The upper branch broadening in ultrastrongly coupled THz landau polaritons

Shima Rajabali, Giacomo Scalari, Janine Keller, Mattias Beck, Jerome Faist

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

2 Citations (Scopus)

Abstract

We present our investigation on ultrastrong coupling of the Landau level transitions in a two dimensional electron gas to complementary split ring resonator arrays, as a terahertz metasurface. To achieve a higher coupling rate, the capacitive gap of the resonator is reduced systematically. This increment in the coupling rate is expected due to the enhanced vacuum field fluctuations in a smaller volume mode. However, our results indicate that the gap size reduction introduces a broadening in the upper polariton branch below a certain gap width.

Original languageEnglish
Title of host publicationIRMMW-THz 2019 - 44th International Conference on Infrared, Millimeter, and Terahertz Waves
PublisherIEEE
ISBN (Electronic)9781538682852
DOIs
Publication statusPublished - 2019
Externally publishedYes
Event44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019 - Paris, France
Duration: 1 Sept 20196 Sept 2019

Publication series

NameInternational Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Volume2019-September
ISSN (Print)2162-2027
ISSN (Electronic)2162-2035

Conference

Conference44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019
Country/TerritoryFrance
CityParis
Period1/09/196/09/19

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