Revealing the nature of morphological changes in carbon nanotube-polymer saturable absorber under high-power laser irradiation

Abstract Composites of single-walled carbon nanotubes (SWNTs) and water-soluble polymers (WSP) are the focus of significant worldwide research due to a number of applications in biotechnology and photonics, particularly for ultrashort pulse generation. Despite the unique possibility of constructing...

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Autores principales:	Maria Chernysheva, Mohammed Al Araimi, Graham A. Rance, Nicola J. Weston, Baogui Shi, Sayah Saied, John L. Sullivan, Nicholas Marsh, Aleksey Rozhin
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f9f498d235d74076a710b7fbb32294ac
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spelling	oai:doaj.org-article:f9f498d235d74076a710b7fbb32294ac2021-12-02T12:33:00ZRevealing the nature of morphological changes in carbon nanotube-polymer saturable absorber under high-power laser irradiation10.1038/s41598-018-24734-z2045-2322https://doaj.org/article/f9f498d235d74076a710b7fbb32294ac2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-24734-zhttps://doaj.org/toc/2045-2322Abstract Composites of single-walled carbon nanotubes (SWNTs) and water-soluble polymers (WSP) are the focus of significant worldwide research due to a number of applications in biotechnology and photonics, particularly for ultrashort pulse generation. Despite the unique possibility of constructing non-linear optical SWNT-WSP composites with controlled optical properties, their thermal degradation threshold and limit of operational power remain unexplored. In this study, we discover the nature of the SWNT-polyvinyl alcohol (PVA) film thermal degradation and evaluate the modification of the composite properties under continuous high-power ultrashort pulse laser operation. Using high-precision optical microscopy and micro-Raman spectroscopy, we have examined SWNT-PVA films before and after continuous laser radiation exposure (up to 40 hours) with a maximum optical fluence of 2.3 mJ·cm−2. We demonstrate that high-intensity laser radiation results in measurable changes in the composition and morphology of the SWNT-PVA film due to efficient heat transfer from SWNTs to the polymer matrix. The saturable absorber modification does not affect the laser operational performance. We anticipate our work to be a starting point for more sophisticated research aimed at the enhancement of SWNT-PVA films fabrication for their operation as reliable saturable absorbers in high-power ultrafast lasers.Maria ChernyshevaMohammed Al AraimiGraham A. RanceNicola J. WestonBaogui ShiSayah SaiedJohn L. SullivanNicholas MarshAleksey RozhinNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Maria Chernysheva Mohammed Al Araimi Graham A. Rance Nicola J. Weston Baogui Shi Sayah Saied John L. Sullivan Nicholas Marsh Aleksey Rozhin Revealing the nature of morphological changes in carbon nanotube-polymer saturable absorber under high-power laser irradiation
description	Abstract Composites of single-walled carbon nanotubes (SWNTs) and water-soluble polymers (WSP) are the focus of significant worldwide research due to a number of applications in biotechnology and photonics, particularly for ultrashort pulse generation. Despite the unique possibility of constructing non-linear optical SWNT-WSP composites with controlled optical properties, their thermal degradation threshold and limit of operational power remain unexplored. In this study, we discover the nature of the SWNT-polyvinyl alcohol (PVA) film thermal degradation and evaluate the modification of the composite properties under continuous high-power ultrashort pulse laser operation. Using high-precision optical microscopy and micro-Raman spectroscopy, we have examined SWNT-PVA films before and after continuous laser radiation exposure (up to 40 hours) with a maximum optical fluence of 2.3 mJ·cm−2. We demonstrate that high-intensity laser radiation results in measurable changes in the composition and morphology of the SWNT-PVA film due to efficient heat transfer from SWNTs to the polymer matrix. The saturable absorber modification does not affect the laser operational performance. We anticipate our work to be a starting point for more sophisticated research aimed at the enhancement of SWNT-PVA films fabrication for their operation as reliable saturable absorbers in high-power ultrafast lasers.
format	article
author	Maria Chernysheva Mohammed Al Araimi Graham A. Rance Nicola J. Weston Baogui Shi Sayah Saied John L. Sullivan Nicholas Marsh Aleksey Rozhin
author_facet	Maria Chernysheva Mohammed Al Araimi Graham A. Rance Nicola J. Weston Baogui Shi Sayah Saied John L. Sullivan Nicholas Marsh Aleksey Rozhin
author_sort	Maria Chernysheva
title	Revealing the nature of morphological changes in carbon nanotube-polymer saturable absorber under high-power laser irradiation
title_short	Revealing the nature of morphological changes in carbon nanotube-polymer saturable absorber under high-power laser irradiation
title_full	Revealing the nature of morphological changes in carbon nanotube-polymer saturable absorber under high-power laser irradiation
title_fullStr	Revealing the nature of morphological changes in carbon nanotube-polymer saturable absorber under high-power laser irradiation
title_full_unstemmed	Revealing the nature of morphological changes in carbon nanotube-polymer saturable absorber under high-power laser irradiation
title_sort	revealing the nature of morphological changes in carbon nanotube-polymer saturable absorber under high-power laser irradiation
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/f9f498d235d74076a710b7fbb32294ac
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Revealing the nature of morphological changes in carbon nanotube-polymer saturable absorber under high-power laser irradiation

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