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Nonlinear optical absorption of Ti3C2 quantum dots regulated by Ag nanoparticles

JIA LIU1, YABIN SHAO2, SHIYI ZUO1, YACHEN GAO1,*

Affiliation

  1. Electronic Engineering College, Heilongjiang University, Harbin, 150080, China
  2. School of Jia Yang, Zhejiang Shuren University, Shaoxing, 312028, China

Abstract

The nonlinear absorption of Ti3C2 quantum dots (QDs), Ag nanoparticles and Ti3C2 QDs-Ag nanocomposites were studied by using nanosecond Z-scan technique. It was found that, Ti3C2 QDs and Ag nanoparticles exhibit saturation absorption (SA), while the Ti3C2 QDs-Ag nanocomposites can exhibit SA or reverse saturation absorption (RSA) depending laser intensity. The investigation indicates that adding of Ag nanoparticles can regulate the nonlinear absorption of Ti3C2 QDs, even make it change from SA to RSA. The origin of nonlinear absorption and transformation was also analyzed and discussed in terms of plasmon bleaching.

Keywords

Ti3C2 quantum dots, Ti3C2 QDs-Ag nanocomposites, Nonlinear absorption, Z-scan.

Citation

JIA LIU, YABIN SHAO, SHIYI ZUO, YACHEN GAO, Nonlinear optical absorption of Ti3C2 quantum dots regulated by Ag nanoparticles, Optoelectronics and Advanced Materials - Rapid Communications, 16, 5-6, May-June 2022, pp.248-252 (2022).

Submitted at: Jan. 5, 2022

Accepted at: June 6, 2022