Tunable Nonlinear Optical Properties of Zno-Cu Nanocomposites due to the Impact of Self Assembly

  • Unique Paper ID: 155920
  • Volume: 9
  • Issue: 2
  • PageNo: 235-238
  • Abstract:
  • In the present work, we compare the nonlinear optical properties of ZnO-Cu colloid and self-assembled film by z scan technique. ZnO and Zno-Cu colloid clearly exhibit a negative nonlinear index of refraction at 532 nm and the observed nonlinear refraction is attributed to two-photon absorption followed by weak free-carrier absorption and interband absorption mechanisms. Zno-Cu colloid exhibit reverse saturable absorption whereas the self-assembled film exhibits saturable absorption. These different nonlinear characteristics in the self-assembled films can be mainly attributed to the saturation of linear absorption of the ZnO defect states. ZnO–Cu is a potential nanocomposite material for the light emission and for the development of nonlinear optical devices with a relatively small limiting threshold.

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Copyright © 2025 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{155920,
        author = {Dr. Litty Mathew Irimpan},
        title = {Tunable Nonlinear Optical Properties of Zno-Cu Nanocomposites due to the Impact of Self Assembly},
        journal = {International Journal of Innovative Research in Technology},
        year = {},
        volume = {9},
        number = {2},
        pages = {235-238},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=155920},
        abstract = {In the present work, we compare the nonlinear optical properties of ZnO-Cu colloid and self-assembled film by z scan technique. ZnO and Zno-Cu colloid clearly exhibit a negative nonlinear index of refraction at 532 nm and the observed nonlinear refraction is attributed to two-photon absorption followed by weak free-carrier absorption and interband absorption mechanisms. Zno-Cu colloid exhibit reverse saturable absorption whereas the self-assembled film exhibits saturable absorption. These different nonlinear characteristics in the self-assembled films can be mainly attributed to the saturation of linear absorption of the ZnO defect states. ZnO–Cu is a potential nanocomposite material for the light emission and for the development of nonlinear optical devices with a relatively small limiting threshold.},
        keywords = {Nanocomposites, Self-assembly, ZnO-Cu, z-scan, Saturable absorption, Reverse saturable absorption},
        month = {},
        }

Cite This Article

  • ISSN: 2349-6002
  • Volume: 9
  • Issue: 2
  • PageNo: 235-238

Tunable Nonlinear Optical Properties of Zno-Cu Nanocomposites due to the Impact of Self Assembly

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