Enhanced third-order nonlinear optical susceptibilities of α-FeOOH nanorods
作者： Baohua Zhu , Jiayu Zhang , Lijun Guo , Yuanchun Qi , Yanbao Zhao
DOI: 10.1016/J.OPTMAT.2010.04.007
关键词: Nonlinear optics 、 Quantum dot 、 Materials science 、 Nanorod 、 Potential well 、 Local field 、 Nonlinear system 、 Z-scan technique 、 Condensed matter physics 、 Colloid
摘要: Abstract α-FeOOH nanorods (NRs) with diameters varying from 12 nm to 25 nm were prepared by colloid chemistry method, and their third-order nonlinear susceptibilities (χ(3)) investigated Z-scan technique. Both the real part imaginary of χ(3) increase increasing NRs’ size in near resonant transparency region. NRs diameter can reach 7.7 × 10−11 esu region, which is almost 16 times that corresponding bulk. The quantum confinement effect local field make dominant contribution enhancement.
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