Resonant Raman scattering inInP/In0.48Ga0.52Pquantum dot structures embedded in a waveguide
| Autor: | Manuel Cardona, M. K. Zundel, T. Ruf, Andrei Sirenko, Karl Eberl |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Physics
Scattering Forward scatter business.industry Exciton Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Polarization (waves) Molecular physics Condensed Matter::Materials Science symbols.namesake Quantum dot symbols Optoelectronics Raman spectroscopy business Raman scattering Excitation |
| Zdroj: | Physical Review B. 58:12633-12636 |
| ISSN: | 1095-3795 0163-1829 |
| DOI: | 10.1103/physrevb.58.12633 |
| Popis: | We report on Raman scattering in nanostructures with InP quantum dots in an ${\mathrm{In}}_{0.48}{\mathrm{Ga}}_{0.52}\mathrm{P}$ matrix embedded in an ${\mathrm{In}}_{0.48}{\mathrm{Al}}_{0.52}\mathrm{P}$ waveguide. At resonant excitation with the quantum dot excitons, broad Raman peaks corresponding to acoustic and optical vibrations were observed. Their polarization was studied for in-plane propagation of the exciting and scattered light in forward scattering geometry. In comparison with the conventional backscattering configuration, the Raman signals are drastically enhanced due to the increased scattering volume. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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