Lasing From Water Solution of Rhodamine 6G/Gold Nanoparticles: Impact of SiO2-Coating on Metal Surface
2012 (English)In: IEEE Journal of Quantum Electronics, ISSN 0018-9197, Vol. 48, no 9, 1220-1226 p.Article in journal (Refereed) Published
Gold nanoparticles embedded in an optical gain material, particularly in a water solution of Rhodamine 6G, used in dye lasers can both increase and damp dye flourescence, thus changing the laser output intensity. Simultaneously, such nanoparticles influence the gain material's resistance against photobleaching. In this paper, we report our study on the impact of the SiO2 coating of nanoparticles on the enhancement or quenching and photobleaching of the fluorescence. The investigation demonstrates a noticeable improvement of the gain material's photostability compared to uncoated gold nanoparticles when silicon dioxide coating is implemented.
Place, publisher, year, edition, pages
2012. Vol. 48, no 9, 1220-1226 p.
Fluorescence quenching, gold nanoparticles, photostability, Rhodamine 6G, silica coating
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-96499DOI: 10.1109/JQE.2012.2207947ISI: 000306912800001OAI: oai:DiVA.org:kth-96499DiVA: diva2:530915
FunderSwedish Research CouncilEU, European Research Council, NMP4-SL-2008-214281
QC 20120827. Updated from submitted to published.2012-06-052012-06-052012-08-27Bibliographically approved