LINEAR AND NONLINEAR INTERSUBBAND REFRACTIVE INDEX CHANGES IN WURTZITE AlGaN/GaN DOUBLE QUANTUM WELLS:: EFFECTS OF PIEZOELECTRICITY AND SPONTANEOUS POLARIZATION.
In: Surface Review & Letters, Jg. 16 (2009-02-01), Heft 1, S. 11-17
academicJournal
Zugriff:
Based on the density-matrix approach and iterative treatment, a detailed procedure for the calculation of the linear and nonlinear intersubband refractive index changes (RICs) in wurtzite GaN-based coupling quantum wells (CQWs) is given. The simple analytical formulas for electronic eigenstates and the linear and third-order nonlinear RICs in the systems are also deduced. Numerical result on a typical AlGaN/GaN CQW shows that the linear and nonlinear RICs sensitively depend on the structural parameters of the CQW system as well as the doped fraction of nitride semicondutor. [ABSTRACT FROM AUTHOR]
Titel: |
LINEAR AND NONLINEAR INTERSUBBAND REFRACTIVE INDEX CHANGES IN WURTZITE AlGaN/GaN DOUBLE QUANTUM WELLS:: EFFECTS OF PIEZOELECTRICITY AND SPONTANEOUS POLARIZATION.
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Autor/in / Beteiligte Person: | ZHANG, L. |
Zeitschrift: | Surface Review & Letters, Jg. 16 (2009-02-01), Heft 1, S. 11-17 |
Veröffentlichung: | 2009 |
Medientyp: | academicJournal |
ISSN: | 0218-625X (print) |
DOI: | 10.1142/S0218625X09012226 |
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