Measurement of Two-Photon Absorption Cross Section of Metal Ions by a Mass Sedimentation Approach

The photo-reduction of metal ions in solution induced by femtosecond laser is an important and novel method for fabricating three-dimensional metal microstructures. However, the nonlinear absorption cross section of metal ions remains unknown because its measurement is difficult. In the present stud...

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Autores principales: Ma, Zhuo-Chen, Chen, Qi-Dai, Han, Bing, Liu, Xue-Qing, Song, Jun-Feng, Sun, Hong-Bo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4675988/
https://www.ncbi.nlm.nih.gov/pubmed/26657990
http://dx.doi.org/10.1038/srep17712
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author Ma, Zhuo-Chen
Chen, Qi-Dai
Han, Bing
Liu, Xue-Qing
Song, Jun-Feng
Sun, Hong-Bo
author_facet Ma, Zhuo-Chen
Chen, Qi-Dai
Han, Bing
Liu, Xue-Qing
Song, Jun-Feng
Sun, Hong-Bo
author_sort Ma, Zhuo-Chen
collection PubMed
description The photo-reduction of metal ions in solution induced by femtosecond laser is an important and novel method for fabricating three-dimensional metal microstructures. However, the nonlinear absorption cross section of metal ions remains unknown because its measurement is difficult. In the present study, a method based on Two-Photon Excited Sedimentation (TPES) is proposed to measure the two-photon absorption cross section (TPACS) of metal ions in solution. The power-squared dependence of the amount of sediment on the excitation intensity was confirmed, revealing that 800 nm femtosecond laser induced reduction of metal ions was a two photon absorption process. We believe that the proposed method may be applied to measure the TPACS of several metal ions, thereby opening a new avenue towards future analysis of two-photon absorption materials.
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spelling pubmed-46759882015-12-16 Measurement of Two-Photon Absorption Cross Section of Metal Ions by a Mass Sedimentation Approach Ma, Zhuo-Chen Chen, Qi-Dai Han, Bing Liu, Xue-Qing Song, Jun-Feng Sun, Hong-Bo Sci Rep Article The photo-reduction of metal ions in solution induced by femtosecond laser is an important and novel method for fabricating three-dimensional metal microstructures. However, the nonlinear absorption cross section of metal ions remains unknown because its measurement is difficult. In the present study, a method based on Two-Photon Excited Sedimentation (TPES) is proposed to measure the two-photon absorption cross section (TPACS) of metal ions in solution. The power-squared dependence of the amount of sediment on the excitation intensity was confirmed, revealing that 800 nm femtosecond laser induced reduction of metal ions was a two photon absorption process. We believe that the proposed method may be applied to measure the TPACS of several metal ions, thereby opening a new avenue towards future analysis of two-photon absorption materials. Nature Publishing Group 2015-12-11 /pmc/articles/PMC4675988/ /pubmed/26657990 http://dx.doi.org/10.1038/srep17712 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Ma, Zhuo-Chen
Chen, Qi-Dai
Han, Bing
Liu, Xue-Qing
Song, Jun-Feng
Sun, Hong-Bo
Measurement of Two-Photon Absorption Cross Section of Metal Ions by a Mass Sedimentation Approach
title Measurement of Two-Photon Absorption Cross Section of Metal Ions by a Mass Sedimentation Approach
title_full Measurement of Two-Photon Absorption Cross Section of Metal Ions by a Mass Sedimentation Approach
title_fullStr Measurement of Two-Photon Absorption Cross Section of Metal Ions by a Mass Sedimentation Approach
title_full_unstemmed Measurement of Two-Photon Absorption Cross Section of Metal Ions by a Mass Sedimentation Approach
title_short Measurement of Two-Photon Absorption Cross Section of Metal Ions by a Mass Sedimentation Approach
title_sort measurement of two-photon absorption cross section of metal ions by a mass sedimentation approach
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4675988/
https://www.ncbi.nlm.nih.gov/pubmed/26657990
http://dx.doi.org/10.1038/srep17712
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