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1. Full name : Do Manh Hung
2. Sex: Male
3. Date of birth: 03/5/1971
4. Place of birth: Vinh Phuc
5. Admission decision number: 126/ SĐH. Dated 05/4/2007
6. Changes in academic process: No change
(List the forms of change and corresponding times)
7. Official thesis title: Some effects in low dimensional semiconductor systems
8. Major: Theoretical Physics and Mathematics Physics
9. Code: 62 44 01 01
10. Supervisors:
1. Prof. Nguyen Quang Bau
2. Prof. Bach Thanh Cong
11. Summary of the new findings of the thesis:
11.1. Establish the quantum equation for electronic detention, analytical expressions for the nonlinear absorption coefficient of a strong electromagnetic wave caused by confined electrons for the case of electron- optical phonon scattering in compositional superlattices for both cases and no magnetic field.
11.2. Establish the quantum equation for electronic detention, analytical expressions for the nonlinear absorption coefficient of a strong electromagnetic wave caused by confined electrons for the case of electron- phonon scattering in doping superlattices, for both cases and no magnetic field.
11.3. Establish the quantum equation for electronic detention, analytical expressions for the nonlinear absorption coefficient of a strong electromagnetic wave caused by confined electrons for the case of electron- phonon scattering in quantum wells, for both cases and no magnetic field.
11.4. Obtained system of equations for the quantum phonon and phonon optical audio captivity captive, analytical expressions for the threshold and amplitude coefficient of variation between the phonon sound parameters detention and imprisonment in the optical phonon quantum wells.
The analytic expressions are numerically evaluated, plotted, and discussed for
a specific superlattices and quantum well. The computations show that the nonlinear absorption coefficient is much more greater than to it is normal bulk semiconductor. The appearance of an external magnetic field causes surprising changes in the nonlinear absorption. All the results are compared with those for the normal bulk semiconductors to show the difference.
12. Practical applicability, if any:
12.1. Is the theoretical basis of research and manufacture of micro electronic components and multi-functional smart.
12.2. Is the theoretical basis for studying the effects of the new two-dimensional systems and in particular low-dimensional semiconductor systems in general.
13. Further research directions:
13.1. To study the nonlinear absorption coefficient of electromagnetic
waves by strong confined electronic in low dimensional systems such as one-dimensional systems (quantum wires), non-dimensional system (quantum dots).
13.2. To study the phenomenon of resonance parameters and transformation parameters between the phonon sound detention and imprisonment optical phonons in semiconductor superlattice, and the one-dimensional semicon-ductor systems, non-dimensional
14. Thesis-related publications:
1. Do Manh Hung, Le Thi Thu Phuong, Nguyen Vu Nhan and Nguyen Quang Bau (2008), “On the Nonlinear Absorption Coefficient of a Strong Electromagnetic Wave Caused by Confined Electrons in Quantum Wells”, AMSN-NhaTrang, Vietnam-September 15-21, pp.921-926.
2. Nguyen Van Thuan, Do Manh Hung, Nguyen Quang Bau (2008), “Influence of Magnetic Field on the Nonlinear Absorption coefficient of a Strong electromagnetic Wave by Confined Electrons in Doping Superlattices” VNU Journal of Science, Mathematics-Physics, No. 24, 1S, pp.232-235.
3. Do Manh Hung, Nguyen Quang Bau, Hoang Dinh Trien, Nguyen Thi Nhan (2008), “Calculations of The Nonlinear Absorption Coefficient of a Strong Electromagnetic Wave by Confined Electrons in the Compositional Superlattices”, VNU Journal of Science, Mathematics- Physics, No. 24, 1S, pp.236-239.
4. Nguyen Thi Mai Nhien, Le Thai Hung, Do Manh Hung, Nguyen Quang Bau (2008), “The Parametric Resonance of Confined Acoustic Phonons in Quantum Wells”, VNU Journal of Science, Mathematics-Physics, No. 24, 1S, pp.240-243.
5. Nguyen Quang Bau, Do Manh Hung, Nguyen Bich Ngoc (2009), “The Nonlinear Absorption Coefficient of a Strong Electromagnetic Wave Caused by Confined Electrons in Quantum Wells”, Journal of the Korean Physical
Society, Vol. 54, No. 2, pp.765-773.
6. Do Manh Hung, Nguyen Quang Bau, Nguyen Dinh Nam, Le Thai Hung (2010), “Parametric transformation of confined acoustic phonons and confined optical phonons in quantum wells”, VNU Journal of Science, Mathematics-Physics,Vol. 25, No. 2, pp.123-128.
7. Do Manh Hung, Nguyen Quang Bau (2009), “Investigation of the nonlinear absorption phenomena of a strong electromagnetic wave by confined electrons in the compositional superlattices”, Journal of the Advances in Natural Sciences. Vol. 10, No. 3, pp.317-328
8. Do Manh Hung, Nguyen Quang Bau, Nguyen Van Hieu “The influence of an external magnetic field on the nonlinear absorption coefficient of a strong electromagnetic wave by confined electrons in doping superlattices”, Hội nghị vật lí chất rắn và khoa học vật liệu toàn quốc lần thứ 6, pp.452-457.
9. Do Manh Hung, Nguyen Quang Bau “Investigation of the influence of an external magnetic field on the nonlinear absorption in the quantum well and compositional superlattices”, Hội nghị vật lí chất rắn và khoa học vật liệu toàn quốc lần thứ 6, pp.458-461.
10. Nguyen Quang Bau, and Do Manh Hung (2010), “Calculation of the nonlinear absorption coefficient of a strong electromagnetic wave by confined electrons in Doping Superlatices”, Journal of the USA, Progress In Electromagnetic Research B, Vol. 25, pp.39-52.
11. Nguyen Quang Bau, Do Manh Hung, and Le Thai Hung (2010), “The influences of confined phonons on the nonlinear absorption coefficient of a strong electromagnetic wave by confined electrons in doping superlattices”, Journal of the USA, Progress In Electromagnetic Research Letters, Vol. 15, pp.175-185.
12. Do Manh Hung, Nguyen Quang Bau (2010), “Parametric transformation and parametric resonance of confined acoustic phonons and confined optical phonons in quantum wells”, Journal of theCommunications in Physics, pp.124-134.
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