Giant effective Zeeman splitting in a monolayer semiconductor realised by spin selective strong light-matter coupling

Daniel Gillard; Thomas P. Lyons; Charly Leblanc; Jorge Puebla; Dmitry D. Solnyshkov; Lars Klompmaker; Ilya A. Akimov; Charalambos Louca; Pranaba Muduli; Armando Genco; Manfred Bayer; Yoshichika Otani; Guillaume Malpuech; Alexander Tartakovskii

doi:10.1117/12.2645637

17 March 2023 Giant effective Zeeman splitting in a monolayer semiconductor realised by spin selective strong light-matter coupling

Daniel Gillard, Thomas P. Lyons, Charly Leblanc, Jorge Puebla, Dmitry D. Solnyshkov, Lars Klompmaker, Ilya A. Akimov, Charalambos Louca, Pranaba Muduli, Armando Genco, Manfred Bayer, Yoshichika Otani, Guillaume Malpuech, Alexander Tartakovskii

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Proceedings Volume PC12423, 2D Photonic Materials and Devices VI; (2023) https://doi.org/10.1117/12.2645637
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Strong coupling between light and excitations of a two-dimensional electron gas (2DEG) are important to both pure physics and to the development of future photonic nanotechnologies. Studying the relationship between spin polarisation of a 2DEG in monolayer semiconductor MoSe2, and resultant light-matter interactions modified by a zero-dimensional optical microcavity, finds the robust spin-susceptibility of the 2DEG simultaneously enhances/supresses trion-polariton formation in opposite photon helicities. This leads to optical non-linearities arising from the highly non-linear behaviour of the valley-specific strong light-matter coupling regime and allowing all-optical tuning of the enhanced polaritonic Zeeman splitting from 4 to more than 10 meV. https://www.nature.com/articles/s41566-022-01025-8

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Daniel Gillard, Thomas P. Lyons, Charly Leblanc, Jorge Puebla, Dmitry D. Solnyshkov, Lars Klompmaker, Ilya A. Akimov, Charalambos Louca, Pranaba Muduli, Armando Genco, Manfred Bayer, Yoshichika Otani, Guillaume Malpuech, and Alexander Tartakovskii "Giant effective Zeeman splitting in a monolayer semiconductor realised by spin selective strong light-matter coupling", Proc. SPIE PC12423, 2D Photonic Materials and Devices VI, (17 March 2023); https://doi.org/10.1117/12.2645637

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KEYWORDS

Semiconductors

Zeeman effect

Nanotechnology

Nonlinear optics

Optical microcavities

Oscillators

Photonic nanostructures

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