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Spontaneous Emission of Vector Vortex Beams

Abstract : Harnessing the spontaneous emission of incoherent quantum emitters is one of the hallmarks of nano-optics. Yet, an enduring challenge remains—making them emit vector beams, which are complex forms of light associated with fruitful developments in fluorescence imaging, optical trapping and high-speed telecommunications. Vector beams are characterized by spatially varying polarization states whose construction requires coherence properties that are typically possessed by lasers—but not by photons produced by spontaneous emission. Here, we show a route to weave the spontaneous emission of an ensemble of colloidal quantum dots into vector beams. To this end, we use holographic nanostructures that impart the necessary spatial coherence, polarization and topological properties to the light originating from the emitters. We focus our demonstration on vector vortex beams, which are chiral vector beams carrying non-zero orbital angular momentum, and argue that our approach can be extended to other forms of vectorial light.
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Contributor : Aloyse Degiron <>
Submitted on : Friday, January 15, 2021 - 5:01:01 PM
Last modification on : Tuesday, January 19, 2021 - 3:32:40 AM


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Domitille Schanne, Stéphan Suffit, Pascal Filloux, Emmanuel Lhuillier, Aloyse Degiron. Spontaneous Emission of Vector Vortex Beams. Physical Review Applied, American Physical Society, 2020, 14 (6), pp.064077. ⟨10.1103/PhysRevApplied.14.064077⟩. ⟨hal-03111873⟩



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