Effect of photonic bandgap on luminescence from silicon nanocrystals
2007 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 32, no 13, 1878-1880 p.Article in journal (Refereed) Published
The modification of the luminescence of silicon nanocrystals experiencing the effect of a photonic bandgap in a 2D photonic crystal was investigated. The time-integrated photoluminescence spectra detected in the plane of the photonic crystal revealed a dip in the light emission corresponding to the wavelength of the bandgap, whose position changes according to the geometry of the prepatterned pillar array. The calculated emission pattern for a pointlike dipole placed in such a structure suggests an inhibition of the spontaneous emission rate at certain directions as a physical reason for the observed modification of luminescence.
Place, publisher, year, edition, pages
2007. Vol. 32, no 13, 1878-1880 p.
quantum-dot, wave-guide, emission, crystals, photoluminescence, nanocavity, gap
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-16825DOI: 10.1364/OL.32.001878ISI: 000248348300038ScopusID: 2-s2.0-39749163553OAI: oai:DiVA.org:kth-16825DiVA: diva2:334868
This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=ol-32-13-1878. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
QC 20100525 201112082012-01-132010-08-052012-01-13Bibliographically approved