The effect of hydrostatic pressure,temperature and magnetic field on the nonlinear optical properties of asymmetrical Gaussian potential quantum wells |
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| Institution: | 1. School of New Energy and Electronic Engineering, Yancheng Teachers University, Yancheng 224051, China;2. Department of Physics, College of Physics and Electronic Engineering, Guangzhou University, Guangzhou 510006, China;3. Department of Physics, Guangxi Medical University, Nanning, Guangxi 530021, China;1. Instituto de Alta Investigación, Universidad de Tarapacá, Casilla 7D, Arica, Chile;2. Department of Solid State Physics, Yerevan State University, Alex Manoogian 1, 0025 Yerevan, Armenia;3. National University of Architecture and Construction of Armenia, Teryan 105, 0009 Yerevan, Armenia;4. SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom;1. Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, Shandong, China;2. School of Materials Science and Engineering, University of Jinan, Jinan 250022, Shandong, China;1. Instituut-Lorentz, Universiteit Leiden, P.O. Box 9506, 2300 RA Leiden, The Netherlands;2. Department of Physics, Lancaster University, LA1 4YB Lancaster, United Kingdom;1. Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid, Spain;2. Departamento de Física de Materiales, Facultad de Ciencias Físicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain |
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| Abstract: | In this study, simultaneous effects of hydrostatic pressure, temperature and magnetic field on the linear and nonlinear intersubband optical absorption coefficients (OACs) and refractive index changes (RICs) in asymmetrical Gaussian potential quantum wells (QWs) are theoretically investigated within the framework of the compact-density-matrix approach and iterative method. The energy eigenvalues and their corresponding eigenfunctions of the system are calculated with the differential method. Our results show that the position and the magnitude of the resonant peaks of the nonlinear OACs and RICs depend strongly on the hydrostatic pressure, temperature and external magnetic field. This gives a new degree of freedom in various device applications based on the intersubband transitions of electrons. |
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| Keywords: | Optical properties Quantum wells Hydrostatic pressure Temperature Magnetic field |
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