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Arbitrary vector beam generation in semiconductor quantum dots
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DOI：10.1103/PhysRevB.111.035419.png)
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We propose an arbitrary vector beam (VB) generation scheme in a thin disk-shaped quantum dot (QD) medium considering phonon interaction. The QD biexciton system exhibits the interplay between first- and third-order nonlinear susceptibility between two orthogonal circular polarization transitions. Three QD transitions are coupled with one applied weak and two strong control orbital angular momentum (OAM) carrying fields. Therefore, the applied field experiences absorption, and a new field with the desired OAM is generated via four-wave mixing (FWM). These two orthogonal field superpositions produce VB at the QD medium end. We also demonstrate the polarization rotation of a VB by changing only the relative control field phase. Additionally, we analyze the effect of temperature on the VB generation.
Keyword:
ORBITAL ANGULAR-MOMENTUM
POLARIZATION VORTICES
SCINTILLATION
MODES
LIGHT
GAUSS
期刊
IF:
3.7
论文数:
15.4W
被引数:
41.0W
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Neuroscience
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PREAI
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