Title :
Tip-enhanced upconversion of Er3+/Yb3+:NaYF4 nanoparticles
Author :
Gengxu Chen ; Wu, E. ; Chengjie Ding ; Botao Wu ; Xueting Ci ; Yan Liu ; Youying Rong ; Yingxian Xue ; Heping Zeng
Author_Institution :
State Key Lab. of Precision Spectrosc., East China Normal Univ., Shanghai, China
Abstract :
We demonstrated tip-enhanced upconversion luminescence from a single Er3+/Yb3+:NaYF4 nanoparticle due to plasmonic effect. The gold-coated tip enabled improved reception and transmission of incident electromagnetic fields, which increased both absorption and emission processes.
Keywords :
erbium; gold; nanoparticles; photoluminescence; plasmonics; sodium compounds; ytterbium; yttrium compounds; Au; NaYF4:Er,Yb; absorption process; emission process; gold-coated tip; incident electromagnetic field reception; incident electromagnetic field transmission; nanoparticles; plasmonic effect; tip-enhanced upconversion luminescence; Absorption; Biomedical optical imaging; Electromagnetic fields; Luminescence; Nanoparticles; Optical imaging; Plasmons;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
