Spin injection enhancement in CW VECSEL at room temperature using push-pull optical pumping - Archive ouverte HAL
Article Dans Une Revue Optics Letters Année : 2024

Spin injection enhancement in CW VECSEL at room temperature using push-pull optical pumping

Résumé

We report the enhancement of spin injection efficiency in an external -cavity VCSEL based on a non -resonant pumping coupled with a polarized optical resonant illumination. This double pumping scheme allows both the injection of spin polarized electrons in the conduction band and the selection of the spin orientation for the electron/hole recombination laser process. Experimentally, a flip of the polarization state of the laser is achieved with an ellipticity of +31 degrees (spin down) and -33 degrees (spin up), so an increase of about 50% of the ellipticity is achieved in comparison to an optical non -resonant pumping alone. (c) 2024 Optica Publishing Group
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Dates et versions

hal-04651470 , version 1 (17-07-2024)

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Alexandre Joly, Ghaya Baili, Jean-Marie George, Isabelle Sagnes, Daniel Dolfi, et al.. Spin injection enhancement in CW VECSEL at room temperature using push-pull optical pumping. Optics Letters, 2024, 49 (11), pp.3010-3013. ⟨10.1364/OL.522095⟩. ⟨hal-04651470⟩
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