Nonlinear absorption enhancement of AuNPs based polymer nanocomposites

•AuNPs monodispersed colloid was synthetized by laser ablation and fragmentation.•Synthesis of AuNPs was carried out in liquid monomer Isodecyl acrylate.•Obtained colloid was used for polymer nanocomposites preparation by UV-photocuring.•Nonlinear absorption of polymer nanocomposites was measured by...

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Bibliographic Details
Published in:Optics and laser technology 2018-07, Vol.103, p.396-400
Main Authors: Zulina, Natalia A., Baranov, Mikhail A., Kniazev, Kirill I., Kaliabin, Viacheslav O., Denisyuk, Igor Yu, Achor, Susan U., Sitnikova, Vera E.
Format: Article
Language:English
Subjects:
Absorptivity
Aperture
Au nanoparticles
Chemical synthesis
Gold
Laser ablation
Nanocomposites
Nanomaterials
Nanoparticles
Photocuring
Photopolymer
Pulsed laser ablation
Ultraviolet radiation
Z-scan
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Summary:•AuNPs monodispersed colloid was synthetized by laser ablation and fragmentation.•Synthesis of AuNPs was carried out in liquid monomer Isodecyl acrylate.•Obtained colloid was used for polymer nanocomposites preparation by UV-photocuring.•Nonlinear absorption of polymer nanocomposites was measured by z-scan technique. Au nanoparticles (AuNPs) based polymer nanocomposites with high nonlinear absorption coefficient were synthesized by UV-photocuring. AuNPs were synthesized by laser ablation method in liquid monomer isodecyl acrylate (IDA). In this research, two colloids with 70 nm and 20 nm nanoparticles average sizes were studied. Size control was performed with SEM and STEM. Prepared nanomaterials exhibit strong third-order nonlinear optical responses under CW laser irradiation at 532 nm, which was estimated by using z-scan technique performed with open aperture. It was found experimentally that nonlinear absorption β is almost twice higher for nanocomposites with smaller AuNPs.
ISSN:0030-3992
1879-2545
DOI:10.1016/j.optlastec.2018.01.050