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Article: Refractive index of interdiffused AlGaAs/GaAs quantum well

TitleRefractive index of interdiffused AlGaAs/GaAs quantum well
Authors
KeywordsPhysics engineering
Issue Date1997
PublisherAmerican Institute of Physics. The Journal's web site is located at http://jap.aip.org/jap/staff.jsp
Citation
Journal of Applied Physics, 1997, v. 82 n. 12, p. 6251-6258 How to Cite?
AbstractA model is developed for the polarization dependent refractive index of interdiffused AlGaAs/GaAs quantum well at room temperature for wavelengths ranging from 0.6 to 2 µm. The present model is based on a semianalytic and semiempirical method through the Kramers–Krönig transformation. The multi-quantum-well structures, including the exciton effect and above barrier gap contributions, are fully considered in this model. The distinct structures at energies of the E0,E0 + 0,E1, and E2 critical points are revealed. Moreover, the birefringence at room temperature is also analyzed in the wavelength range varying from 0.7 to 1.0 µm. The calculated refractive index results are in satisfactory agreement with the experimental measurements over the quantum well band edge, i.e., 0.8–0.9 µm. The effect of interdiffusion on the change of refractive index is discussed. The polarization dependent absorption coefficients are also calculated with all the bound excitons, and results agree well with experiments. These results are important, since refraction index in a particular wavelength region of interest, where experimental data are not available, can be determined and thus are very useful in the design of devices. ©1997 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/42778
ISSN
2015 Impact Factor: 2.101
2015 SCImago Journal Rankings: 0.603
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLi, EHen_HK
dc.date.accessioned2007-03-23T04:32:01Z-
dc.date.available2007-03-23T04:32:01Z-
dc.date.issued1997en_HK
dc.identifier.citationJournal of Applied Physics, 1997, v. 82 n. 12, p. 6251-6258en_HK
dc.identifier.issn0021-8979en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42778-
dc.description.abstractA model is developed for the polarization dependent refractive index of interdiffused AlGaAs/GaAs quantum well at room temperature for wavelengths ranging from 0.6 to 2 µm. The present model is based on a semianalytic and semiempirical method through the Kramers–Krönig transformation. The multi-quantum-well structures, including the exciton effect and above barrier gap contributions, are fully considered in this model. The distinct structures at energies of the E0,E0 + 0,E1, and E2 critical points are revealed. Moreover, the birefringence at room temperature is also analyzed in the wavelength range varying from 0.7 to 1.0 µm. The calculated refractive index results are in satisfactory agreement with the experimental measurements over the quantum well band edge, i.e., 0.8–0.9 µm. The effect of interdiffusion on the change of refractive index is discussed. The polarization dependent absorption coefficients are also calculated with all the bound excitons, and results agree well with experiments. These results are important, since refraction index in a particular wavelength region of interest, where experimental data are not available, can be determined and thus are very useful in the design of devices. ©1997 American Institute of Physics.en_HK
dc.format.extent222791 bytes-
dc.format.extent31232 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://jap.aip.org/jap/staff.jspen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPhysics engineeringen_HK
dc.titleRefractive index of interdiffused AlGaAs/GaAs quantum wellen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0021-8979&volume=82&issue=12&spage=6251&epage=6258&date=1997&atitle=Refractive+index+of+interdiffused+AlGaAs/GaAs+quantum+wellen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1063/1.366512en_HK
dc.identifier.hkuros37954-
dc.identifier.isiWOS:000071043400055-

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