EnglishWe theoretically analyze the optical near-field response of a semiconductor macroatom induced by local monolayer fluctuations in the thickness of a semiconductor quantum well, where the large active volume results in a strong enhancement of the light-matter coupling. We find that in the near-field regime bright and dark excitonic states become mixed, opening new channels for the coupling to the electromagnetic field. As a consequence, ultranarrow luminescence lines appear in the simulated two-photon experiments, corresponding to very long lived excitonic states, which undergo Stark shift and Rabi splitting at relatively small field intensities.
Dark-state luminescence of macroatoms at the near field / U., Hohenester; Goldoni, Guido; Molinari, Elisa. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 95(2005), pp. 1-4.
| Data di pubblicazione: | 2005 |
| Titolo: | Dark-state luminescence of macroatoms at the near field |
| Autore/i: | U., Hohenester; Goldoni, Guido; Molinari, Elisa |
| Autore/i UNIMORE: | |
| Rivista: | |
| Volume: | 95 |
| Pagina iniziale: | 1 |
| Pagina finale: | 4 |
| Codice identificativo ISI: | WOS:000233362100051 |
| Codice identificativo Scopus: | 2-s2.0-28844445489 |
| Codice identificativo Pubmed: | 16384169 |
| Citazione: | Dark-state luminescence of macroatoms at the near field / U., Hohenester; Goldoni, Guido; Molinari, Elisa. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 95(2005), pp. 1-4. |
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