Tailoring photon emission patterns in nanostructures
| Autor: | Wei-Dong Chu, Wei Zhang, Yan Xie, Suqing Duan, Shi-Fang Guo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Quenching
Physics Quantum Physics Basis (linear algebra) Condensed Matter - Mesoscale and Nanoscale Physics Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences General Physics and Astronomy Molecular physics Symmetry (physics) Quantum dot Harmonics Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Harmonic Emission spectrum Time domain Quantum Physics (quant-ph) Astrophysics::Galaxy Astrophysics |
| Popis: | We investigate the photon emission in coupled quantum dots based on symmetry considerations. With the help of a new theorem we proved, we reveal the origin of the various emission patterns, which is the combinative symmetry in the time domain and spectrum domain. We are able to tailor the emission patterns and obtain emission spectra with odd harmonics only, even harmonics only, both odd and even harmonic components, or even the quenching of all components. These interesting emission patterns can be obtained in experiments by careful design of the nanostructures, which are of many applications in optical-electric nanodevices. 5 pages, 4 figures |
| Databáze: | OpenAIRE |
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