Effect of Size on the Saturable Absorption and Reverse Saturable Absorption in Silver Nanoparticle and Ultrafast Dynamics at 400 nm

Saturable absorption and reverse saturable absorption play an important role in the studies of the nonlinear optical properties of nanoparticles at resonant excitation. With this viewpoint, nonlinear absorption processes of chemically prepared silver nanoparticles in deionized water were studied usi...

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Main Authors:	Sandeep Kumar Maurya, Anuradha Rout, Rashid A. Ganeev, Chunlei Guo
Format:	Article
Language:	English
Published:	Hindawi Limited 2019-01-01
Series:	Journal of Nanomaterials
Online Access:	http://dx.doi.org/10.1155/2019/9686913

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spelling	doaj-9aa5e91751e64bb1a796db1cdf0301dc2020-11-25T01:32:13ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292019-01-01201910.1155/2019/96869139686913Effect of Size on the Saturable Absorption and Reverse Saturable Absorption in Silver Nanoparticle and Ultrafast Dynamics at 400 nmSandeep Kumar Maurya0Anuradha Rout1Rashid A. Ganeev2Chunlei Guo3The Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaThe Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaThe Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaThe Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaSaturable absorption and reverse saturable absorption play an important role in the studies of the nonlinear optical properties of nanoparticles at resonant excitation. With this viewpoint, nonlinear absorption processes of chemically prepared silver nanoparticles in deionized water were studied using femtosecond laser pulses at 400 nm. Our nonlinear absorption study shows that there is competition between saturable absorption and two-photon absorption in prepared Ag NPs which depends on the size of the nanoparticles. We have also studied the ultrafast dynamics associated with nanoparticles which also results in the direct correlation between the ultrafast timescale and the size of the nanoparticle. The excitation of Ag NPs at 400 nm has shown the manifestation of damped oscillation which is attributed to the radial breathing mode oscillation due to acoustic vibration.http://dx.doi.org/10.1155/2019/9686913
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Sandeep Kumar Maurya Anuradha Rout Rashid A. Ganeev Chunlei Guo
spellingShingle	Sandeep Kumar Maurya Anuradha Rout Rashid A. Ganeev Chunlei Guo Effect of Size on the Saturable Absorption and Reverse Saturable Absorption in Silver Nanoparticle and Ultrafast Dynamics at 400 nm Journal of Nanomaterials
author_facet	Sandeep Kumar Maurya Anuradha Rout Rashid A. Ganeev Chunlei Guo
author_sort	Sandeep Kumar Maurya
title	Effect of Size on the Saturable Absorption and Reverse Saturable Absorption in Silver Nanoparticle and Ultrafast Dynamics at 400 nm
title_short	Effect of Size on the Saturable Absorption and Reverse Saturable Absorption in Silver Nanoparticle and Ultrafast Dynamics at 400 nm
title_full	Effect of Size on the Saturable Absorption and Reverse Saturable Absorption in Silver Nanoparticle and Ultrafast Dynamics at 400 nm
title_fullStr	Effect of Size on the Saturable Absorption and Reverse Saturable Absorption in Silver Nanoparticle and Ultrafast Dynamics at 400 nm
title_full_unstemmed	Effect of Size on the Saturable Absorption and Reverse Saturable Absorption in Silver Nanoparticle and Ultrafast Dynamics at 400 nm
title_sort	effect of size on the saturable absorption and reverse saturable absorption in silver nanoparticle and ultrafast dynamics at 400 nm
publisher	Hindawi Limited
series	Journal of Nanomaterials
issn	1687-4110 1687-4129
publishDate	2019-01-01
description	Saturable absorption and reverse saturable absorption play an important role in the studies of the nonlinear optical properties of nanoparticles at resonant excitation. With this viewpoint, nonlinear absorption processes of chemically prepared silver nanoparticles in deionized water were studied using femtosecond laser pulses at 400 nm. Our nonlinear absorption study shows that there is competition between saturable absorption and two-photon absorption in prepared Ag NPs which depends on the size of the nanoparticles. We have also studied the ultrafast dynamics associated with nanoparticles which also results in the direct correlation between the ultrafast timescale and the size of the nanoparticle. The excitation of Ag NPs at 400 nm has shown the manifestation of damped oscillation which is attributed to the radial breathing mode oscillation due to acoustic vibration.
url	http://dx.doi.org/10.1155/2019/9686913
work_keys_str_mv	AT sandeepkumarmaurya effectofsizeonthesaturableabsorptionandreversesaturableabsorptioninsilvernanoparticleandultrafastdynamicsat400nm AT anuradharout effectofsizeonthesaturableabsorptionandreversesaturableabsorptioninsilvernanoparticleandultrafastdynamicsat400nm AT rashidaganeev effectofsizeonthesaturableabsorptionandreversesaturableabsorptioninsilvernanoparticleandultrafastdynamicsat400nm AT chunleiguo effectofsizeonthesaturableabsorptionandreversesaturableabsorptioninsilvernanoparticleandultrafastdynamicsat400nm
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Effect of Size on the Saturable Absorption and Reverse Saturable Absorption in Silver Nanoparticle and Ultrafast Dynamics at 400 nm

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