Momentum-Resolved Intervalley and Intravalley Exciton Coupling in Monolayer WS2

Alice Kunin, Sergey Chernov, Jin Bakalis, Ziling Li, Shuyu Cheng, Zachary H. Withers, Michael G. White, Gerd Schönhense, Xu Du, Roland K. Kawakami, Thomas K. Allison

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Using time-resolved angle-resolved photoemission spectroscopy (tr-ARPES), we image the dynamics of intervalley and intravalley excitons in monolayer WS2. We observe strong coupling between photoexcited B and A excitons and directly visualize the ultrafast valley depolarization.

Original languageEnglish (US)
Title of host publicationInternational Conference on Ultrafast Phenomena, UP 2022
PublisherOptica Publishing Group (formerly OSA)
ISBN (Electronic)9781957171074
StatePublished - 2022
Externally publishedYes
EventInternational Conference on Ultrafast Phenomena, UP 2022 - Montreal, Canada
Duration: Jul 18 2022Jul 22 2022

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Conference

ConferenceInternational Conference on Ultrafast Phenomena, UP 2022
Country/TerritoryCanada
CityMontreal
Period7/18/227/22/22

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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