Electric currents induced by twisted light in quantum rings
We theoretically investigate the generation of electric currents in quantum rings resulting from the optical excitation with twisted light. Our model describes the kinetics of electrons in a two-band model of a semiconductor-based mesoscopic quantum ring coupled to light having orbital angular momen...
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2009
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10944087_v17_n22_p20465_Quinteiro http://hdl.handle.net/20.500.12110/paper_10944087_v17_n22_p20465_Quinteiro |
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paper:paper_10944087_v17_n22_p20465_Quinteiro |
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paper:paper_10944087_v17_n22_p20465_Quinteiro2023-06-08T16:06:51Z Electric currents induced by twisted light in quantum rings Electric currents Electric fields Magnetization Nanorings Bulk semiconductors Induced magnetizations Material parameter Optical control Orbital angular momentum Photon drag effects Quantum ring Two-band model Electric excitation article computer simulation electromagnetic field light quantum theory radiation scattering rotation theoretical model Computer Simulation Electromagnetic Fields Light Models, Theoretical Quantum Theory Rotation Scattering, Radiation We theoretically investigate the generation of electric currents in quantum rings resulting from the optical excitation with twisted light. Our model describes the kinetics of electrons in a two-band model of a semiconductor-based mesoscopic quantum ring coupled to light having orbital angular momentum (twisted light). We find the analytical solution, which exhibits a circular photon-drag effect and an induced magnetization, suggesting that this system is the circular analog of that of a bulk semiconductor excited by plane waves. For realistic values of the electric field and material parameters, the computed electric current can be as large as juA; from an applied perspective, this opens new possibilities to the optical control of the magnetization in semiconductors. © 2009 Optical Society of America. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10944087_v17_n22_p20465_Quinteiro http://hdl.handle.net/20.500.12110/paper_10944087_v17_n22_p20465_Quinteiro |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Electric currents Electric fields Magnetization Nanorings Bulk semiconductors Induced magnetizations Material parameter Optical control Orbital angular momentum Photon drag effects Quantum ring Two-band model Electric excitation article computer simulation electromagnetic field light quantum theory radiation scattering rotation theoretical model Computer Simulation Electromagnetic Fields Light Models, Theoretical Quantum Theory Rotation Scattering, Radiation |
| spellingShingle |
Electric currents Electric fields Magnetization Nanorings Bulk semiconductors Induced magnetizations Material parameter Optical control Orbital angular momentum Photon drag effects Quantum ring Two-band model Electric excitation article computer simulation electromagnetic field light quantum theory radiation scattering rotation theoretical model Computer Simulation Electromagnetic Fields Light Models, Theoretical Quantum Theory Rotation Scattering, Radiation Electric currents induced by twisted light in quantum rings |
| topic_facet |
Electric currents Electric fields Magnetization Nanorings Bulk semiconductors Induced magnetizations Material parameter Optical control Orbital angular momentum Photon drag effects Quantum ring Two-band model Electric excitation article computer simulation electromagnetic field light quantum theory radiation scattering rotation theoretical model Computer Simulation Electromagnetic Fields Light Models, Theoretical Quantum Theory Rotation Scattering, Radiation |
| description |
We theoretically investigate the generation of electric currents in quantum rings resulting from the optical excitation with twisted light. Our model describes the kinetics of electrons in a two-band model of a semiconductor-based mesoscopic quantum ring coupled to light having orbital angular momentum (twisted light). We find the analytical solution, which exhibits a circular photon-drag effect and an induced magnetization, suggesting that this system is the circular analog of that of a bulk semiconductor excited by plane waves. For realistic values of the electric field and material parameters, the computed electric current can be as large as juA; from an applied perspective, this opens new possibilities to the optical control of the magnetization in semiconductors. © 2009 Optical Society of America. |
| title |
Electric currents induced by twisted light in quantum rings |
| title_short |
Electric currents induced by twisted light in quantum rings |
| title_full |
Electric currents induced by twisted light in quantum rings |
| title_fullStr |
Electric currents induced by twisted light in quantum rings |
| title_full_unstemmed |
Electric currents induced by twisted light in quantum rings |
| title_sort |
electric currents induced by twisted light in quantum rings |
| publishDate |
2009 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10944087_v17_n22_p20465_Quinteiro http://hdl.handle.net/20.500.12110/paper_10944087_v17_n22_p20465_Quinteiro |
| _version_ |
1768542952469037056 |