Nonlinear optical limiting effect of graphene dispersions at 1064  nm

Abstract

We study the nonlinear optical limiting effect of graphene dispersions in ethanol and acetone at a wavelength of 1064 nm. The nonlinear optical limiting effect of graphene dispersion under three different linear transmittances (about 70%, 80%, and 90%), two different thicknesses (1 and 3 cm), and two different solvents (ethanol and acetone) are measured. The influences of concentration, thickness, and solvent on the nonlinear optical limiting effect of the graphene dispersion are analyzed. The experimental results show that the concentration and solution thicknesses have great influence on the optical limiting ability of graphene dispersions. The graphene dispersions with ethanol and acetone as solvents can be used to achieve excellent nonlinear optical limiting effects. The optical limiting ability of the graphene dispersion in acetone is better than that of the graphene dispersion in ethanol.

Nonlinear optical limiting effect of graphene dispersions at 3.8 µm

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Enhanced Energy Transfer between Nitrogen‐Vacancy Centers and 2D MoS2 Films Accurately Fabricated by Atomic Layer Deposition

“…In addition, FRET has been demonstrated between NV centers and organic dye molecules, graphene. [21,22] 2D materials (graphene, [23] MoS 2 , [24] WS 2 [25] ) have unique mechanical, optical, thermal, and other properties, which have important significance to the development and application of quantum technology. Nowadays, the regulation of the NV center characteristics by 2D materials is mainly achieved by FRET.…”

Mechanism of optical limiting in metalloporphyrins under visible continuous radiation

“…3 The performance of optical limiters is mainly dependent on the properties of the nonlinear optical (NLO) materials. [4][5][6][7] So far, many NLO materials with excellent properties have been reported, 4,7,8 including both inorganic and organic candidates. The inorganic materials, such as inorganic crystals and semiconductor materials, 5,9 are the commonly used materials in the early stage due to their high damage threshold and large optical nonlinearity.…”