major objective in photonics is to tailor the emission properties of microcavities which is usually achieved with specific cavity shapes. Yet the dynamical change of the emission properties during operation would often be advantageous. The implementation of such a method is still a challenging issue. We present an effective procedure for the dynamical control of the emission lobes which relies on the selection of a specific coherent superposition of degenerate modes belonging to different symmetry classes. It is generally applicable to systems exhibiting pairs of degenerate modes. We explored it experimentally and analytically with organic square microlasers, which emit narrow lobes parallel to their sidewalls. By means of the pump polarization, emission lobes are switched on and off selectively with an extinction ratio better than $1/50$. |
| Databáze: | OpenAIRE |
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