Formation of Porous Structure with Subspot Size under the Irradiation of Picosecond Laser Pulses
Joint Authors
Liu, Bin
Wang, Wenjun
Jiang, Gedong
Mei, Xuesong
Wang, Kedian
Wang, Jiuhong
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-23
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
A study was presented in this paper on porous structure with microsize holes significantly smaller than laser spot on the stainless steel 304 target surface induced by a picosecond Nd:van regenerative amplified laser, operating at 1064 nm.
The target surface variations were studied in air ambience.
The estimated surface damage threshold was 0.15 J/cm2.
The target specific surface changes and phenomena observed supported a complementary study on the formation and growth of the subspot size pit holes on metal surface with dependence of laser pulse number of 50–1000 and fluences of 0.8 and 1.6 J/cm2.
Two kinds of porous structures were presented: periodic holes are formed from Coulomb Explosion during locally spatial modulated ablation, and random holes are formed from the burst of bubbles in overheated liquid during phase explosion.
It can be concluded that it is effective to fabricate a large metal surface area of porous structure by laser scanning regime.
Generally, it is also difficult for ultrashort laser to fabricate the microporous structures compared with traditional methods.
These porous structures potentially have a number of important applications in nanotechnology, industry, nuclear complex, and so forth.
American Psychological Association (APA)
Liu, Bin& Wang, Wenjun& Jiang, Gedong& Mei, Xuesong& Wang, Kedian& Wang, Jiuhong. 2013. Formation of Porous Structure with Subspot Size under the Irradiation of Picosecond Laser Pulses. Journal of Nanomaterials،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1007500
Modern Language Association (MLA)
Liu, Bin…[et al.]. Formation of Porous Structure with Subspot Size under the Irradiation of Picosecond Laser Pulses. Journal of Nanomaterials No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-1007500
American Medical Association (AMA)
Liu, Bin& Wang, Wenjun& Jiang, Gedong& Mei, Xuesong& Wang, Kedian& Wang, Jiuhong. Formation of Porous Structure with Subspot Size under the Irradiation of Picosecond Laser Pulses. Journal of Nanomaterials. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1007500
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1007500