Exciton polaritons in mixed-dimensional transition metal dichalcogenides heterostructures

2020 ◽  
Vol 45 (15) ◽  
pp. 4140
Author(s):  
Qing Zhang ◽  
Shaohua Dong ◽  
Guangtao Cao ◽  
Guangwei Hu
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Exciton Polaritons ◽  
Metal Dichalcogenides

Self-Hybridized Exciton-Polaritons in Multilayers of Transition Metal Dichalcogenides for Efficient Light Absorption

ACS Photonics ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 139-147 ◽  
Author(s):  
Battulga Munkhbat ◽  
Denis G. Baranov ◽  
Michael Stührenberg ◽  
Martin Wersäll ◽  
Ankit Bisht ◽  
...  
Keyword(s):  
Transition Metal ◽  
Light Absorption ◽  
Transition Metal Dichalcogenides ◽  
Exciton Polaritons ◽  
Metal Dichalcogenides

scholarly journals Experimental observation of topological Z2 exciton-polaritons in transition metal dichalcogenide monolayers

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Mengyao Li ◽  
Ivan Sinev ◽  
Fedor Benimetskiy ◽  
Tatyana Ivanova ◽  
Ekaterina Khestanova ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Transition Metal Dichalcogenide ◽  
Strong Light ◽  
Strongly Coupled ◽  
Exciton Polaritons ◽  
Valley Polarization ◽  
Topological States ◽  
Metal Dichalcogenides ◽  
Quantum Science

AbstractThe rise of quantum science and technologies motivates photonics research to seek new platforms with strong light-matter interactions to facilitate quantum behaviors at moderate light intensities. Topological polaritons (TPs) offer an ideal platform in this context, with unique properties stemming from resilient topological states of light strongly coupled with matter. Here we explore polaritonic metasurfaces based on 2D transition metal dichalcogenides (TMDs) as a promising platform for topological polaritonics. We show that the strong coupling between topological photonic modes of the metasurface and excitons in TMDs yields a topological polaritonic Z2 phase. We experimentally confirm the emergence of one-way spin-polarized edge TPs in metasurfaces integrating MoSe2 and WSe2. Combined with the valley polarization in TMD monolayers, the proposed system enables an approach to engage the photonic angular momentum and valley and spin of excitons, offering a promising platform for photonic/solid-state interfaces for valleytronics and spintronics.

scholarly journals Strong light-matter coupling in topological metasurfaces integrated with transition metal dichalcogenides

2021 ◽  
Vol 2015 (1) ◽  
pp. 012142
Author(s):  
Ivan Sinev ◽  
Mengyao Li ◽  
Fedor Benimetskiy ◽  
Tatiana Ivanova ◽  
Svetlana Kiriushechkina ◽  
...  
Keyword(s):  
Transition Metal ◽  
Topological Charge ◽  
Transition Metal Dichalcogenides ◽  
Strong Coupling Regime ◽  
Strong Light ◽  
Matter Coupling ◽  
Spin Polarized ◽  
Exciton Polaritons ◽  
Metal Dichalcogenides ◽  
Quantum Phenomena

Abstract Strong light-matter interactions enable unique nonlinear and quantum phenomena at moderate light intensities. Within the last years, polaritonic metasurfaces emerged as a viable candidate for realization of such regimes. In particular, planar photonic structures integrated with 2D excitonic materials, such as transition metal dichalcogenides (TMD), can support exciton polaritons – half-light half-matter quasiparticles. Here, we explore topological exciton polaritons which are formed in a suitably engineered all-dielectric topological photonic metasurface coupled to TMD monolayers. We experimentally demonstrate the transition of topological charge from photonic to polaritonic bands with the onset of strong coupling regime and confirm the presence of one-way spin-polarized edge topological polaritons. The proposed system constitutes a promising platform for photonic/solid-state interfaces for valleytronics and spintronics.

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