tailieunhanh - Influence of phonon confinement on cyclotron–phonon resonance in infinite square quantum well

Magneto-optical absorption coefficient (MOAC) in infinite square quantum well (SQW) is investigated by time-dependent perturbation method. The dependence of MOAC on the photon energy is calculated and graphically plotted. From the graphs showing this dependence, we obtained the spectral line width (the full-width at half maximum - FWHM) of the cyclotron-phonon resonance peaks using Profile method. The results show that the occurrence of peaks satisfies cyclotron-phonon resonance conditions and the FWHM of resonance peak increases with the magnetic field and decreases with the width of the quantum well. | Influence of phonon confinement on cyclotron–phonon resonance in infinite square quantum well INFLUENCE OF PHONON CONFINEMENT ON CYCLOTRON–PHONON RESONANCE IN INFINITE SQUARE QUANTUM WELL VO THANH LAM1 , LE DINH2 1 Sai Gon University, Email: vothanhlam2003@ 2 Hue University of Education, Email: ledinh@ Abstract: Magneto-optical absorption coefficient (MOAC) in infi- nite square quantum well (SQW) is investigated by time-dependent perturbation method. The dependence of MOAC on the photon en- ergy is calculated and graphically plotted. From the graphs showing this dependence, we obtained the spectral line width (the full-width at half maximum - FWHM) of the cyclotron-phonon resonance peaks using Profile method. The results show that the occurrence of peaks satisfies cyclotron-phonon resonance conditions and the FWHM of resonance peak increases with the magnetic field and decreases with the width of the quantum well. Keywords: Quantum well, Infinite square potential, Magneto-optical absorption coefficient, cyclotron - phonon resonance, Full-width at half maximum. 1. INTRODUCTION Cyclotron-phonon resonance (CPR) is an effect resulting from the interaction between electrons and phonons in semiconductors subjected to an electromagnetic field and a static magnetic field [1, 2]. This effect is the combination of two types of resonances: the cyclotron resonance, where the electromagnetic wave frequency Ω is equal to cyclotron frequency ωc [3, 4, 5] and the magneto-phonon resonance, where the phonon frequency ωq is equal to ωc [6, 7]. CPR is considered to be more general than the two above - mentioned resonances due to the combination of two actions: the absorption of a photon of energy ~Ω occurs simultaneously with absorbing or emitting a phonon. This means that the CPR arises at the photon energy ~Ω = p~ωc ± ~ω0 , where p is a positive integer. Because of its pivotal role, the CPR has .

• Vật lý
• Quantum well
• Infinite square potential
• Magneto optical absorption coefficient
• cyclotron phonon resonance
• Full width at half maximum
• Acoustomagnetoelectric field
• Electron phonon interaction
• Acoustic wave
• Quantum kinetic equation
• Nonlinear absorption power
• Absorption power
• Triangular potential
• Strong electromagnetic
• Intersubband absorption
• Landau levels
• Tilted magnetic
• Landau levels in gaas
• Acoustoelectric current
• Boltzmann kinetic equation
• Fermi energy
• Ettingshausen effect
• Confined optical phonons
• Electromagnetic wave
• Tạp chí khoa học
• Khoa học tự nhiên
• Parabolic potential
• Transverse Hall effect
• Confined phonons
• Exchange correlation effects
• Metal–insulator transition
• Many body effects
• Magnetic field
• GaAs/InGaAs/GaAs quantum well
• Electrophonon resonance effect
• Optically detected electrophonon resonance
• EPR phenomena arise
• Electron phonon resonance effect
• Hyperbolic quantum well
• Poschl Teller potential
• Poschl teller hyperbolic potential
• Low dimensional semiconductor physics
• Quantum well structures
• Optically detected magnetophonon resonance
• Nonsquare QW structure
• The nature of the optically detected MPR effect
• báo cáo khoa học
• báo cáo hóa học
• công trình nghiên cứu về hóa học
• tài liệu về hóa học
• cách trình bày báo cáo
• giếng lượng tử
• pin mặt trời
• Hố lượng tử
• vật lý lượng tử
• chuyên đề vật lý
• Semiconductor Lasers
• Electrons
• Photons
• Stimulated Emission
• Optical Gain
• Communications in Physics
• Lowest excited state impurity binding energy
• Ingan gan parabolic QWW
• Magnetic field effect
• Quantum well wire