Kurumun Atıf Alan Makalesi
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Nonlinear optical rectification in asymmetrical semiparabolic quantum wells
Scopus
Toplam 149 atıf DOI
The optical rectification in a semiparabolic quantum well is theoretically investigated. The electronic states in a semiparabolic quantum well are calculated exactly, within the envelope function and the displaced harmonic oscillator approach. The nonlinearity resulting from the asymmetry of the confining potential is studied in the lowest order. The numerical results for the typical AlxGa1-xAs/GaAs material show that the large optical rectification coefficient decreases with increasing confining potential frequency of the semiparabolic quantum well. Moreover, the optical rectification coefficient also depends sensitively on the relaxation rate of semiparabolic quantum well system. © 2005 Elsevier Ltd. All rights reserved.
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Atıf Yapan Yayın
Second harmonic generation in an asymmetric rectangular quantum well under hydrostatic pressure
Scopus
Havuzumuzda 45 atıf almış
The effects of structure parameters and hydrostatic pressure on the electronic states and the second harmonic generation (SHG) susceptibility of asymmetric rectangular quantum well (ARQW) are studied. The asymmetry of the potential can be controlled by changing the structural parameters and this adjustable asymmetry is important for optimizing the SHG susceptibility. We have calculated analytically the electronic states in ARQW within the framework of the envelope function approach. Numerical results for AlxlGa1-xlAs/GaAs/AlxrGa1-xrAs quantum well are presented. The results obtained show that the hydrostatic pressure and the structure parameters of ARQW significantly influence the SHG susceptibility. This behavior in the SHG susceptibility gives a new degree of freedom in regions of interest for device applications. © 2007 Elsevier B.V. All rights reserved.
Atıf Yapan Makale Bilgileri
Kurumlar (2)
Middle East Technical University (METU)
Ankara, Turkey
Selçuk Üniversitesi
Selçuklu, Turkey