Title :
Three-dimensional orientation sensors by defocused imaging of gold nanorods in the near IR region
Author :
Pei Xu ; Tao Li ; Qiang Li ; Xiao-jun Chen ; Yi Xu ; Li-Jun Wu
Author_Institution :
Lab. of Photonic Inf. Technol., South China Normal Univ., Guangzhou, China
Abstract :
Gold nanorods(AuNRs) excited at 800 nm produced strong two-photon luminescence (TPL) intensities anisotropy, which correlate with their three-dimensional spatial orientations. Here we report a novel orientation sensor by defocused imaging(DI) of single AuNR through an ordinary wide-field optical microscope. It opens up exciting possibilities for using DI in the near IR region for biological imaging.
Keywords :
luminescence; nanorods; optical images; optical microscopy; Au; biological imaging; defocused imaging; gold nanorods; near infrared region; strong two-photon luminescence; three-dimensional orientation sensor; three-dimensional spatial orientation; wavelength 800 nm; wide-field optical microscope;
Conference_Titel :
Communications and Photonics Conference (ACP), 2012 Asia
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4673-6274-0
