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Proceedings Paper

Shape dependence of nonlinear optical activities of tungsten oxide nanostructures
Author(s): Dongdong Huang; Chan Zheng; Wei Li; Wenzhe Chen; Li Huang; Ling Chen; Xiukai Wu
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Paper Abstract

he understanding of shape dependence of nonlinear optical (NLO) behaviors is crucial for designing of an effective component and device. In this work, nanostructured tungsten oxide (WO3) in shapes of nanospheres, nanowires, and nanoplates have been prepared using a facile hydrothermal method by controlling the molar ratio of the precursors. Field emission scanning electron microscopy (FE-SEM) clearly confirmed the morphology characteristic of the three nanostructures. X-ray diffractometry (XRD) identified the nanospheres were well consistent with octahedral WO3·0.33H2O while nanowires and nanoplates can be well indexed to the hexagonal structure of WO3. Meanwhile, the WO3 nanostructures displayed shape dependent linear optical behaviors. The NLO properties were measured at 532 nm using open aperture (OA) Z-scan technique. The two-photon coefficients of WO3 nanospheres, nanowires and nanoplates were calculated to be 9.8×10-11 m/W, 1.44×10-10 m/W, 2.02×10-10 m/W, respectively. The nanoplates exhibited the best NLO performance while the nanospheres present the weakest one. The result implies that the NLO activities can be effectively tailored by morphology control.

Paper Details

Date Published: 29 March 2019
PDF: 8 pages
Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 1104616 (29 March 2019); doi: 10.1117/12.2522362
Show Author Affiliations
Dongdong Huang, Fujian Univ. of Technology (China)
Chan Zheng, Fujian Univ. of Technology (China)
Wei Li, Fujian Univ. of Technology (China)
Wenzhe Chen, Fujian Univ. of Technology (China)
Li Huang, Fujian Univ. of Technology (China)
Ling Chen, Fujian Univ. of Technology (China)
Xiukai Wu, Fujian Univ. of Technology (China)

Published in SPIE Proceedings Vol. 11046:
Fifth International Symposium on Laser Interaction with Matter
YiJun Zhao, Editor(s)

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