Nonlinear optical properties of near-infrared region Ag(2)S quantum dots pumped by nanosecond laser pulses

This study investigates near-infrared region Ag(2)S quantum dots (QDs) and their nonlinear optical response under 532 nm nanosecond laser pulses. Our experimental result shows that nonlinear transmission is reduced from 0.084 to 0.04. The observed narrowing behavior of the output pulse width shows s...

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Detalles Bibliográficos
Autores principales: Liu, Li-wei, Hu, Si-yi, Dou, Yin-ping, Liu, Tian-hang, Lin, Jing-quan, Wang, Yue
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2015
Materias:
Full Research Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4578410/
https://www.ncbi.nlm.nih.gov/pubmed/26425430
http://dx.doi.org/10.3762/bjnano.6.182
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author Liu, Li-wei
Hu, Si-yi
Dou, Yin-ping
Liu, Tian-hang
Lin, Jing-quan
Wang, Yue
author_facet Liu, Li-wei
Hu, Si-yi
Dou, Yin-ping
Liu, Tian-hang
Lin, Jing-quan
Wang, Yue
author_sort Liu, Li-wei
collection PubMed
description This study investigates near-infrared region Ag(2)S quantum dots (QDs) and their nonlinear optical response under 532 nm nanosecond laser pulses. Our experimental result shows that nonlinear transmission is reduced from 0.084 to 0.04. The observed narrowing behavior of the output pulse width shows superior optical limiting. We discuss the physical mechanisms responsible for the nonlinear optical response of the QDs. The average size of the nanocrystals was 5.5 nm. Our results suggest the possibility of using these Ag(2)S QDs for photoelectric, biosensor, optical ranging, and self-adaptive technologies.
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spelling pubmed-45784102015-09-30 Nonlinear optical properties of near-infrared region Ag(2)S quantum dots pumped by nanosecond laser pulses Liu, Li-wei Hu, Si-yi Dou, Yin-ping Liu, Tian-hang Lin, Jing-quan Wang, Yue Beilstein J Nanotechnol Full Research Paper This study investigates near-infrared region Ag(2)S quantum dots (QDs) and their nonlinear optical response under 532 nm nanosecond laser pulses. Our experimental result shows that nonlinear transmission is reduced from 0.084 to 0.04. The observed narrowing behavior of the output pulse width shows superior optical limiting. We discuss the physical mechanisms responsible for the nonlinear optical response of the QDs. The average size of the nanocrystals was 5.5 nm. Our results suggest the possibility of using these Ag(2)S QDs for photoelectric, biosensor, optical ranging, and self-adaptive technologies. Beilstein-Institut 2015-08-24 /pmc/articles/PMC4578410/ /pubmed/26425430 http://dx.doi.org/10.3762/bjnano.6.182 Text en Copyright © 2015, Liu et al. https://creativecommons.org/licenses/by/2.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms)
spellingShingle Full Research Paper
Liu, Li-wei
Hu, Si-yi
Dou, Yin-ping
Liu, Tian-hang
Lin, Jing-quan
Wang, Yue
Nonlinear optical properties of near-infrared region Ag(2)S quantum dots pumped by nanosecond laser pulses
title Nonlinear optical properties of near-infrared region Ag(2)S quantum dots pumped by nanosecond laser pulses
title_full Nonlinear optical properties of near-infrared region Ag(2)S quantum dots pumped by nanosecond laser pulses
title_fullStr Nonlinear optical properties of near-infrared region Ag(2)S quantum dots pumped by nanosecond laser pulses
title_full_unstemmed Nonlinear optical properties of near-infrared region Ag(2)S quantum dots pumped by nanosecond laser pulses
title_short Nonlinear optical properties of near-infrared region Ag(2)S quantum dots pumped by nanosecond laser pulses
title_sort nonlinear optical properties of near-infrared region ag(2)s quantum dots pumped by nanosecond laser pulses
topic Full Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4578410/
https://www.ncbi.nlm.nih.gov/pubmed/26425430
http://dx.doi.org/10.3762/bjnano.6.182
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