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초강력 레이저 과학 연구단
초강력 레이저과학 연구단
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Nonlinear absorption and optical damage threshold of carbon-based nanostructured material embedded in a protein

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Title
Nonlinear absorption and optical damage threshold of carbon-based nanostructured material embedded in a protein
Author(s)
Janulewicz, KA; Hapiddin, A; Joseph, D; Geckeler, KE; Jae Hee Sung; Nickles, PV
Publication Date
2014-12
Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, v.117, no.4, pp.1811 - 1819
Publisher
SPRINGER
Abstract
Physical processes in laser–matter interaction used to be determined by generation of fast electrons resulting from efficient conversion of the absorbed laser radiation. Composite materials offer the possibility to control the absorption by choice of the host material and dopants. Reported here strong absorption of ultrashort laser pulse in a composite carbon-based nanomaterial including single-walled carbon nanotubes (SWCNTs) or multilayer graphene was measured in the intensity range between 1012 and 1016 W cm-2. A protein (lysozyme) was used as the host. The maximum absorption of femtosecond laser pulse has reached 92–96 %. The optical damage thresholds of the coatings were registered at an intensity of (1.1 ± 0.5) 9 1013 W cm-2 for the embedded SWCNTs and at (3.4 ± 0.3) 9 1013 W cm-2 for the embedded graphene. Encapsulated variant of the dispersed nanomaterial was investigated as well. It was found that supernatant protein in the coating material tends to dominate the absorption process, independently of the embedded nanomaterial. The opposite was observed for the encapsulated material.
URI
https://pr.ibs.re.kr/handle/8788114/842
ISSN
0947-8396
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
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