Valley-selective directional emission enabled by a plasmonic nanoantenna

Tobias Bucher; Mostafa Abasifard; Isabelle Staude; Emad Najafidehaghani; Antony George; Andrey Turchanin; Thomas Pertsch; Jingshi Yan; Haitao Chen; Khosro Zangeneh Kamali; Mohsen Rahmani; Dragomir Neshev

doi:10.1109/PN52152.2021.9597992

Valley-selective directional emission enabled by a plasmonic nanoantenna

Tobias Bucher, Mostafa Abasifard, Isabelle Staude, Emad Najafidehaghani, Antony George, Andrey Turchanin, Thomas Pertsch, Jingshi Yan, Haitao Chen, Khosro Zangeneh Kamali, Mohsen Rahmani, Dragomir Neshev

ARC Centre of Excellence for Transformative Meta-Optical Systems

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

Abstract

We experimentally investigate the coupling of spontaneous emission from monolayer tungsten diselenide to resonant plasmonic nanoantennas at cryogenic temperatures. The low temperature conditions enable preserved chiral polarization states of the spontaneous emission with a valley-selective handedness. By back-focal plane imaging of the scattered spontaneous emission we demonstrate a valley-selective directional emission pattern.

Original language	English
Title of host publication	2021 Photonics North, PN 2021
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781665444835
DOIs	https://doi.org/10.1109/PN52152.2021.9597992
Publication status	Published - 2021
Event	2021 Photonics North, PN 2021 - Toronto, Canada Duration: 31 May 2021 → 2 Jun 2021

Publication series

Name	2021 Photonics North, PN 2021

Conference

Conference	2021 Photonics North, PN 2021
Country/Territory	Canada
City	Toronto
Period	31/05/21 → 2/06/21

Access to Document

10.1109/PN52152.2021.9597992

Cite this

Bucher, T., Abasifard, M., Staude, I., Najafidehaghani, E., George, A., Turchanin, A., Pertsch, T., Yan, J., Chen, H., Kamali, K. Z., Rahmani, M., & Neshev, D. (2021). Valley-selective directional emission enabled by a plasmonic nanoantenna. In 2021 Photonics North, PN 2021 (2021 Photonics North, PN 2021). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PN52152.2021.9597992

@inproceedings{15508946796549b698c03fbc7e001d04,

title = "Valley-selective directional emission enabled by a plasmonic nanoantenna",

abstract = "We experimentally investigate the coupling of spontaneous emission from monolayer tungsten diselenide to resonant plasmonic nanoantennas at cryogenic temperatures. The low temperature conditions enable preserved chiral polarization states of the spontaneous emission with a valley-selective handedness. By back-focal plane imaging of the scattered spontaneous emission we demonstrate a valley-selective directional emission pattern.",

keywords = "2D materials, plasmonics, valley routing",

author = "Tobias Bucher and Mostafa Abasifard and Isabelle Staude and Emad Najafidehaghani and Antony George and Andrey Turchanin and Thomas Pertsch and Jingshi Yan and Haitao Chen and Kamali, {Khosro Zangeneh} and Mohsen Rahmani and Dragomir Neshev",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 2021 Photonics North, PN 2021 ; Conference date: 31-05-2021 Through 02-06-2021",

year = "2021",

doi = "10.1109/PN52152.2021.9597992",

language = "English",

series = "2021 Photonics North, PN 2021",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2021 Photonics North, PN 2021",

address = "United States",

}

Bucher, T, Abasifard, M, Staude, I, Najafidehaghani, E, George, A, Turchanin, A, Pertsch, T, Yan, J, Chen, H, Kamali, KZ, Rahmani, M & Neshev, D 2021, Valley-selective directional emission enabled by a plasmonic nanoantenna. in 2021 Photonics North, PN 2021. 2021 Photonics North, PN 2021, Institute of Electrical and Electronics Engineers Inc., 2021 Photonics North, PN 2021, Toronto, Canada, 31/05/21. https://doi.org/10.1109/PN52152.2021.9597992

TY - GEN

T1 - Valley-selective directional emission enabled by a plasmonic nanoantenna

AU - Bucher, Tobias

AU - Abasifard, Mostafa

AU - Staude, Isabelle

AU - Najafidehaghani, Emad

AU - George, Antony

AU - Turchanin, Andrey

AU - Pertsch, Thomas

AU - Yan, Jingshi

AU - Chen, Haitao

AU - Kamali, Khosro Zangeneh

AU - Rahmani, Mohsen

AU - Neshev, Dragomir

PY - 2021

Y1 - 2021

N2 - We experimentally investigate the coupling of spontaneous emission from monolayer tungsten diselenide to resonant plasmonic nanoantennas at cryogenic temperatures. The low temperature conditions enable preserved chiral polarization states of the spontaneous emission with a valley-selective handedness. By back-focal plane imaging of the scattered spontaneous emission we demonstrate a valley-selective directional emission pattern.

AB - We experimentally investigate the coupling of spontaneous emission from monolayer tungsten diselenide to resonant plasmonic nanoantennas at cryogenic temperatures. The low temperature conditions enable preserved chiral polarization states of the spontaneous emission with a valley-selective handedness. By back-focal plane imaging of the scattered spontaneous emission we demonstrate a valley-selective directional emission pattern.

KW - 2D materials

KW - plasmonics

KW - valley routing

UR - http://www.scopus.com/inward/record.url?scp=85123301750&partnerID=8YFLogxK

U2 - 10.1109/PN52152.2021.9597992

DO - 10.1109/PN52152.2021.9597992

M3 - Conference contribution

T3 - 2021 Photonics North, PN 2021

BT - 2021 Photonics North, PN 2021

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2021 Photonics North, PN 2021

Y2 - 31 May 2021 through 2 June 2021

ER -

Valley-selective directional emission enabled by a plasmonic nanoantenna

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