Open AccessSublinear and superlinear photoluminescence from Nd doped anodic aluminum oxide templates loaded with Ag nanowires
Author(s) -
ZhangKai Zhou,
Xiong-Rui Su,
Xiao-Niu Peng,
Li Zhou
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.018028
Subject(s) - photoluminescence , materials science , nanowire , excitation , sublinear function , ion , doping , optoelectronics , polarization (electrochemistry) , wavelength , optics , analytical chemistry (journal) , physics , chemistry , mathematical analysis , mathematics , chromatography , quantum mechanics
We first time prepared Nd(3+) ions doped anodic aluminum oxide (Nd:AAO) templates, reported linear, sublinear and superlinear photoluminescence (PL) from Nd:AAO templates loaded with Ag nanowires in different excitation power regions, in which, the excitation laser with wavelength 805 nm resonantly pumped the population to (4)F5/2 states of Nd(3+), and the radiative transitions (4)F(3/2) -->(4)I(9/2) of Nd(3+) centered at 880 nm. The excitation power dependences of emission polarization ratio and the spectral width were also investigated. The observed nonlinear amplifications of the PL intensity implied strong interaction between randomly-dispersed Nd(3+) ions and ordered-arrayed Ag nanowires in AAO templates.