Photonic jets (PJs) obtained by illuminating a dielectric microsphere have recently shown to provide an efficient and cost-effective means of laser-writing and localizing single-photon emitters with sub-diffraction precision. The fabrication technique relies on the photoinduced formation of GaAsN quantum dots (QDs) that are self-aligned to the microsphere, which in turn enhances the collection efficiency of their emission. Similarly, the angular magnification introduced by a microsphere placed on top of two close emitters allows to detect and resolve their separation below the diffraction limit by analyzing their angular emission pattern in momentum space. Along with a brief review of the two methods, a systematic numerical study on the formation and properties of PJs to streamline the optimization of the fabrication process is presented.

Photonic Jets and Single‐Photon Emitters / Ristori, Andrea; Felici, Marco; Pettinari, Giorgio; Pattelli, Lorenzo; Biccari, Francesco. - In: ADVANCED PHOTONICS RESEARCH. - ISSN 2699-9293. - 3:11(2022), p. 2100365. [10.1002/adpr.202100365]

Photonic Jets and Single‐Photon Emitters

Pattelli, Lorenzo;
2022

Abstract

Photonic jets (PJs) obtained by illuminating a dielectric microsphere have recently shown to provide an efficient and cost-effective means of laser-writing and localizing single-photon emitters with sub-diffraction precision. The fabrication technique relies on the photoinduced formation of GaAsN quantum dots (QDs) that are self-aligned to the microsphere, which in turn enhances the collection efficiency of their emission. Similarly, the angular magnification introduced by a microsphere placed on top of two close emitters allows to detect and resolve their separation below the diffraction limit by analyzing their angular emission pattern in momentum space. Along with a brief review of the two methods, a systematic numerical study on the formation and properties of PJs to streamline the optimization of the fabrication process is presented.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11696/75299
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