Combined effects of magnetic and electric fields on the interband optical transitions in InAs/InP quantum wire |
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| Institution: | 1. Department of Physics, GTN Arts College, Dindigul 624005, India;2. P.G. and Research Department of Physics, Government Arts College, Melur 625106, Madurai, India;3. Department of Chemical Engineering, College of Engineering, Kyung Hee University, 1732 Deogyeong-daero, Gihung, Yongin, Gyeonggi 446-701, South Korea;1. Research Institute for Applied Physics and Astronomy, University of Tabriz, Tabriz, Iran;2. Young Researchers Club, Shahre Kord Branch, Islamic Azad University, Shahre Kord, Iran;1. School of Astronautics, Harbin Institute of Technology, PO Box 137, Harbin 150001, PR China;2. College of Mechanical Engineering, Beijing University of Technology, Beijing 100124, PR China |
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| Abstract: | Combined effects of magnetic and electric fields on the confined exciton in an InAs1−xPx/InP (x=0.2) quantum well wire are investigated taking into account the geometrical confinement effect. Variational formulism, within the frame work of effective mass approximation, is applied to obtain the exciton binding energy. The second order harmonic generation and the optical gain are carried out using compact density method. The strain effects are included with the confinement potential in the Hamiltonian. The energy difference of the ground and the first excited state is found in the presence of magnetic and electric fields taking into the consideration of spatial confinement effect. The result shows that the optical properties are more influenced taking into account the effects of geometrical confinement, magnetic field and electric field. It is shown that the telecommunication wavelength can be achieved with the suitable doping barrier material with the wire material and the external perturbations. |
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| Keywords: | Quantum well wire Exciton Optical gain |
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