Microstructure and multiphoton luminescence of Au nanocrystals prepared by using glancing deposition method |
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| Authors: | Xiongrui Su Zhangkai Zhou Qiang Fu Hao Song |
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| Institution: | a Department of Physics, Wuhan University, Wuhan 430072, People's Republic of China
b Key Laboratory of Acoustic and Photonic Materials and Devices of Ministry of Education, Wuhan University, Wuhan 430072, People's Republic of China |
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| Abstract: | Au crystal columns embedded in SiO2 with an average length of 480 nm and diameter of 30 nm were prepared by radio frequency co-sputtering technique with glancing angle. The photoluminescence (PL) of the Au-SiO2 crystal column film exhibited polarization characteristic. With an increase of the laser power, the slope ∂ log(PL intensity)/∂ log(laser power) changed from 2 to 3, which indicated that the PL of Au-SiO2 crystal columns were induced by two- and three-photon absorption, respectively. |
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| Keywords: | 78 67 &minus n 78 55 &minus m 78 68 +m 79 20 &minus m |
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