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Article: On the inverse phase characteristics of Gaussian beams in negative refractive index materials
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TitleOn the inverse phase characteristics of Gaussian beams in negative refractive index materials
 
AuthorsChen, XH1
Soh, AK1
 
KeywordsGaussian Beam
Left-Handed Materials
Phase Characteristics
 
Issue Date2009
 
PublisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/Journals/jopa
 
CitationJournal Of Optics A: Pure And Applied Optics, 2009, v. 11 n. 10 [How to Cite?]
DOI: http://dx.doi.org/10.1088/1464-4258/11/10/105101
 
AbstractThe phase characteristics of Gaussian beams in negative refractive index (NRI) slabs have been quantitatively investigated via the finite-difference time-domain (FDTD) method. The phase and magnitude distributions for both the normal and oblique incidences of continuous wave Gaussian beams are presented. For the normal incidence, all three contributions of the phase, i.e., plane-wave phase, radial phase and Guoy phase shift, have been shown to be the reverse of their counterparts in free space, which evidently reveals how phase compensation is caused by a NRI slab. Moreover, it is worth noting that our FDTD results are more accurate than the paraxial results in the case of a Gaussian beam propagating beyond the paraxial approximation. © 2009 IOP Publishing Ltd.
 
ISSN1464-4258
 
DOIhttp://dx.doi.org/10.1088/1464-4258/11/10/105101
 
ISI Accession Number IDWOS:000269822200005
Funding AgencyGrant Number
University Research Grant of the University of Hong Kong
Funding Information:

Support from the University Research Grant of the University of Hong Kong is acknowledged.

 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorChen, XH
 
dc.contributor.authorSoh, AK
 
dc.date.accessioned2012-08-08T08:45:02Z
 
dc.date.available2012-08-08T08:45:02Z
 
dc.date.issued2009
 
dc.description.abstractThe phase characteristics of Gaussian beams in negative refractive index (NRI) slabs have been quantitatively investigated via the finite-difference time-domain (FDTD) method. The phase and magnitude distributions for both the normal and oblique incidences of continuous wave Gaussian beams are presented. For the normal incidence, all three contributions of the phase, i.e., plane-wave phase, radial phase and Guoy phase shift, have been shown to be the reverse of their counterparts in free space, which evidently reveals how phase compensation is caused by a NRI slab. Moreover, it is worth noting that our FDTD results are more accurate than the paraxial results in the case of a Gaussian beam propagating beyond the paraxial approximation. © 2009 IOP Publishing Ltd.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationJournal Of Optics A: Pure And Applied Optics, 2009, v. 11 n. 10 [How to Cite?]
DOI: http://dx.doi.org/10.1088/1464-4258/11/10/105101
 
dc.identifier.doihttp://dx.doi.org/10.1088/1464-4258/11/10/105101
 
dc.identifier.isiWOS:000269822200005
Funding AgencyGrant Number
University Research Grant of the University of Hong Kong
Funding Information:

Support from the University Research Grant of the University of Hong Kong is acknowledged.

 
dc.identifier.issn1464-4258
 
dc.identifier.issue10
 
dc.identifier.scopuseid_2-s2.0-70449338021
 
dc.identifier.urihttp://hdl.handle.net/10722/157033
 
dc.identifier.volume11
 
dc.languageeng
 
dc.publisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/Journals/jopa
 
dc.publisher.placeUnited Kingdom
 
dc.relation.ispartofJournal of Optics A: Pure and Applied Optics
 
dc.relation.referencesReferences in Scopus
 
dc.subjectGaussian Beam
 
dc.subjectLeft-Handed Materials
 
dc.subjectPhase Characteristics
 
dc.titleOn the inverse phase characteristics of Gaussian beams in negative refractive index materials
 
dc.typeArticle
 
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<description.abstract>The phase characteristics of Gaussian beams in negative refractive index (NRI) slabs have been quantitatively investigated via the finite-difference time-domain (FDTD) method. The phase and magnitude distributions for both the normal and oblique incidences of continuous wave Gaussian beams are presented. For the normal incidence, all three contributions of the phase, i.e., plane-wave phase, radial phase and Guoy phase shift, have been shown to be the reverse of their counterparts in free space, which evidently reveals how phase compensation is caused by a NRI slab. Moreover, it is worth noting that our FDTD results are more accurate than the paraxial results in the case of a Gaussian beam propagating beyond the paraxial approximation. &#169; 2009 IOP Publishing Ltd.</description.abstract>
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Author Affiliations
  1. The University of Hong Kong