Energy equipartition and unidirectional emission in a spaser nanolaser

Handle URI:
http://hdl.handle.net/10754/607656
Title:
Energy equipartition and unidirectional emission in a spaser nanolaser
Authors:
Gongora, J. S. Totero ( 0000-0003-2300-4218 ) ; Miroshnichenko, Andrey E.; Kivshar, Yuri S.; Fratalocchi, Andrea ( 0000-0001-6769-4439 )
Abstract:
A spaser is a nanoplasmonic counterpart of a laser, with photons replaced by surface plasmon polaritons and a resonant cavity replaced by a metallic nanostructure supporting localized plasmonic modes. By combining analytical results and first-principle numerical simulations, we provide a comprehensive study of the ultrafast dynamics of a spaser. Due to its highly-nonlinear nature, the spaser is characterized by a large number of interacting degrees of freedom, which sustain a rich manifold of different phases we discover, describe and analyze here. In the regime of strong interaction, the system manifests an irreversible ergodic evolution towards the configuration where energy is equally shared among all the available degrees of freedom. Under this condition, the spaser generates ultrafast vortex-like lasing modes that are spinning on the femtosecond scale and whose direction of rotation is dictated by quantum noise. In this regime, the spaser acquires the character of a nanoparticle with an effective spin. This opens up a range of interesting possibilities for achieving unidirectional emission from a symmetric nanostructure, stimulating a broad range of applications for nanoplasmonic lasers as unidirectional couplers and random information sources.
KAUST Department:
PRIMALIGHT Research Group
Citation:
Energy equipartition and unidirectional emission in a spaser nanolaser 2016:n/a Laser & Photonics Reviews
Publisher:
Wiley-Blackwell
Journal:
Laser & Photonics Reviews
Issue Date:
18-Mar-2016
DOI:
10.1002/lpor.201500239
Type:
Article
ISSN:
18638880
Sponsors:
For the computer time, we have used the resources of the KAUST Supercomputing Laboratory. This work is part of the research program of “Kaust Optics and plasmonics for efficient energy harvesting” (Award No. CRG-1-2012-FRA-005) and it was also supported by the Australian Research Council.
Additional Links:
http://doi.wiley.com/10.1002/lpor.201500239
Appears in Collections:
Articles; PRIMALIGHT Research Group

Full metadata record

DC FieldValue Language
dc.contributor.authorGongora, J. S. Toteroen
dc.contributor.authorMiroshnichenko, Andrey E.en
dc.contributor.authorKivshar, Yuri S.en
dc.contributor.authorFratalocchi, Andreaen
dc.date.accessioned2016-05-02T08:47:55Zen
dc.date.available2016-05-02T08:47:55Zen
dc.date.issued2016-03-18en
dc.identifier.citationEnergy equipartition and unidirectional emission in a spaser nanolaser 2016:n/a Laser & Photonics Reviewsen
dc.identifier.issn18638880en
dc.identifier.doi10.1002/lpor.201500239en
dc.identifier.urihttp://hdl.handle.net/10754/607656en
dc.description.abstractA spaser is a nanoplasmonic counterpart of a laser, with photons replaced by surface plasmon polaritons and a resonant cavity replaced by a metallic nanostructure supporting localized plasmonic modes. By combining analytical results and first-principle numerical simulations, we provide a comprehensive study of the ultrafast dynamics of a spaser. Due to its highly-nonlinear nature, the spaser is characterized by a large number of interacting degrees of freedom, which sustain a rich manifold of different phases we discover, describe and analyze here. In the regime of strong interaction, the system manifests an irreversible ergodic evolution towards the configuration where energy is equally shared among all the available degrees of freedom. Under this condition, the spaser generates ultrafast vortex-like lasing modes that are spinning on the femtosecond scale and whose direction of rotation is dictated by quantum noise. In this regime, the spaser acquires the character of a nanoparticle with an effective spin. This opens up a range of interesting possibilities for achieving unidirectional emission from a symmetric nanostructure, stimulating a broad range of applications for nanoplasmonic lasers as unidirectional couplers and random information sources.en
dc.description.sponsorshipFor the computer time, we have used the resources of the KAUST Supercomputing Laboratory. This work is part of the research program of “Kaust Optics and plasmonics for efficient energy harvesting” (Award No. CRG-1-2012-FRA-005) and it was also supported by the Australian Research Council.en
dc.language.isoenen
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://doi.wiley.com/10.1002/lpor.201500239en
dc.rightsThis is the peer reviewed version of the following article: Totero Gongora, J. S., Miroshnichenko, A. E., Kivshar, Y. S. and Fratalocchi, A. (2016), Energy equipartition and unidirectional emission in a spaser nanolaser. Laser & Photon. Rev.. , which has been published in final form at http://doi.wiley.com/10.1002/lpor.201500239. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.en
dc.subjectplasmonicsen
dc.subjectspaseren
dc.subjectrotating dipoleen
dc.subjectFDTDen
dc.subjectnonlinear dynamicsen
dc.subjectplasmonic launcheren
dc.titleEnergy equipartition and unidirectional emission in a spaser nanolaseren
dc.typeArticleen
dc.contributor.departmentPRIMALIGHT Research Groupen
dc.identifier.journalLaser & Photonics Reviewsen
dc.eprint.versionPost-printen
dc.contributor.institutionNonlinear Physics Centre; Australian National University; Canberra ACT 2601 Australiaen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorGongora, J. S. Toteroen
kaust.authorFratalocchi, Andreaen
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