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Enhancement of X-ray emission from nanocolloidal gold suspensions under double-pulse excitation
Enhancement of X-ray emission was observed from a micro-jet of a nano-colloidal gold suspension in air under double-pulse excitation of ultrashort (40 fs) near-IR laser pulses. Temporal and spatial overlaps between the pre-pulse and the main pulse were optimized for the highest X-ray emission. The m...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Beilstein-Institut
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6204784/ https://www.ncbi.nlm.nih.gov/pubmed/30416911 http://dx.doi.org/10.3762/bjnano.9.242 |
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author | Hsu, Wei-Hung Masim, Frances Camille P Balčytis, Armandas Huang, Hsin-Hui Yonezawa, Tetsu Kuchmizhak, Aleksandr A Juodkazis, Saulius Hatanaka, Koji |
author_facet | Hsu, Wei-Hung Masim, Frances Camille P Balčytis, Armandas Huang, Hsin-Hui Yonezawa, Tetsu Kuchmizhak, Aleksandr A Juodkazis, Saulius Hatanaka, Koji |
author_sort | Hsu, Wei-Hung |
collection | PubMed |
description | Enhancement of X-ray emission was observed from a micro-jet of a nano-colloidal gold suspension in air under double-pulse excitation of ultrashort (40 fs) near-IR laser pulses. Temporal and spatial overlaps between the pre-pulse and the main pulse were optimized for the highest X-ray emission. The maximum X-ray intensity was obtained at a 1–7 ns delay of the main pulse irradiation after the pre-pulse irradiation with the micro-jet position shifted along the laser beam propagation. It was revealed that the volume around gold nanoparticles where the permittivity is near zero, ε ≈ 0, accounts for the strongest absorption, which leads to the effective enhancements of X-ray emission. |
format | Online Article Text |
id | pubmed-6204784 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Beilstein-Institut |
record_format | MEDLINE/PubMed |
spelling | pubmed-62047842018-11-09 Enhancement of X-ray emission from nanocolloidal gold suspensions under double-pulse excitation Hsu, Wei-Hung Masim, Frances Camille P Balčytis, Armandas Huang, Hsin-Hui Yonezawa, Tetsu Kuchmizhak, Aleksandr A Juodkazis, Saulius Hatanaka, Koji Beilstein J Nanotechnol Full Research Paper Enhancement of X-ray emission was observed from a micro-jet of a nano-colloidal gold suspension in air under double-pulse excitation of ultrashort (40 fs) near-IR laser pulses. Temporal and spatial overlaps between the pre-pulse and the main pulse were optimized for the highest X-ray emission. The maximum X-ray intensity was obtained at a 1–7 ns delay of the main pulse irradiation after the pre-pulse irradiation with the micro-jet position shifted along the laser beam propagation. It was revealed that the volume around gold nanoparticles where the permittivity is near zero, ε ≈ 0, accounts for the strongest absorption, which leads to the effective enhancements of X-ray emission. Beilstein-Institut 2018-10-01 /pmc/articles/PMC6204784/ /pubmed/30416911 http://dx.doi.org/10.3762/bjnano.9.242 Text en Copyright © 2018, Hsu et al. https://creativecommons.org/licenses/by/4.0https://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/4.0). Please note that the reuse, redistribution and reproduction in particular requires that the authors and source are credited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms) |
spellingShingle | Full Research Paper Hsu, Wei-Hung Masim, Frances Camille P Balčytis, Armandas Huang, Hsin-Hui Yonezawa, Tetsu Kuchmizhak, Aleksandr A Juodkazis, Saulius Hatanaka, Koji Enhancement of X-ray emission from nanocolloidal gold suspensions under double-pulse excitation |
title | Enhancement of X-ray emission from nanocolloidal gold suspensions under double-pulse excitation |
title_full | Enhancement of X-ray emission from nanocolloidal gold suspensions under double-pulse excitation |
title_fullStr | Enhancement of X-ray emission from nanocolloidal gold suspensions under double-pulse excitation |
title_full_unstemmed | Enhancement of X-ray emission from nanocolloidal gold suspensions under double-pulse excitation |
title_short | Enhancement of X-ray emission from nanocolloidal gold suspensions under double-pulse excitation |
title_sort | enhancement of x-ray emission from nanocolloidal gold suspensions under double-pulse excitation |
topic | Full Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6204784/ https://www.ncbi.nlm.nih.gov/pubmed/30416911 http://dx.doi.org/10.3762/bjnano.9.242 |
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