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揭露隐藏的印记:用于隐藏指纹检测的光学刺激发光

Andrea Pinna¹, Sofia Rocca¹, Stefania Porcu¹

¹Department of Physics, University of Cagliari, S.p. no. 8 Km 0700, 09042 Monserrato, CA, Italy.

|December 7, 2023

概括

使用新型Ba2SiO4矩阵的光学刺激发光 (OSL) 有效地可视化了在具有挑战性的表面上隐藏的指纹. 这一突破通过消除发光背景以获得更清晰的证据,提高了法医检测. 关键词:隐藏的指纹,光学刺激的发光,法医技术.

科学领域:

法医科学法医科学法医科学
材料科学材料科学材料科学
光电学是指光电子产品.

背景情况:

隐藏指纹检测的传统方法在各种表面上面临局限性.
发光背景往往会掩盖指纹细节,导致遗漏或忽视的证据.
新技术对于提高指纹检测的灵敏度和适用性至关重要.

研究的目的:

引入和评估用于隐藏指纹可视化的光学刺激发光 (OSL).
为了证明与酸 (Ba2SiO4:Eu2+, Dy3+) 配合剂的酸矩阵在指纹开发中的有效性.
为了克服发光背景在法医分析中所带来的挑战.

主要方法:

在OSL中使用了Ba2SiO4矩阵,与欧 (Eu2+) 和 (Dy3+) 联合合.
将OSL技术应用于各种具有挑战性的基板:薄塑料袋,刚性带,薄,玻璃片.
评估了该技术提高光学成像和消除背景发光的能力.

主要成果:

在多个表面上成功可视化了隐藏的指纹,包括塑料,带,片和玻璃.
OSL技术有效地抑制了发光背景,显著提高了图像清晰度.
与传统方法相比,在具有挑战性的环境中表现出优越的性能.

结论:

配合化Ba2SiO4矩阵的光学刺激发光 (OSL) 是一种用于隐藏指纹检测的强大新方法.
这种技术提供了增强的可视化,克服了现有方法的局限性,特别是在发光表面.
代表了法医科学的重大进步,使得更有效的指纹证据恢复.

关键词:

应用光学应用光学在 Ba2SiO4 中.指纹检测指纹检测器法医应用程序法医应用程序光学刺激的发光效应是光学刺激的发光效应.

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