Nonlinear Optical Spectra of Intersubband Transitions in a CdSe/ZnS/CdSe/SiO2 Spherical Quantum Dot
| Autor: | D Stojanović, R Kostić |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Materials science
Light Biomedical Engineering Shell (structure) Physics::Optics Bioengineering 02 engineering and technology Photon energy 01 natural sciences Molecular physics Spectral line Condensed Matter::Materials Science Quantum Dots 0103 physical sciences Cadmium Compounds Scattering Radiation Computer Simulation General Materials Science Selenium Compounds Absorption (electromagnetic radiation) Wave function 010302 applied physics Scattering General Chemistry Silicon Dioxide Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology Condensed Matter Physics Core (optical fiber) Energy Transfer Models Chemical Nonlinear Dynamics Zinc Compounds Quantum dot 0210 nano-technology |
| Zdroj: | Journal of Nanoscience and Nanotechnology. 12:8528-8536 |
| ISSN: | 1533-4880 |
| DOI: | 10.1166/jnn.2012.6842 |
| Popis: | In this paper the electronic spectra and optical properties of one-electron spherical quantum dot (QD) are presented. QD is composed of CdSe core surrounded by ZnS shell (barrier) CdSe shell and finally by medium of very high potential barrier (SiO2) compared to CdSe. The energy eigenvalues of s, p and d states and corresponding wave functions were calculated using effective mass approximation. We have calculated oscillator strengths and the linear and third-order nonlinear intersubband optical absorption coefficients as function of the QD dimension, incident photon energy and incident optical intensity for the 1s-1p, 1p-1d and 1p-2s transitions. |
| Databáze: | OpenAIRE |
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