Using Z-scan technique to measure the nonlinear optical properties of PMMA/ZnO nanocomposites

Haider Mohammed Shanshool, Muhammad Yahaya, Wan Mahmood Mat Yunus, Ibtisam Yahya Abdullah

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The study of nonlinear optical properties of polymer nanocomposites has been given increasing attention due its application in laser, communication and data storage technology. There is a need to enhance the understanding of all photonics technologies. In the current work, PMMA-ZnO nanocomposites as foils and as thin films have been successfully prepared. Casting method and spin coating were used to prepare them respectively. Nanocomposites were prepared by mixing ZnO nanoparticles with polymethyl methacrylate (PMMA) as the polymer matrix. Different contents of ZnO nanoparticles were used as the filler in the nanocomposites. The absorbance spectra of the samples were obtained. The linear absorption coefficient was calculated. The nonlinear refractive index and nonlinear absorption coefficient were investigated using a single beam Z-scan technique. A Q-switched Nd-YAG pulsed laser (532 nm, 7 ns, 5 Hz) was used as a light source. Both thin film’s and foil’s samples showed peak absorption at 375 nm and increasing absorption with ZnO nanoparticles concentration. The nonlinear refractive index was in the order of 10-11 cm2/W for thin film samples and 10-12 cm2 /W for foil’s samples with a negative sign. In contrast, the nonlinear absorption coefficient is in the order of 10-6 cm/W and 10-7 cm /W for thin film and foil respectively. The figures of merit W and T were calculated in order to evaluate the suitability of the samples as optical switching device .However; they unsatisfied the requirements of optical switching devices but they can be considered as an excellent candidate for optical limiting.

Original languageEnglish
Pages (from-to)33-38
Number of pages6
JournalJurnal Teknologi
Volume78
Issue number3
DOIs
Publication statusPublished - 1 Mar 2016

Fingerprint

Polymethyl methacrylates
Metal foil
Nanocomposites
Optical properties
Thin films
Nanoparticles
Refractive index
Optical links
Spin coating
Pulsed lasers
Polymer matrix
Photonics
Light sources
Fillers
Casting
Data storage equipment
Polymers

Keywords

  • Nanocomposite
  • Nonlinear absorption coefficient
  • Nonlinear refractive index
  • PMMA/ ZnO

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Using Z-scan technique to measure the nonlinear optical properties of PMMA/ZnO nanocomposites. / Shanshool, Haider Mohammed; Yahaya, Muhammad; Yunus, Wan Mahmood Mat; Abdullah, Ibtisam Yahya.

In: Jurnal Teknologi, Vol. 78, No. 3, 01.03.2016, p. 33-38.

Research output: Contribution to journalArticle

Shanshool, Haider Mohammed ; Yahaya, Muhammad ; Yunus, Wan Mahmood Mat ; Abdullah, Ibtisam Yahya. / Using Z-scan technique to measure the nonlinear optical properties of PMMA/ZnO nanocomposites. In: Jurnal Teknologi. 2016 ; Vol. 78, No. 3. pp. 33-38.
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