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. 2023 Sep;33(5):1761-1776.
doi: 10.1007/s10895-023-03189-0. Epub 2023 Feb 24.

The Preparation and Nonlinear Properties Study of a Mixture of Polyurethane and Neutral Red Dye Solution

Kh A Al-Timimy  1 , H A Sultan  2 , Qusay M A Hassan  3 , C A Emshary  2 , Ali Qassim Abdullah  1 , Emad Abdul Reaz Arebi  1
Affiliations

The Preparation and Nonlinear Properties Study of a Mixture of Polyurethane and Neutral Red Dye Solution

Kh A Al-Timimy et al. J Fluoresc. 2023 Sep.

Abstract

A mixture of polyurethane (PU) and neutral red (NR) dye solution is prepared. The nonlinear optical properties of the mixture of PU with NR dye solution are studied using a 473 nm laser beam of continuous fashion. The nonlinear refraction index of prepared material is determined via diffraction patterns and Z-scan. The diffraction patterns are calculated based on the Fresnel-Kirchhoff integral. Optical limiting of the prepared material is tested. All-optical switching occur in the sample using two low power visible laser beams.

Keywords: All-optical swiching; Diffraction ring patterns; Fresnel-Kirchhoff integral; Polyurethane; Z-scan.

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