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

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

Stony Brook University

Stony Brook University
Ohio State University
Johannes Gutenberg University Mainz

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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 language	English
Title of host publication	International Conference on Ultrafast Phenomena, UP 2022
Publisher	Optica Publishing Group (formerly OSA)
ISBN (Electronic)	9781957171074
State	Published - 2022
Event	International Conference on Ultrafast Phenomena, UP 2022 - Montreal, Canada Duration: Jul 18 2022 → Jul 22 2022

Publication series

Name	Optics InfoBase Conference Papers

Conference

Conference	International Conference on Ultrafast Phenomena, UP 2022
Country/Territory	Canada
City	Montreal
Period	07/18/22 → 07/22/22

Cite this

Kunin, A., Chernov, S., Bakalis, J., Li, Z., Cheng, S., Withers, Z. H., White, M. G., Schönhense, G., Du, X., Kawakami, R. K., & Allison, T. K. (2022). Momentum-Resolved Intervalley and Intravalley Exciton Coupling in Monolayer WS₂. In International Conference on Ultrafast Phenomena, UP 2022 (Optics InfoBase Conference Papers). Optica Publishing Group (formerly OSA).

@inproceedings{4522d780e68e4d65bc2dca06b46571b8,

title = "Momentum-Resolved Intervalley and Intravalley Exciton Coupling in Monolayer WS2",

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.",

author = "Alice Kunin and Sergey Chernov and Jin Bakalis and Ziling Li and Shuyu Cheng and Withers, \{Zachary H.\} and White, \{Michael G.\} and Gerd Sch{\"o}nhense and Xu Du and Kawakami, \{Roland K.\} and Allison, \{Thomas K.\}",

note = "Publisher Copyright: {\textcopyright} 2022 The Author(s).; International Conference on Ultrafast Phenomena, UP 2022 ; Conference date: 18-07-2022 Through 22-07-2022",

year = "2022",

language = "English",

series = "Optics InfoBase Conference Papers",

publisher = "Optica Publishing Group (formerly OSA)",

booktitle = "International Conference on Ultrafast Phenomena, UP 2022",

}

Kunin, A, Chernov, S, Bakalis, J, Li, Z, Cheng, S, Withers, ZH, White, MG, Schönhense, G, Du, X, Kawakami, RK & Allison, TK 2022, Momentum-Resolved Intervalley and Intravalley Exciton Coupling in Monolayer WS₂. in International Conference on Ultrafast Phenomena, UP 2022. Optics InfoBase Conference Papers, Optica Publishing Group (formerly OSA), International Conference on Ultrafast Phenomena, UP 2022, Montreal, Canada, 07/18/22.

Momentum-Resolved Intervalley and Intravalley Exciton Coupling in Monolayer WS₂. / Kunin, Alice; Chernov, Sergey; Bakalis, Jin et al.
International Conference on Ultrafast Phenomena, UP 2022. Optica Publishing Group (formerly OSA), 2022. (Optics InfoBase Conference Papers).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Momentum-Resolved Intervalley and Intravalley Exciton Coupling in Monolayer WS2

AU - Kunin, Alice

AU - Chernov, Sergey

AU - Bakalis, Jin

AU - Li, Ziling

AU - Cheng, Shuyu

AU - Withers, Zachary H.

AU - White, Michael G.

AU - Schönhense, Gerd

AU - Du, Xu

AU - Kawakami, Roland K.

AU - Allison, Thomas K.

PY - 2022

Y1 - 2022

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/85139119133

M3 - Conference contribution

T3 - Optics InfoBase Conference Papers

BT - International Conference on Ultrafast Phenomena, UP 2022

PB - Optica Publishing Group (formerly OSA)

T2 - International Conference on Ultrafast Phenomena, UP 2022

Y2 - 18 July 2022 through 22 July 2022

ER -

Momentum-Resolved Intervalley and Intravalley Exciton Coupling in Monolayer WS₂

Abstract

Publication series

Conference

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