| Autor: |
Joly A, Baili G, George JM, Sagnes I, Dolfi D, Alouini M |
| Jazyk: |
angličtina |
| Zdroj: |
Optics letters [Opt Lett] 2024 Jun 01; Vol. 49 (11), pp. 3010-3013. |
| DOI: |
10.1364/OL.522095 |
| Abstrakt: |
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° (spin down) and -33° (spin up), so an increase of about 50% of the ellipticity is achieved in comparison to an optical non-resonant pumping alone. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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