Kurumun Atıf Alan Makalesi
Atıf Alan Yayın
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
Intersubband resonant enhancement of the nonlinear optical properties in compositionally asymmetric and interdiffused quantum wells
Scopus
Havuzumuzda 24 atıf almış
We report the resonant enhancement of the second- and third-order optical nonlinearities in compositionally asymmetric quantum wells with finite confining potential and interdiffused quantum wells. The energy levels and the envelope wave functions in quantum wells are obtained by solving numerically the Schrödinger equation. The optical rectification, second and third harmonic generation coefficients are calculated within the framework of the density matrix formalism. The effect of the structure parameters such as the well width and the barrier height on the nonlinear optical properties is investigated in detail. The resulting nonlinear susceptibilities obtained in both quantum wells are considerably larger than those of bulk GaAs. © 2008 American Institute of Physics.
Atıf Yapan Makale Bilgileri
Kurumlar (2)
Middle East Technical University (METU)
Ankara, Turkey
Selçuk Üniversitesi
Selçuklu, Turkey