HIGH EXTRACTION EFFICIENCY OF SPONTANEOUS EMISSION FROM SLABS OF PHOTONIC CRYSTALS

Authors
FAN SH VILLENEUVE PR JOANNOPOULOS JD SCHUBERT EF
Citation
Sh. Fan et al., HIGH EXTRACTION EFFICIENCY OF SPONTANEOUS EMISSION FROM SLABS OF PHOTONIC CRYSTALS, Physical review letters, 78(17), 1997, pp. 3294-3297
Citations number
18
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
78
Issue
17
Year of publication
1997
Pages
3294 - 3297
Database
ISI
SICI code
0031-9007(1997)78:17<3294:HEEOSE>2.0.ZU;2-R
Abstract
A thin slab of two-dimensional photonic crystal is shown to alter dras tically the radiation pattern of spontaneous emission. More specifical ly, by eliminating all guided modes at the transition frequencies, spo ntaneous emission can be coupled entirely to free space modes, resulti ng in a greatly enhanced extraction efficiency. Such structures might provide a solution to the long-standing problem of poor light extracti on from high refractive-index semiconductors in light-emitting diodes.