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  Resonant laser excitation and time-domain imaging of chiral topological polariton edge states

Hofmann, D., & Sentef, M. A. (2020). Resonant laser excitation and time-domain imaging of chiral topological polariton edge states. Physical Review Research, 2(3): 033386. doi:10.1103/PhysRevResearch.2.033386.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-564B-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-FC42-4
Genre: Journal Article

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PhysRevResearch.2.033386.pdf (Publisher version), 995KB
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PhysRevResearch.2.033386.pdf
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Open Access. - Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Open access publication funded by the Max Planck Society.
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2020
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https://arxiv.org/abs/2003.13484 (Preprint)
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Hofmann, D.1, Author              
Sentef, M. A.1, 2, Author              
Affiliations:
1Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_3012828              
2Institute for Theoretical Physics, University of Bremen, ou_persistent22              

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 Abstract: We investigate the dynamics of chiral edge states in topological polariton systems under laser driving. Using a model system comprised of topolgically trivial excitons and photons with a chiral coupling proposed by Karzig et al. [Phys. Rev. X 5, 031001 (2015)], we investigate the real-time dynamics of a lattice version of this model driven by a laser pulse. By analyzing the time- and momentum-resolved spectral function, measured by time- and angle-resolved photoluminescence in analogy with time- and angle-resolved photoemission spectroscopy in electronic systems, we find that polaritonic states in a ribbon geometry are selectively excited via their resonance with the pump laser photon frequency. This selective excitation mechanism is independent of the necessity of strong laser pumping and polariton condensation. Our work highlights the potential of time-resolved spectroscopy as a complementary tool to real-space imaging for the investigation of topological edge state engineering in devices.

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Language(s): eng - English
 Dates: 2020-08-172020-03-302020-08-192020-09-102020-09
 Publication Status: Published in print
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 Rev. Type: Peer
 Identifiers: arXiv: 2003.13484
DOI: 10.1103/PhysRevResearch.2.033386
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Title: Physical Review Research
Source Genre: Journal
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Publ. Info: College Park, Maryland, United States : American Physical Society (APS)
Pages: - Volume / Issue: 2 (3) Sequence Number: 033386 Start / End Page: - Identifier: ISSN: 2643-1564
CoNE: https://pure.mpg.de/cone/journals/resource/2643-1564