Strong light-matter interaction in tungsten disulfide nanotubes

Lena Yadgarov, Bojana Višić, Tsafrir Abir, Ron Tenne, Alexander Yu Polyakov, Roi Levi, Tatyana V. Dolgova, Varvara V. Zubyuk, Andrey A. Fedyanin, Eugene A. Goodilin, Tal Ellenbogen, Reshef Tenne, Dan Oron

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Transition metal dichalcogenide materials have recently been shown to exhibit a variety of intriguing optical and electronic phenomena. Focusing on the optical properties of semiconducting WS2 nanotubes, we show here that these nanostructures exhibit strong light-matter interaction and form exciton-polaritons. Namely, these nanotubes act as quasi 1-D polaritonic nano-systems and sustain both excitonic features and cavity modes in the visible-near infrared range. This ability to confine light to subwavelength dimensions under ambient conditions is induced by the high refractive index of tungsten disulfide. Using "finite-difference time-domain" (FDTD) simulations we investigate the interactions between the excitons and the cavity mode and their effect on the extinction spectrum of these nanostructures. The results of FDTD simulations agree well with the experimental findings as well as with a phenomenological coupled oscillator model which suggests a high Rabi splitting of ∼280 meV. These findings open up possibilities for developing new concepts in nanotube-based photonic devices.

Original languageEnglish
Pages (from-to)20812-20820
Number of pages9
JournalPhysical Chemistry Chemical Physics
Volume20
Issue number32
DOIs
Publication statusPublished - Jan 1 2018

Fingerprint

Tungsten
disulfides
Disulfides
Nanotubes
nanotubes
tungsten
Nanostructures
excitons
Photonic devices
cavities
interactions
polaritons
Transition metals
Refractive index
extinction
Optical properties
simulation
transition metals
oscillators
photonics

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Yadgarov, L., Višić, B., Abir, T., Tenne, R., Polyakov, A. Y., Levi, R., ... Oron, D. (2018). Strong light-matter interaction in tungsten disulfide nanotubes. Physical Chemistry Chemical Physics, 20(32), 20812-20820. https://doi.org/10.1039/c8cp02245c

Strong light-matter interaction in tungsten disulfide nanotubes. / Yadgarov, Lena; Višić, Bojana; Abir, Tsafrir; Tenne, Ron; Polyakov, Alexander Yu; Levi, Roi; Dolgova, Tatyana V.; Zubyuk, Varvara V.; Fedyanin, Andrey A.; Goodilin, Eugene A.; Ellenbogen, Tal; Tenne, Reshef; Oron, Dan.

In: Physical Chemistry Chemical Physics, Vol. 20, No. 32, 01.01.2018, p. 20812-20820.

Research output: Contribution to journalArticle

Yadgarov, L, Višić, B, Abir, T, Tenne, R, Polyakov, AY, Levi, R, Dolgova, TV, Zubyuk, VV, Fedyanin, AA, Goodilin, EA, Ellenbogen, T, Tenne, R & Oron, D 2018, 'Strong light-matter interaction in tungsten disulfide nanotubes', Physical Chemistry Chemical Physics, vol. 20, no. 32, pp. 20812-20820. https://doi.org/10.1039/c8cp02245c
Yadgarov L, Višić B, Abir T, Tenne R, Polyakov AY, Levi R et al. Strong light-matter interaction in tungsten disulfide nanotubes. Physical Chemistry Chemical Physics. 2018 Jan 1;20(32):20812-20820. https://doi.org/10.1039/c8cp02245c
Yadgarov, Lena ; Višić, Bojana ; Abir, Tsafrir ; Tenne, Ron ; Polyakov, Alexander Yu ; Levi, Roi ; Dolgova, Tatyana V. ; Zubyuk, Varvara V. ; Fedyanin, Andrey A. ; Goodilin, Eugene A. ; Ellenbogen, Tal ; Tenne, Reshef ; Oron, Dan. / Strong light-matter interaction in tungsten disulfide nanotubes. In: Physical Chemistry Chemical Physics. 2018 ; Vol. 20, No. 32. pp. 20812-20820.
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