Title :
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
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;
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
