Study of non-linear optical properties of center and edge δ-doped multiple quantum wells
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| Format: | Artículo científico |
| Sprache: | en |
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Sociedad Mexicana de Física A.C.
2018
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| _version_ | 1876479259316322304 |
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| author | M. Gambhir |
| author_facet | M. Gambhir |
| contents | Study of non-linear optical properties of center and edge δ-doped multiple quantum wells M. Gambhir V. Prasad Física, Astronomía y Matemáticas laser delta doping magnetic field Multiple quantum well refractive index changes In the present paper, the linear and non-linear optical properties of GaAs/AlGaAs with on-center and on-edge delta doping are studied within the effective mass approximation. The delta potential is analytically modeled within each quantum well potential to obtain the energy levels and the corresponding wave functions using the robust finite difference method. The linear and non-linear optical absorption coefficients and changes in the refractive index are studied in the presence of a static magnetic and a periodic laser field using the density matrix approach. The obtained results show that the position of resonances and the amplitude of the optical absorption coefficients and the refractive index changes can be modified by varying the magnetic field and strength and position of doping potential. Lastly, an increase of the optical intensity appreciably changes the total absorption coefficient, as well as the total refractive index changes. Obtained results are important for the design of various electronic components such as high-power FETs and infrared photonic devices based on the intersubband transition of electrons in δ-doped MQWs. 2018 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57082915001 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.5 Vol.64 |
| format | Artículo científico |
| id | redalyc_57082915001 |
| institution | Redalyc |
| language | en |
| publishDate | 2018 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | Study of non-linear optical properties of center and edge δ-doped multiple quantum wells M. Gambhir Física, Astronomía y Matemáticas laser delta doping magnetic field Multiple quantum well refractive index changes Study of non-linear optical properties of center and edge δ-doped multiple quantum wells M. Gambhir V. Prasad Física, Astronomía y Matemáticas laser delta doping magnetic field Multiple quantum well refractive index changes In the present paper, the linear and non-linear optical properties of GaAs/AlGaAs with on-center and on-edge delta doping are studied within the effective mass approximation. The delta potential is analytically modeled within each quantum well potential to obtain the energy levels and the corresponding wave functions using the robust finite difference method. The linear and non-linear optical absorption coefficients and changes in the refractive index are studied in the presence of a static magnetic and a periodic laser field using the density matrix approach. The obtained results show that the position of resonances and the amplitude of the optical absorption coefficients and the refractive index changes can be modified by varying the magnetic field and strength and position of doping potential. Lastly, an increase of the optical intensity appreciably changes the total absorption coefficient, as well as the total refractive index changes. Obtained results are important for the design of various electronic components such as high-power FETs and infrared photonic devices based on the intersubband transition of electrons in δ-doped MQWs. 2018 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57082915001 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.5 Vol.64 |
| title | Study of non-linear optical properties of center and edge δ-doped multiple quantum wells |
| topic | Física, Astronomía y Matemáticas laser delta doping magnetic field Multiple quantum well refractive index changes |
| url | https://www.redalyc.org/articulo.oa?id=57082915001 |