In:
physica status solidi (b), Wiley, Vol. 249, No. 3 ( 2012-03), p. 449-454
Kurzfassung:
We report the realization and the optical study of nitride photonic resonators dedicated to the blue and UV spectral range. Microdisks and photonic crystal (PC) cavities are investigated containing GaN/AlN quantum dots (QDs) embedded in an AlN waveguide. The PC cavities are fabricated through the conformal growth of nitrides on a patterned Si substrate, and present delocalized and confined cavity modes in their microphotoluminescence spectra, that are compared to simulations. A large quality factor of 1800 is reached for a modified L3 cavity. In the case of microdisks, which are fabricated through a classical top‐down approach, the series of whispering gallery modes (WGMs) with large quality factors (up to 7300) are observed and analysed. magnified image Scanning electron micrograph and microphotoluminescence spectrum of a 2 µm AlN microdisk embedding GaN QDs; the WGMs appear as sharp peaks, with quality factors up to 5000.
Materialart:
Online-Ressource
ISSN:
0370-1972
,
1521-3951
DOI:
10.1002/pssb.201100226
Sprache:
Englisch
Verlag:
Wiley
Publikationsdatum:
2012
ZDB Id:
208851-4
ZDB Id:
1481096-7
