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Conferences > ACPC > 2012 > AF4B > AF4B.29

Three-dimensional Orientation Sensors by Defocused Imaging of Gold Nanorods in the near IR region

Pei Xu, Tao Li, Qiang Li, Xiao-Jun Chen, Yi Xu, and Li-Jun Wu

Open Access Open Access

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.

© 2012 Optical Society of America

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