Some new types of Rose Bengal dye-encapsulated cinnamon nanoparticles (RB-CNPs) were prepared via the laser ablation in liquid (PLAL) method at various laser fluences (LFs) and characterized. The influence of different LF (1.7–14.2 Jcm⁻²) on the absorption, fluorescence and color chromaticity properties of these RB-CNPs was evaluated. Both fluorescence and absorption spectra of the RB-CNPs displayed two prominent peaks at approximately 439 nm and 571 nm, and 267 nm and 546 nm, respectively due to the presence of phenolic acids in CNPs and structural units in RB dye. The fluorescence lifetime and quantum yield were in the range of 6.12–6.911 ns and 0.341–0.61%. Furthermore, these RB-CNPs coated fiber-optic sensor showed very fast response when exposed to ethylene glycol medium. It is established that the proposed optically active and stable RB-CNPs can be advantageous designing low-cost fiber-optic sensors useful for environmental tracers and optical probes.

通过液体激光烧蚀 (PLAL) 方法在各种激光能量密度 (LFs) 下制备了一些新型的玫瑰红染料包裹的肉桂纳米粒子 (RB-CNPs) 并对其进行了表征。不同 LF (1.7–14.2 Jcm ^-2) 对这些 RB-CNP 的吸收、荧光和颜色色度特性进行了评估。由于 CNP 中存在酚酸和 RB 染料中存在结构单元，RB-CNP 的荧光和吸收光谱分别在大约 439 nm 和 571 nm 以及 267 nm 和 546 nm 处显示出两个突出的峰。荧光寿命和量子产率在 6.12-6.911 ns 和 0.341-0.61% 的范围内。此外，这些 RB-CNPs 涂层光纤传感器在暴露于乙二醇介质时表现出非常快的响应。已经确定，所提出的光学活性和稳定的 RB-CNP 可以有利地设计用于环境示踪剂和光学探针的低成本光纤传感器。