Ultrathin WS2-on-Glass Photonic Crystal for Self-Resonant Exciton-Polaritonics

Xingwang Zhang; Xiaojie Zhang; Wenzhuo Huang; Kedi Wu; Mengqiang Zhao; A. T. Charlie Johnson; Sefaattin Tongay; Ertugrul Cubukcu

doi:10.1002/adom.201901988

Ultrathin WS₂-on-Glass Photonic Crystal for Self-Resonant Exciton-Polaritonics

Xingwang Zhang, Xiaojie Zhang, Wenzhuo Huang, Kedi Wu, Mengqiang Zhao, A. T. Charlie Johnson, Sefaattin Tongay, Ertugrul Cubukcu

Engineering, Ira A. Fulton Schools of (IAFSE)

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

17 Scopus citations

Abstract

Room temperature stable excitons in layered two-dimensional (2D) transition metal dichalcogenides (TMDs) offer a unique route for engineering light and matter interactions. Due to the strong optical dispersion near the excitonic transitions, a high refractive index arises in these ultrathin semiconductors.^[1,2] Utilizing this behavior, strongly confined Fano type optical resonances in an ultrathin (i.e., ≈12 nm) tungsten disulfide (WS₂) photonic crystal (PhC) directly fabricated on a TMD-on-glass platform are reported. In this approach, Fano-type WS₂ photonic resonances strongly couple to the WS₂ excitonic dispersion engender self-resonant exciton-polaritons with an out-of-plane optical confinement exceeding that provided by surface plasmon polaritons in the visible. The large spatial light-matter overlap endowed by this unique monolithic self-coupling scheme is utilized for steering of enhanced 2D WSe₂ excitonic photoluminescence in a truly TMD integrated system. It is envisioned that the strong light matter interaction on the TMD-on-glass platform will unfold the prospects of ultrathin exciton-polaritonic resonators.

Original language	English (US)
Article number	1901988
Journal	Advanced Optical Materials
Volume	8
Issue number	7
DOIs	https://doi.org/10.1002/adom.201901988
State	Published - Apr 1 2020

Keywords

2D materials
TMD on glass
WS
exciton-polaritons
photonic crystals

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics

Access to Document

10.1002/adom.201901988

Cite this

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title = "Ultrathin WS2-on-Glass Photonic Crystal for Self-Resonant Exciton-Polaritonics",

abstract = "Room temperature stable excitons in layered two-dimensional (2D) transition metal dichalcogenides (TMDs) offer a unique route for engineering light and matter interactions. Due to the strong optical dispersion near the excitonic transitions, a high refractive index arises in these ultrathin semiconductors.[1,2] Utilizing this behavior, strongly confined Fano type optical resonances in an ultrathin (i.e., ≈12 nm) tungsten disulfide (WS2) photonic crystal (PhC) directly fabricated on a TMD-on-glass platform are reported. In this approach, Fano-type WS2 photonic resonances strongly couple to the WS2 excitonic dispersion engender self-resonant exciton-polaritons with an out-of-plane optical confinement exceeding that provided by surface plasmon polaritons in the visible. The large spatial light-matter overlap endowed by this unique monolithic self-coupling scheme is utilized for steering of enhanced 2D WSe2 excitonic photoluminescence in a truly TMD integrated system. It is envisioned that the strong light matter interaction on the TMD-on-glass platform will unfold the prospects of ultrathin exciton-polaritonic resonators.",

keywords = "2D materials, TMD on glass, WS, exciton-polaritons, photonic crystals",

author = "Xingwang Zhang and Xiaojie Zhang and Wenzhuo Huang and Kedi Wu and Mengqiang Zhao and {Charlie Johnson}, {A. T.} and Sefaattin Tongay and Ertugrul Cubukcu",

note = "Funding Information: This work was supported by NSF under the NSF 2‐DARE Program (EFMA‐1542879) and partially under ECCS‐1632797. Publisher Copyright: {\textcopyright} 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2020",

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doi = "10.1002/adom.201901988",

language = "English (US)",

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T1 - Ultrathin WS2-on-Glass Photonic Crystal for Self-Resonant Exciton-Polaritonics

AU - Zhang, Xingwang

AU - Zhang, Xiaojie

AU - Huang, Wenzhuo

AU - Wu, Kedi

AU - Zhao, Mengqiang

AU - Charlie Johnson, A. T.

AU - Tongay, Sefaattin

AU - Cubukcu, Ertugrul

N1 - Funding Information: This work was supported by NSF under the NSF 2‐DARE Program (EFMA‐1542879) and partially under ECCS‐1632797. Publisher Copyright: © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2020/4/1

Y1 - 2020/4/1

N2 - Room temperature stable excitons in layered two-dimensional (2D) transition metal dichalcogenides (TMDs) offer a unique route for engineering light and matter interactions. Due to the strong optical dispersion near the excitonic transitions, a high refractive index arises in these ultrathin semiconductors.[1,2] Utilizing this behavior, strongly confined Fano type optical resonances in an ultrathin (i.e., ≈12 nm) tungsten disulfide (WS2) photonic crystal (PhC) directly fabricated on a TMD-on-glass platform are reported. In this approach, Fano-type WS2 photonic resonances strongly couple to the WS2 excitonic dispersion engender self-resonant exciton-polaritons with an out-of-plane optical confinement exceeding that provided by surface plasmon polaritons in the visible. The large spatial light-matter overlap endowed by this unique monolithic self-coupling scheme is utilized for steering of enhanced 2D WSe2 excitonic photoluminescence in a truly TMD integrated system. It is envisioned that the strong light matter interaction on the TMD-on-glass platform will unfold the prospects of ultrathin exciton-polaritonic resonators.

AB - Room temperature stable excitons in layered two-dimensional (2D) transition metal dichalcogenides (TMDs) offer a unique route for engineering light and matter interactions. Due to the strong optical dispersion near the excitonic transitions, a high refractive index arises in these ultrathin semiconductors.[1,2] Utilizing this behavior, strongly confined Fano type optical resonances in an ultrathin (i.e., ≈12 nm) tungsten disulfide (WS2) photonic crystal (PhC) directly fabricated on a TMD-on-glass platform are reported. In this approach, Fano-type WS2 photonic resonances strongly couple to the WS2 excitonic dispersion engender self-resonant exciton-polaritons with an out-of-plane optical confinement exceeding that provided by surface plasmon polaritons in the visible. The large spatial light-matter overlap endowed by this unique monolithic self-coupling scheme is utilized for steering of enhanced 2D WSe2 excitonic photoluminescence in a truly TMD integrated system. It is envisioned that the strong light matter interaction on the TMD-on-glass platform will unfold the prospects of ultrathin exciton-polaritonic resonators.

KW - 2D materials

KW - TMD on glass

KW - WS

KW - exciton-polaritons

KW - photonic crystals

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