Browsing by Subject cylindrical quantum wires

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  • Authors: Nguyen, Quoc Hung; Nguyen, Quang Bau (2002)

  • Based on the quantum kinetic equation for phonon, the amplification of sound (acoustic phonons) due to the absorption of laser radiation in cylindrical quantum wires with parabolic potential in the presence of m agnetic field is studied. Analytical expressions for the rate of acoustic phonons excitations, the conditions for the amplification of sound and the momentum conditions for electron to participate in the amplification of sound are obtained for the two cases: singlephoton absorption process and multiphoton absorption process. The differences between the two cases of singlephoton absorption and m ultiphoton absorption are discussed; the numerical computations and plots are car...

  • 38.pdf.jpg
  • Article


  • Authors: Nguyen, Thu Huong; Nguyen, Vu Nhan; Dang, Thi Thanh Thuy (2016)

  • Considering an infinite potential Cylindrical Quantum Wire (CQW) subjected to a dc electric field , a Magnetic Field (MF) and a laser radiation (where and are the amplitude and the frequency of the laser radiation, respectively), the quantum kinetic equation for electron distribution function is obtained. Assuming the electron gas is non-degenerate and considering the Electron - Acoustic Phonon (AP) interaction, we achieve analytical expressions for the conductivity tensor and the Hall Coefficient (HC), which are different from those for the case of the Electron - AP interaction in a Rectangular Quantum Wire (RQW) or in Two-Dimensional Electron Gas (2DEG). The Shubnikov-de Haas (Sd...

Browsing by Subject cylindrical quantum wires

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 1 to 2 of 2
  • 258.pdf.jpg
  • Article


  • Authors: Nguyen, Quoc Hung; Nguyen, Quang Bau (2002)

  • Based on the quantum kinetic equation for phonon, the amplification of sound (acoustic phonons) due to the absorption of laser radiation in cylindrical quantum wires with parabolic potential in the presence of m agnetic field is studied. Analytical expressions for the rate of acoustic phonons excitations, the conditions for the amplification of sound and the momentum conditions for electron to participate in the amplification of sound are obtained for the two cases: singlephoton absorption process and multiphoton absorption process. The differences between the two cases of singlephoton absorption and m ultiphoton absorption are discussed; the numerical computations and plots are car...

  • 38.pdf.jpg
  • Article


  • Authors: Nguyen, Thu Huong; Nguyen, Vu Nhan; Dang, Thi Thanh Thuy (2016)

  • Considering an infinite potential Cylindrical Quantum Wire (CQW) subjected to a dc electric field , a Magnetic Field (MF) and a laser radiation (where and are the amplitude and the frequency of the laser radiation, respectively), the quantum kinetic equation for electron distribution function is obtained. Assuming the electron gas is non-degenerate and considering the Electron - Acoustic Phonon (AP) interaction, we achieve analytical expressions for the conductivity tensor and the Hall Coefficient (HC), which are different from those for the case of the Electron - AP interaction in a Rectangular Quantum Wire (RQW) or in Two-Dimensional Electron Gas (2DEG). The Shubnikov-de Haas (Sd...