Maria Chernysheva
Revealing the nature of morphological changes in carbon nanotube-polymer saturable absorber under high-power laser irradiation
Chernysheva, Maria; Al Alraimi, Mohammed; Rance, Graham A.; Weston, Nicola J.; Shi, Baogui; Saied, Sayah; Sullivan, John L.; Marsh, Nicholas; Rozhin, Aleksey
Authors
Mohammed Al Alraimi
GRAHAM RANCE Graham.Rance@nottingham.ac.uk
Senior Research Fellow
Nicola J. Weston
Baogui Shi
Sayah Saied
John L. Sullivan
Nicholas Marsh
Aleksey Rozhin
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, 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 x cm2. 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.
Citation
Chernysheva, M., Al Alraimi, M., Rance, G. A., Weston, N. J., Shi, B., Saied, S., …Rozhin, A. (2018). Revealing the nature of morphological changes in carbon nanotube-polymer saturable absorber under high-power laser irradiation. Scientific Reports, 8, https://doi.org/10.1038/s41598-018-24734-z
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 20, 2018 |
Publication Date | May 10, 2018 |
Deposit Date | Jul 3, 2018 |
Publicly Available Date | Mar 29, 2024 |
Journal | Scientific Reports |
Electronic ISSN | 2045-2322 |
Publisher | Nature Publishing Group |
Peer Reviewed | Peer Reviewed |
Volume | 8 |
DOI | https://doi.org/10.1038/s41598-018-24734-z |
Public URL | https://nottingham-repository.worktribe.com/output/931483 |
Publisher URL | https://www.nature.com/articles/s41598-018-24734-z |
Files
Scientific Reports 2018.pdf
(365 Kb)
PDF
Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0
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