Quantum wire with parallelogram cross section: optical properties

In the present work, the optical properties of a GaAs quantum wire with a parallelogram cross section are studied. In this regard, we have used the expressions for the optical properties obtained by the compact-density matrix formalism. Here, we have investigated the intersubband optical absorption...

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Bibliographic Details
Published inJournal of theoretical and applied physics Vol. 6; no. 1; p. 19
Main Author Khordad, Reza
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 2012
BioMed Central Ltd
Subjects
Applied and Technical Physics
Atomic
Condensed Matter Physics
Medical and Radiation Physics
Molecular
Nanoscale Science and Technology
Optical and Plasma Physics
Physics
Physics and Astronomy
Quantum wire
Absorption coefficient
Optical properties
78.67.-n; 78.67.Lt
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Summary:In the present work, the optical properties of a GaAs quantum wire with a parallelogram cross section are studied. In this regard, we have used the expressions for the optical properties obtained by the compact-density matrix formalism. Here, we have investigated the intersubband optical absorption coefficients and refractive index changes as a function of the structure parameter of the wire (side length) and the incident optical intensity. According to the obtained results, it is found that (1) the total refractive index changes increase and shift towards lower energies when the side length increases and that (2) the total absorption coefficient decreases as the side length increases. Also, the resonance peak shifts towards lower energies by increasing the side length.
ISSN:1735-9325
2251-7235
2251-7235
DOI:10.1186/2251-7235-6-19