Frequency up-converted lasing of nanocrystal quantum-dots in microbeads

Author

Zhang, Chunfeng ; Zhang, Fan ; Xu, Jian ; Wang, Y. Andrew

Author_Institution

Dept. of Eng. Sci. & Mech., Penn State Univ., University Park, PA, USA

fYear

2009

fDate

2-4 June 2009

Firstpage

1

Lastpage

2

Abstract

Frequency up-converted lasing emission at visible wavelengths was observed from nanocrystal-infiltrated silica microbeads, which has been explained by the coupling of the two-photon pumped biexciton gain to the whispering gallery mode in a spherical microcavity.

Keywords

II-VI semiconductors; biexcitons; cadmium compounds; microcavity lasers; nanostructured materials; optical frequency conversion; optical pumping; semiconductor lasers; semiconductor quantum dots; silicon compounds; two-photon processes; whispering gallery modes; wide band gap semiconductors; CdSe-CdS-SiO₂; SiO₂; biexciton gain; frequency up-conversion; lasing emission; microbeads; nanocrystal quantum-dots; spherical microcavity; two-photon pumping; whispering gallery mode; Biomedical optical imaging; Frequency; Microcavities; Nanocrystals; Optical coupling; Optical pumping; Optical resonators; Optical sensors; Quantum dots; Silicon compounds; 140.1590; 190.4180;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on

Conference_Location

Baltimore, MD

Print_ISBN

978-1-55752-869-8

Electronic_ISBN

978-1-55752-869-8

Type

conf

Filename

5225464