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Article: Modelling the optical constants of organic thin films: Impact of the choice of objective function

TitleModelling the optical constants of organic thin films: Impact of the choice of objective function
Authors
Issue Date2000
PublisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/Journals/jopa
Citation
Journal Of Optics A: Pure And Applied Optics, 2000, v. 2 n. 5, p. 458-464 How to Cite?
AbstractIn this work, we model the optical constants of three organic materials using a modified Lorentz oscillator model. We have analysed the impact of the choice of the objective or merit function, which is employed for model parameter estimation, on the modelling of the optical constants. The objective function for model parameter determination should be chosen in such a manner that discrepancies between the experimental and calculated values for both parts of the index of refraction are minimized at the same time. We have found that the choice of objective function strongly influences the existence of multiple solutions. By combining a global optimization method, an appropriately chosen objective function and a modified oscillator model, we obtain good agreement with the experimental data for three organic materials.
Persistent Identifierhttp://hdl.handle.net/10722/73670
ISSN
2011 Impact Factor: 1.924
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorDjurišić, ABen_HK
dc.contributor.authorFritz, Ten_HK
dc.contributor.authorLeo, Ken_HK
dc.date.accessioned2010-09-06T06:53:38Z-
dc.date.available2010-09-06T06:53:38Z-
dc.date.issued2000en_HK
dc.identifier.citationJournal Of Optics A: Pure And Applied Optics, 2000, v. 2 n. 5, p. 458-464en_HK
dc.identifier.issn1464-4258en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73670-
dc.description.abstractIn this work, we model the optical constants of three organic materials using a modified Lorentz oscillator model. We have analysed the impact of the choice of the objective or merit function, which is employed for model parameter estimation, on the modelling of the optical constants. The objective function for model parameter determination should be chosen in such a manner that discrepancies between the experimental and calculated values for both parts of the index of refraction are minimized at the same time. We have found that the choice of objective function strongly influences the existence of multiple solutions. By combining a global optimization method, an appropriately chosen objective function and a modified oscillator model, we obtain good agreement with the experimental data for three organic materials.en_HK
dc.languageengen_HK
dc.publisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/Journals/jopaen_HK
dc.relation.ispartofJournal of Optics A: Pure and Applied Opticsen_HK
dc.titleModelling the optical constants of organic thin films: Impact of the choice of objective functionen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1464-4258&volume=&spage=458&epage=464&date=2000&atitle=Modeling+the+optical+constants+of+organic+thin+films:+impact+of+the+choice+of+objective+functionen_HK
dc.identifier.emailDjurišić, AB: dalek@hku.hken_HK
dc.identifier.authorityDjurišić, AB=rp00690en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1088/1464-4258/2/5/318en_HK
dc.identifier.scopuseid_2-s2.0-0003528174en_HK
dc.identifier.hkuros63730en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0003528174&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume2en_HK
dc.identifier.issue5en_HK
dc.identifier.spage458en_HK
dc.identifier.epage464en_HK
dc.identifier.isiWOS:000089910200023-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_HK
dc.identifier.scopusauthoridFritz, T=7102033452en_HK
dc.identifier.scopusauthoridLeo, K=7006009729en_HK

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