A three-dimensional (3D) plasmonic substrate was developed using gold nanorods (GNRs) onto a tapered fiber surface using optical tweezing. To determine the efficacy of the substrate, Raman spectra of two toxic chemicals Rhodamine 6G (R6G) and Crystal Violet (CV) were studied. The “dip and dry” method was used to adsorb the chemicals along the tapered fiber length. The minimum concentration detected for CV and R6G was 10⁻¹² M. We have reported the characteristics and unique features of the manufactured substrate.

中文翻译：

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三维等离子体基底作为表面增强拉曼光谱 (SERS) 工具，用于检测痕量化学物质

使用光镊在锥形光纤表面上使用金纳米棒 (GNR) 开发了三维 (3D) 等离子体衬底。为了确定底物的功效，研究了两种有毒化学品罗丹明 6G (R6G) 和结晶紫 (CV) 的拉曼光谱。使用“浸渍和干燥”方法沿着锥形纤维长度吸附化学物质。检测到的CV和R6G的最小浓度为10 ^-12  M。我们已经报告了所制造的基质的特征和独特特征。