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Article: Lasing threshold dependence on excitation pulse duration in ZnO tetrapods

TitleLasing threshold dependence on excitation pulse duration in ZnO tetrapods
Authors
Hsu, YFLeong, ESPKwok, WMDjurišić, ABYu, SFPhillips, DLChan, WK
KeywordsLasing
Tetrapod
ZnO
Issue Date2008
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/optmat
Citation
Optical Materials, 2008, v. 31 n. 1, p. 35-38 How to Cite?
DOI: http://dx.doi.org/10.1016/j.optmat.2008.01.002
AbstractThe dependence of the stimulated emission from ZnO tetrapods on the excitation pulse duration was studied. In all cases, clear lasing modes with a width of 0.5-0.8 nm were observed. However, lasing thresholds were significantly different. The thresholds observed were 57 μJ/cm2, 840 μJ/cm2, and 4.2 mJ/cm2 for 250 fs, 120 ps, and 6 ns excitation pulses, respectively. The same trends (a decrease of lasing threshold with a decrease of pulse duration) are observed in samples with different tetrapod densities, although the differences become less pronounced in higher tetrapod density samples where lasing from multiple tetrapods can occur. © 2008 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/58347
ISSN
0925-3467
2021 Impact Factor: 3.754
2020 SCImago Journal Rankings: 0.598
ISI Accession Number ID
WOS:000259731800005
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorHsu, YFen_HK
dc.contributor.authorLeong, ESPen_HK
dc.contributor.authorKwok, WMen_HK
dc.contributor.authorDjurišić, ABen_HK
dc.contributor.authorYu, SFen_HK
dc.contributor.authorPhillips, DLen_HK
dc.contributor.authorChan, WKen_HK
dc.date.accessioned2010-05-31T03:28:43Z-
dc.date.available2010-05-31T03:28:43Z-
dc.date.issued2008en_HK
dc.identifier.citationOptical Materials, 2008, v. 31 n. 1, p. 35-38en_HK
dc.identifier.issn0925-3467en_HK
dc.identifier.urihttp://hdl.handle.net/10722/58347-
dc.description.abstractThe dependence of the stimulated emission from ZnO tetrapods on the excitation pulse duration was studied. In all cases, clear lasing modes with a width of 0.5-0.8 nm were observed. However, lasing thresholds were significantly different. The thresholds observed were 57 μJ/cm2, 840 μJ/cm2, and 4.2 mJ/cm2 for 250 fs, 120 ps, and 6 ns excitation pulses, respectively. The same trends (a decrease of lasing threshold with a decrease of pulse duration) are observed in samples with different tetrapod densities, although the differences become less pronounced in higher tetrapod density samples where lasing from multiple tetrapods can occur. © 2008 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/optmaten_HK
dc.relation.ispartofOptical Materialsen_HK
dc.rightsOptical Materials. Copyright © Marcel Dekker Inc.en_HK
dc.subjectLasingen_HK
dc.subjectTetrapoden_HK
dc.subjectZnOen_HK
dc.titleLasing threshold dependence on excitation pulse duration in ZnO tetrapodsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1056-5825&volume=31&spage=35&epage=38&date=2008&atitle=Lasing+threshold+dependence+on+excitation+pulse+duration+in+ZnO+tetrapodsen_HK
dc.identifier.emailDjurišić, AB: dalek@hku.hken_HK
dc.identifier.emailPhillips, DL: phillips@hku.hken_HK
dc.identifier.authorityDjurišić, AB=rp00690en_HK
dc.identifier.authorityPhillips, DL=rp00770en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.optmat.2008.01.002en_HK
dc.identifier.scopuseid_2-s2.0-50249093232en_HK
dc.identifier.hkuros152371en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-50249093232&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume31en_HK
dc.identifier.issue1en_HK
dc.identifier.spage35en_HK
dc.identifier.epage38en_HK
dc.identifier.isiWOS:000259731800005-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridHsu, YF=16063930300en_HK
dc.identifier.scopusauthoridLeong, ESP=8602540400en_HK
dc.identifier.scopusauthoridKwok, WM=7103129332en_HK
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_HK
dc.identifier.scopusauthoridYu, SF=8602540300en_HK
dc.identifier.scopusauthoridPhillips, DL=7404519365en_HK
dc.identifier.scopusauthoridChan, WK=8059126200en_HK
dc.identifier.issnl0925-3467-

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