Nonlinear optical rectification of hydrogenic impurity in a disk-like parabolic quantum dot: The role of applied magnetic field |
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| Institution: | 1. Photonics group, Research Institute for Applied Physics and Astronomy (RIAPA), University of Tabriz, 51665-163 Tabriz, Iran;2. Department of Solid State Physics, Faculty of Physics, University of Tabriz, Tabriz, Iran;1. Department of Physics, Payame Noor University, P.O.Box 19395-3697, Tehran, Iran;2. Young Researchers and Elite Club, Shiraz Branch, Islamic Azad University, Shiraz, Iran;1. Grupo de Materia Condensada-UdeA, Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia;2. Facultad de Ciencias, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, CP 62209 Cuernavaca, Morelos, Mexico;1. Department of Physics, Fatima College, Madurai 625018, India;2. Department of Physics, Government Arts College, Melur 625109, Madurai, India;3. Department of Chemical Engineering, College of Engineering, Kyung Hee University, 1732 Deogyeong-daero, Gihung, Yongin, Gyeonggi 446-701, South Korea;1. Cumhuriyet University, Physics Department, 58140 Sivas, Turkey;2. Dokuz Eylül University, Physics Department, 35160 Buca, ?zmir, Turkey;3. Facultad de Ciencias, Universidad Autónoma del Estado de Morelos, Ave. Universidad 1001, CP 62209, Cuernavaca, Morelos, Mexico;4. Grupo de Materia Condensada-UdeA, Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia |
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| Abstract: | We report a detailed theoretical study of the effect of combined electric and magnetic field on the nonlinear optical rectification of a hydrogenic impurity, confined in a two dimensional disk-like quantum dot, with parabolic confinement potential. We use the compact density matrix formalism and iterative method to obtain nonlinear optical rectification and absorption coefficients. To find energy levels and wave functions, we employ exact diagonalization method in the effective mass approximation. As main result, we found that the transition energy from ground to first excited state redshifts with increasing the magnetic field while blueshifts for transition from ground to second excited state, moreover, for former transition, nonlinear optical rectification coefficient decreases with increasing magnetic field in contrast to that occurs for latter one. |
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| Keywords: | Parabolic quantum dot Nonlinear optical rectification Hydrogenic impurity |
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