LINEAR AND NONLINEAR REFRACTIVE INDEX CHANGES IN TRIPLE QUANTUM WELLS UNDER THE TİLTED MAGNETIC FIELDS


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Özbakır R. , Başpınar F.

INTERNATIONAL BLACK SEA COASTLINE COUNTRIES SYMPOSIUM - 2, Samsun, Türkiye, 20 - 22 Temmuz 2019, ss.412-418

  • Basıldığı Şehir: Samsun
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.412-418

Özet

ABSTRACT

In  this  study,  the  linear,  nonlinear  and  total  intersubband  refractive  index  changes  in 

GaAs/GaAlAs triple quantum wells are studied within the compact density-matrix approach. The 

effects of the magnetic field strength and direction of the magnetic field (tilt angle) on the 

electronic and optical properties of the GaAs/GaAlAs triple quantum wells are investigated. The 

energy levels and wave functions of the system are calculated by using the transfer matrix method  

within  the  effective  mass  approximation.  Our  results  show  that  the  electronic  and 

optical properties of the system are sensitive to the applied external field strength, the magnetic 

field  direction  and  well  parameters.  Thus,  we  can  conclude  that  the  effects  of  the  

applied external magnetic field and the tilt angle ( magnetic field direction) can be useful for 

electro- optical photodedectors and modulators.

Keywords: Triple Quantum Wells, Refractive Index, Tilted Magnetic Field