Room Temperature Chiral Coupling of Valley Excitons with Spin-Momentum Locked Surface Plasmons

Thibault Chervy; Stefano Azzini; Etienne Lorchat; Shaojun Wang; Yuri Gorodetski; James A. Hutchison; Stéphane Berciaud; Thomas W. Ebbesen; Cyriaque Genet

doi:10.1021/acsphotonics.7b01032

Room Temperature Chiral Coupling of Valley Excitons with Spin-Momentum Locked Surface Plasmons

Thibault Chervy, Stefano Azzini, Etienne Lorchat, Shaojun Wang, Yuri Gorodetski, James A. Hutchison, Stéphane Berciaud, Thomas W. Ebbesen, Cyriaque Genet

Department of Mechanical Engineering and Mechatronics

Ariel University

Research output: Contribution to journal › Article › peer-review

Abstract

We demonstrate room temperature chiral coupling of valley excitons in a transition metal dichalcogenide monolayer with spin-momentum locked surface plasmons. At the onset of the strong coupling regime, we measure spin-selective excitation of directional flows of polaritons. Operating under such conditions, our platform yields surprisingly robust intervalley contrasts (ca. 40%) and coherence (ca. 5-8%) as opposed to their total absence for the uncoupled valley excitons at room temperature. These results open rich possibilities, easy to implement, in the context of chiral optical networks.

Original language	English
Pages (from-to)	1281-1287
Number of pages	7
Journal	ACS Photonics
Volume	5
Issue number	4
DOIs	https://doi.org/10.1021/acsphotonics.7b01032
State	Published - 18 Apr 2018

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Biotechnology
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1021/acsphotonics.7b01032

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title = "Room Temperature Chiral Coupling of Valley Excitons with Spin-Momentum Locked Surface Plasmons",

abstract = "We demonstrate room temperature chiral coupling of valley excitons in a transition metal dichalcogenide monolayer with spin-momentum locked surface plasmons. At the onset of the strong coupling regime, we measure spin-selective excitation of directional flows of polaritons. Operating under such conditions, our platform yields surprisingly robust intervalley contrasts (ca. 40%) and coherence (ca. 5-8%) as opposed to their total absence for the uncoupled valley excitons at room temperature. These results open rich possibilities, easy to implement, in the context of chiral optical networks.",

author = "Thibault Chervy and Stefano Azzini and Etienne Lorchat and Shaojun Wang and Yuri Gorodetski and Hutchison, {James A.} and St{\'e}phane Berciaud and Ebbesen, {Thomas W.} and Cyriaque Genet",

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doi = "10.1021/acsphotonics.7b01032",

language = "الإنجليزيّة",

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TY - JOUR

T1 - Room Temperature Chiral Coupling of Valley Excitons with Spin-Momentum Locked Surface Plasmons

AU - Chervy, Thibault

AU - Azzini, Stefano

AU - Lorchat, Etienne

AU - Wang, Shaojun

AU - Gorodetski, Yuri

AU - Hutchison, James A.

AU - Berciaud, Stéphane

AU - Ebbesen, Thomas W.

AU - Genet, Cyriaque

PY - 2018/4/18

Y1 - 2018/4/18

N2 - We demonstrate room temperature chiral coupling of valley excitons in a transition metal dichalcogenide monolayer with spin-momentum locked surface plasmons. At the onset of the strong coupling regime, we measure spin-selective excitation of directional flows of polaritons. Operating under such conditions, our platform yields surprisingly robust intervalley contrasts (ca. 40%) and coherence (ca. 5-8%) as opposed to their total absence for the uncoupled valley excitons at room temperature. These results open rich possibilities, easy to implement, in the context of chiral optical networks.

AB - We demonstrate room temperature chiral coupling of valley excitons in a transition metal dichalcogenide monolayer with spin-momentum locked surface plasmons. At the onset of the strong coupling regime, we measure spin-selective excitation of directional flows of polaritons. Operating under such conditions, our platform yields surprisingly robust intervalley contrasts (ca. 40%) and coherence (ca. 5-8%) as opposed to their total absence for the uncoupled valley excitons at room temperature. These results open rich possibilities, easy to implement, in the context of chiral optical networks.

UR - http://www.scopus.com/inward/record.url?scp=85045552223&partnerID=8YFLogxK

U2 - 10.1021/acsphotonics.7b01032

DO - 10.1021/acsphotonics.7b01032

M3 - مقالة

SN - 2378-0967

VL - 5

SP - 1281

EP - 1287

JO - ACS Photonics

JF - ACS Photonics

IS - 4

ER -

Room Temperature Chiral Coupling of Valley Excitons with Spin-Momentum Locked Surface Plasmons

Abstract

All Science Journal Classification (ASJC) codes

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