Infrared magneto-polaritons in MoTe$_2$ mono- and bilayers
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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866917729518223360 |
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| author | Han, Bo Fitzgerald, Jamie M. Lackner, Lukas Rosati, Roberto Esmann, Martin Eilenberger, Falk Taniguchi, Takashi Watanabe, Kenji Syperek, Marcin Malic, Ermin Schneider, Christian |
| author_facet | Han, Bo Fitzgerald, Jamie M. Lackner, Lukas Rosati, Roberto Esmann, Martin Eilenberger, Falk Taniguchi, Takashi Watanabe, Kenji Syperek, Marcin Malic, Ermin Schneider, Christian |
| contents | MoTe$_2$ monolayers and bilayers are unique within the family of van-der-Waals materials since they pave the way towards atomically thin infrared light-matter quantum interfaces, potentially reaching the important telecommunication windows. Here, we report emergent exciton-polaritons based on MoTe$_2$ monolayer and bilayer in a low-temperature open micro-cavity in a joint experiment-theory study. Our experiments clearly evidence both the enhanced oscillator strength and enhanced luminescence of MoTe$_2$ bilayers, signified by a 38 \% increase of the Rabi-splitting and a strongly enhanced relaxation of polaritons to low-energy states. The latter is distinct from polaritons in MoTe$_2$ monolayers, which feature a bottleneck-like relaxation inhibition. Both the polaritonic spin-valley locking in monolayers and the spin-layer locking in bilayers are revealed via the Zeeman effect, which we map and control via the light-matter composition of our polaritonic resonances. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_14902 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Infrared magneto-polaritons in MoTe$_2$ mono- and bilayers Han, Bo Fitzgerald, Jamie M. Lackner, Lukas Rosati, Roberto Esmann, Martin Eilenberger, Falk Taniguchi, Takashi Watanabe, Kenji Syperek, Marcin Malic, Ermin Schneider, Christian Mesoscale and Nanoscale Physics MoTe$_2$ monolayers and bilayers are unique within the family of van-der-Waals materials since they pave the way towards atomically thin infrared light-matter quantum interfaces, potentially reaching the important telecommunication windows. Here, we report emergent exciton-polaritons based on MoTe$_2$ monolayer and bilayer in a low-temperature open micro-cavity in a joint experiment-theory study. Our experiments clearly evidence both the enhanced oscillator strength and enhanced luminescence of MoTe$_2$ bilayers, signified by a 38 \% increase of the Rabi-splitting and a strongly enhanced relaxation of polaritons to low-energy states. The latter is distinct from polaritons in MoTe$_2$ monolayers, which feature a bottleneck-like relaxation inhibition. Both the polaritonic spin-valley locking in monolayers and the spin-layer locking in bilayers are revealed via the Zeeman effect, which we map and control via the light-matter composition of our polaritonic resonances. |
| title | Infrared magneto-polaritons in MoTe$_2$ mono- and bilayers |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2407.14902 |