<div class="csl-bib-body">
<div class="csl-entry">Rotter, S. (2023, August 16). <i>Non-Hermitian Topology in Lasers and Anti-Lasers</i> [Conference Presentation]. Non-Hermitian Topology: from Classical Optics to Quantum Matter, Dresden, Germany.</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/187921
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dc.description.abstract
n my presentation, I will first speak about the topological aspects of encircling an exceptional point (EP) in a laser and the corresponding chiral state transfer [1]. Building on the insight that EPs can also be identified in the absorption spectra of anti-lasers [2], I will present experimental results on the chiral and degenerate perfect absorption at an EP [3]. Finally, I will show how not only two modes can be critically coupled, but more than a thousand – leading to a massively degenerate coherent perfect absorber for arbitrary incoming wavefronts [4].
[1] A. Schumer, Y. G. N. Liu, J. Leshin, L. Ding, Y. Alahmadi, A. U. Hassan, H. Nasari, S. Rotter, D. N. Christodoulides, P. LiKamWa, and M. Khajavikhan, Science 375, 884 (2022)
[2] W. R. Sweeney, C. W. Hsu, S. Rotter, and A. D. Stone, Phys. Rev. Lett. 122, 093901 (2019)
[3] S. Soleymani, Q. Zhong, M. Mokim, S. Rotter, R. El-Ganainy, and S. K. Özdemir, Nature Commun. 13, 599 (2022)
[4] Y. Slobodkin, G. Weinberg, H. Hörner, K. Pichler, S. Rotter, and O. Katz, Science 377, 995 (2022)
en
dc.description.sponsorship
FWF Fonds zur Förderung der wissenschaftlichen Forschung (FWF)
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dc.language.iso
en
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dc.subject
Non-Hermitian Physics
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dc.subject
Topology
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dc.title
Non-Hermitian Topology in Lasers and Anti-Lasers
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dc.type
Presentation
en
dc.type
Vortrag
de
dc.relation.grantno
P 32300-N27
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dc.type.category
Conference Presentation
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tuw.publication.invited
invited
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tuw.project.title
Wellenkontrolle in Systemen mit Absorption und Unordnung
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tuw.researchinfrastructure
Vienna Scientific Cluster
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tuw.researchTopic.id
Q1
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tuw.researchTopic.name
Photonics
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tuw.researchTopic.value
100
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tuw.linking
https://www.pks.mpg.de/nhtop23
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tuw.linking
https://www.pks.mpg.de/nhtop23/program
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tuw.publication.orgunit
E136 - Institut für Theoretische Physik
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tuw.author.orcid
0000-0002-4123-1417
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tuw.event.name
Non-Hermitian Topology: from Classical Optics to Quantum Matter
en
tuw.event.startdate
14-08-2023
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tuw.event.enddate
18-08-2023
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Dresden
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tuw.event.country
DE
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tuw.event.institution
Max Planck Institute for the Physics of Complex Systems
