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arXiv · 2501.05833

Pump-driven opto-magnetic properties in semiconducting transition-metal dichalcogenides: an analytical model

Habib Rostami·Federico Cilento·Emmanuele Cappelluti
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Abstract

Single-layer transition-metal dichalcogenides provide an unique intrinsic entanglement between the spin/valley/orbital degrees of freedom and the polarization of scattered photons. This scenario gives rise to the well-assessed optical dichroism observed by using both steady and time-resolved probes. In this paper we provide a compact analytical modelling of the onset of a finite Faraday/Kerr optical rotation upon shining with a circularly polarized light. We identify different optical features displaying optical rotation at different characteristic energies, and we describe in an analytical framework the time-dependence of their intensities as a consequence of the main spin-conserving and spin-flip processes.

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Habib Rostami, Federico Cilento, Emmanuele Cappelluti. 2025-01-10. Pump-driven opto-magnetic properties in semiconducting transition-metal dichalcogenides: an analytical model. https://doi.org/10.3390/nano14080707

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