Grating lobes in higher-order correlation functions of arrays of quantum emitters: Directional photon bunching versus correlated directions

Liberal, I; Ederra, I; Ziolkowski, RW

Grating lobes in higher-order correlation functions of arrays of quantum emitters: Directional photon bunching versus correlated directions

Liberal, I

Ederra, I

Ziolkowski, RW

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Publication Type:: Journal Article
Citation:: Photonics, 2019, 6 (1)
Issue Date:: 2019-01-01

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Field	Value	Language
dc.contributor.author	Liberal, I https://orcid.org/0000-0003-2620-6392	en_US
dc.contributor.author	Ederra, I https://orcid.org/0000-0002-0497-1627	en_US
dc.contributor.author	Ziolkowski, RW https://orcid.org/0000-0003-4256-6902	en_US
dc.date.issued	2019-01-01	en_US
dc.identifier.citation	Photonics, 2019, 6 (1)	en_US
dc.identifier.uri	http://hdl.handle.net/10453/132925
dc.description.abstract	© 2019 by the authors. Recent advances in nanofabrication and optical manipulation techniques are making it possible to build arrays of quantum emitters with accurate control over the locations of their individual elements. In analogy with classical antenna arrays, this poses new opportunities for tailoring quantum interference effects by designing the geometry of the array. Here, we investigate the N th -order directional correlation function of the photons emitted by an array of N initially-excited identical quantum emitters, addressing the impact of the appearance of grating lobes. Our analysis reveals that the absence of directivity in the first-order correlation function is contrasted by an enhanced directivity in the N th -order one. This suggests that the emitted light consists of a superposition of directionally entangled photon bunches. Moreover, the photon correlation landscape changes radically with the appearance of grating lobes. In fact, the photons no longer tend to be bunched along the same direction; rather, they are distributed in a set of correlated directions with equal probability. These results clarify basic aspects of light emission from ensembles of quantum emitters. Furthermore, they may find applications in the design of nonclassical light sources.	en_US
dc.relation.ispartof	Photonics	en_US
dc.relation.isbasedon	10.3390/photonics6010014	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Grating lobes in higher-order correlation functions of arrays of quantum emitters: Directional photon bunching versus correlated directions	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	6	en_US
utslib.for	0205 Optical Physics	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	open_access	*
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	6	en_US

Abstract:

© 2019 by the authors. Recent advances in nanofabrication and optical manipulation techniques are making it possible to build arrays of quantum emitters with accurate control over the locations of their individual elements. In analogy with classical antenna arrays, this poses new opportunities for tailoring quantum interference effects by designing the geometry of the array. Here, we investigate the N th -order directional correlation function of the photons emitted by an array of N initially-excited identical quantum emitters, addressing the impact of the appearance of grating lobes. Our analysis reveals that the absence of directivity in the first-order correlation function is contrasted by an enhanced directivity in the N th -order one. This suggests that the emitted light consists of a superposition of directionally entangled photon bunches. Moreover, the photon correlation landscape changes radically with the appearance of grating lobes. In fact, the photons no longer tend to be bunched along the same direction; rather, they are distributed in a set of correlated directions with equal probability. These results clarify basic aspects of light emission from ensembles of quantum emitters. Furthermore, they may find applications in the design of nonclassical light sources.

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http://hdl.handle.net/10453/132925