Photonic defect states in chains of coupled microresonators - art. no. 155313

Citation
G. Guttroff et al., Photonic defect states in chains of coupled microresonators - art. no. 155313, PHYS REV B, 6415(15), 2001, pp. 5313
Citations number
32
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
0163-1829 → ACNP
Volume
6415
Issue
15
Year of publication
2001
Database
ISI
SICI code
0163-1829(20011015)6415:15<5313:PDSICO>2.0.ZU;2-U
Abstract
Defects in one-dimensional photonic crystals have been studied by angle-res olved photoluminescence spectroscopy from which we obtain a comprehensive p icture of the energies and field distributions of modes in the photon band gaps. The structures have been fabricated by coupling semiconductor microca vities that exhibit an index confinement of light in all three directions t o linear chains. The defects are obtained by varying the size of one of the microcavities in the chain. Time-resolved spectroscopy demonstrates that t he decay rate of the spontaneous emission of quantum dots into a defect mod e is considerably enhanced (Purcell effect).