Related papers: Mode structure reconstruction by detected and undetected light

Mode structure reconstruction by detected and undetected light

URL: http://arxiv.org/abs/2212.13873v1
Date: Wed, 28 Dec 2022 15:46:45 GMT
Title: Mode structure reconstruction by detected and undetected light
Authors: Laura T. Knoll, Giulia Petrini, Fabrizio Piacentini, Paolo Traina, Sergey V. Polyakov, Ekaterina Moreva, Ivo Pietro Degiovanni, Marco Genovese
Abstract summary: We introduce a novel technique for the reconstruction of multimode optical fields. We experimentally demonstrate that this method yields mode reconstructions with higher fidelity with respect to those obtained with reconstruction methods based only on $g(K)$'s. The reliability and versatility of our technique make it suitable for a widespread use in real applications of optical quantum measurement.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: We introduce a novel technique for the reconstruction of multimode optical fields, based on simultaneously exploiting both the generalized Glauber's $K^{th}$-order correlation function $g^{(K)}$ and a recently proposed anti-correlation function (dubbed $\theta^{(K)}$) which is resilient to Poissonian noise. We experimentally demonstrate that this method yields mode reconstructions with higher fidelity with respect to those obtained with reconstruction methods based only on $g^{(K)}$'s, even requiring less "a priori" information. The reliability and versatility of our technique make it suitable for a widespread use in real applications of optical quantum measurement, from quantum information to quantum metrology, especially when one needs to characterize ensembles of single-photon emitters in the presence of background noise (due, for example, to residual excitation laser, stray light, or unwanted fluorescence).

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