Tunable nonlinear optical enhancement of α-FeOOH nanorods/RGO composites

High-quality α-FeOOH nanorods/reduced graphene oxide (RGO) composites were prepared by a facile hydrothermal method. Crystal structure and optical properties of the composites were characterized by XRD, SEM, TEM, FT-IR, Raman, UV–vis, PL. These results of characterization showed that the composites...

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Autores principales:	Jiawen Wu, Fangfang Wang, Xinting Zhao, Baohua Zhu, Yuzong Gu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/9281be4b5b994080b4558d2a787c560f
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spelling	oai:doaj.org-article:9281be4b5b994080b4558d2a787c560f2021-11-28T04:31:11ZTunable nonlinear optical enhancement of α-FeOOH nanorods/RGO composites2211-379710.1016/j.rinp.2021.105056https://doaj.org/article/9281be4b5b994080b4558d2a787c560f2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2211379721010445https://doaj.org/toc/2211-3797High-quality α-FeOOH nanorods/reduced graphene oxide (RGO) composites were prepared by a facile hydrothermal method. Crystal structure and optical properties of the composites were characterized by XRD, SEM, TEM, FT-IR, Raman, UV–vis, PL. These results of characterization showed that the composites were successfully prepared. The third-order nonlinear optical (NLO) properties of the composites were investigated by Z-scan technique under 30 ps laser at 532 nm wavelength with 10 Hz repetition. The composites had larger third-order NLO susceptibility compared to pure α-FeOOH nanorods and RGO nanosheets. The enhancement of NLO performance benefited from synergistic effect of local field effect and charge transfer between α-FeOOH nanorods and RGO. Moreover, the composite with the α-FeOOH nanorods:RGO weight ratio of 2:1 (S3) showed the most robust NLO response. Comparing with RGO, the value of third-order NLO susceptibility χ(3) of S3 was increased by around 60 times and the saturation intensity Isat was nearly decreased by 6 times as the modulation depth M highly increased, respectively. The improved NLO property of α-FeOOH nanorods/RGO composite indicated its possible application in optical switches, mode lockers and other NLO devices.Jiawen WuFangfang WangXinting ZhaoBaohua ZhuYuzong GuElsevierarticlePhysicsQC1-999ENResults in Physics, Vol 31, Iss , Pp 105056- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Jiawen Wu Fangfang Wang Xinting Zhao Baohua Zhu Yuzong Gu Tunable nonlinear optical enhancement of α-FeOOH nanorods/RGO composites
description	High-quality α-FeOOH nanorods/reduced graphene oxide (RGO) composites were prepared by a facile hydrothermal method. Crystal structure and optical properties of the composites were characterized by XRD, SEM, TEM, FT-IR, Raman, UV–vis, PL. These results of characterization showed that the composites were successfully prepared. The third-order nonlinear optical (NLO) properties of the composites were investigated by Z-scan technique under 30 ps laser at 532 nm wavelength with 10 Hz repetition. The composites had larger third-order NLO susceptibility compared to pure α-FeOOH nanorods and RGO nanosheets. The enhancement of NLO performance benefited from synergistic effect of local field effect and charge transfer between α-FeOOH nanorods and RGO. Moreover, the composite with the α-FeOOH nanorods:RGO weight ratio of 2:1 (S3) showed the most robust NLO response. Comparing with RGO, the value of third-order NLO susceptibility χ(3) of S3 was increased by around 60 times and the saturation intensity Isat was nearly decreased by 6 times as the modulation depth M highly increased, respectively. The improved NLO property of α-FeOOH nanorods/RGO composite indicated its possible application in optical switches, mode lockers and other NLO devices.
format	article
author	Jiawen Wu Fangfang Wang Xinting Zhao Baohua Zhu Yuzong Gu
author_facet	Jiawen Wu Fangfang Wang Xinting Zhao Baohua Zhu Yuzong Gu
author_sort	Jiawen Wu
title	Tunable nonlinear optical enhancement of α-FeOOH nanorods/RGO composites
title_short	Tunable nonlinear optical enhancement of α-FeOOH nanorods/RGO composites
title_full	Tunable nonlinear optical enhancement of α-FeOOH nanorods/RGO composites
title_fullStr	Tunable nonlinear optical enhancement of α-FeOOH nanorods/RGO composites
title_full_unstemmed	Tunable nonlinear optical enhancement of α-FeOOH nanorods/RGO composites
title_sort	tunable nonlinear optical enhancement of α-feooh nanorods/rgo composites
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/9281be4b5b994080b4558d2a787c560f
work_keys_str_mv	AT jiawenwu tunablenonlinearopticalenhancementofafeoohnanorodsrgocomposites AT fangfangwang tunablenonlinearopticalenhancementofafeoohnanorodsrgocomposites AT xintingzhao tunablenonlinearopticalenhancementofafeoohnanorodsrgocomposites AT baohuazhu tunablenonlinearopticalenhancementofafeoohnanorodsrgocomposites AT yuzonggu tunablenonlinearopticalenhancementofafeoohnanorodsrgocomposites
_version_	1718408393477062656

Tunable nonlinear optical enhancement of α-FeOOH nanorods/RGO composites

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