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Conference Paper: Modeling the optical constants of AlxGa1-xAs alloys

TitleModeling the optical constants of AlxGa1-xAs alloys
Authors
Rakic, ADDjurisic, ABLi, EHMajewski, ML
KeywordsPhysics
Optics
Issue Date1998
PublisherIEEE.
Citation
Conference on Optoelectronic and Microelectronic Materials and Devices Proceedings, Perth, Western Australia, 14-16 December 1998, p. 396-399 How to Cite?
DOI: http://dx.doi.org/10.1109/COMMAD.1998.791672
AbstractExtension of Adachi's model with a Gaussian-like broadening function instead of a Lorentzian one is used to model the optical dielectric function of the alloy AlxGa1-xAs. Gaussian-like broadening is accomplished by replacing the damping constant in the Lorentzian line shape with a frequency dependent expression. In such a manner, the comparative simplicity of analytic formulae of the model is preserved, while the accuracy becomes comparable to more intricate models, and/or models with a significantly greater number of parameters. The employed model describes accurately the optical dielectric function in the spectral range from 1.5 to 6.0 eV in the entire alloy composition range. Relative rms error obtained for the refractive index is below 2.2% for all compositions
Persistent Identifierhttp://hdl.handle.net/10722/46129
ISSN
1097-2137

 

DC FieldValueLanguage
dc.contributor.authorRakic, ADen_HK
dc.contributor.authorDjurisic, ABen_HK
dc.contributor.authorLi, EHen_HK
dc.contributor.authorMajewski, MLen_HK
dc.date.accessioned2007-10-30T06:43:08Z-
dc.date.available2007-10-30T06:43:08Z-
dc.date.issued1998en_HK
dc.identifier.citationConference on Optoelectronic and Microelectronic Materials and Devices Proceedings, Perth, Western Australia, 14-16 December 1998, p. 396-399en_HK
dc.identifier.issn1097-2137en_HK
dc.identifier.urihttp://hdl.handle.net/10722/46129-
dc.description.abstractExtension of Adachi's model with a Gaussian-like broadening function instead of a Lorentzian one is used to model the optical dielectric function of the alloy AlxGa1-xAs. Gaussian-like broadening is accomplished by replacing the damping constant in the Lorentzian line shape with a frequency dependent expression. In such a manner, the comparative simplicity of analytic formulae of the model is preserved, while the accuracy becomes comparable to more intricate models, and/or models with a significantly greater number of parameters. The employed model describes accurately the optical dielectric function in the spectral range from 1.5 to 6.0 eV in the entire alloy composition range. Relative rms error obtained for the refractive index is below 2.2% for all compositionsen_HK
dc.format.extent415725 bytes-
dc.format.extent3553 bytes-
dc.format.extent14323 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.rights©1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.-
dc.subjectPhysicsen_HK
dc.subjectOpticsen_HK
dc.titleModeling the optical constants of AlxGa1-xAs alloysen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1097-2137&volume=&spage=396&epage=399&date=1998&atitle=Modeling+the+optical+constants+of+AlxGa1-xAs+alloysen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/COMMAD.1998.791672en_HK
dc.identifier.hkuros45417-
dc.identifier.issnl1097-2137-

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