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Article: Single-mode whispering gallery lasing from metal-clad GaN nanopillars

TitleSingle-mode whispering gallery lasing from metal-clad GaN nanopillars
Authors
Issue Date2012
PublisherOptical Society of America. The Journal's web site is located at http://www.opticsinfobase.org/current.cfm?journal=3
Citation
Optics Letters, 2012, v. 37 n. 3, p. 374-376 How to Cite?
AbstractAn ordered hexagonal closed-packed nanopillar array is fabricated on GaN. A metal coating is then applied to encapsulate the pillars for promoting optical confinement within the cylindrical cavity. Room-temperature lasing at 373 nm is observed under pulsed excitation, at a lasing threshold of 0.42 MW/cm 2. With pillar diameters of around 980 nm, the number of modes overlapping the emission spectrum is reduced, giving rise to single-mode whispering gallery stimulated emission. Finite-difference time-domain simulations are carried out for the prediction of resonant frequencies and electric field patterns corresponding to the resonant modes. © 2012 Optical Society of America.
Persistent Identifierhttp://hdl.handle.net/10722/155727
ISSN
2015 Impact Factor: 3.04
2015 SCImago Journal Rankings: 2.397
References

 

DC FieldValueLanguage
dc.contributor.authorLi, KHen_US
dc.contributor.authorMa, Zen_US
dc.contributor.authorChoi, HWen_US
dc.date.accessioned2012-08-08T08:35:02Z-
dc.date.available2012-08-08T08:35:02Z-
dc.date.issued2012en_US
dc.identifier.citationOptics Letters, 2012, v. 37 n. 3, p. 374-376en_US
dc.identifier.issn0146-9592en_US
dc.identifier.urihttp://hdl.handle.net/10722/155727-
dc.description.abstractAn ordered hexagonal closed-packed nanopillar array is fabricated on GaN. A metal coating is then applied to encapsulate the pillars for promoting optical confinement within the cylindrical cavity. Room-temperature lasing at 373 nm is observed under pulsed excitation, at a lasing threshold of 0.42 MW/cm 2. With pillar diameters of around 980 nm, the number of modes overlapping the emission spectrum is reduced, giving rise to single-mode whispering gallery stimulated emission. Finite-difference time-domain simulations are carried out for the prediction of resonant frequencies and electric field patterns corresponding to the resonant modes. © 2012 Optical Society of America.en_US
dc.languageengen_US
dc.publisherOptical Society of America. The Journal's web site is located at http://www.opticsinfobase.org/current.cfm?journal=3en_US
dc.relation.ispartofOptics Lettersen_US
dc.rightsOptics Letters. Copyright © Optical Society of America-
dc.rightsThis paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-37-3-374. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subject.meshGallium - chemistry-
dc.subject.meshLasers-
dc.subject.meshMetals - chemistry-
dc.subject.meshNanostructures - chemistry-
dc.subject.meshNanotechnology - methods-
dc.titleSingle-mode whispering gallery lasing from metal-clad GaN nanopillarsen_US
dc.typeArticleen_US
dc.identifier.emailChoi, HW: hwchoi@hku.hken_US
dc.identifier.authorityChoi, HW=rp00108en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1364/OL.37.000374en_US
dc.identifier.pmid22297357-
dc.identifier.scopuseid_2-s2.0-84856664770en_US
dc.identifier.hkuros204463-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84856664770&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume37en_US
dc.identifier.issue3en_US
dc.identifier.spage374en_US
dc.identifier.epage376en_US
dc.identifier.eissn1539-4794-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridLi, KH=8976237500en_US
dc.identifier.scopusauthoridMa, Z=8504594000en_US
dc.identifier.scopusauthoridChoi, HW=7404334877en_US
dc.customcontrol.immutablesml 140326-

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