Study on the Development of Latent Fingerprints by UV Laser

Chinese Journal of Forensic Sciences ›› 2010 ›› Issue (4): 20-22.

Study on the Development of Latent Fingerprints by UV Laser

CAI Neng-bin,HUANG Xiao-chun,WEN Si-bo(Shanghai Key Laboratory of Criminal Scene Evidence,Institute of Forensic Science,Shanghai Public Security Bureau,Shanghai 200083,China)

Published:2010-04-30 Online:2023-04-03

紫外激光技术显现潜在指印的研究

蔡能斌;黄晓春;温思博;

上海市公安局物证鉴定中心上海市现场物证重点实验室;

Abstract

Abstract: Objective To develop new techniques of revealing latent fingerprints.Methods UV Laser was used to stimulate fingerprints to fluorescence.Results Fingerprints with bright ridge under dark background were developed.Conclusion The UV Laser technique is suitable for developing latent fingerprints on paper and other permeable objects.

Key words: ultraviolet laser, stimulated emission, photoluminescence, latent fingerprint

摘要： 目的研究显现潜在指印的新技术。方法用自主研发的266nm短波紫外线输出的ND:YAG激光器作为激发光源激发渗透性客体表面的潜在指印,使指印发出荧光。结果能有效显现出亮纹线暗背景的潜在指印发光图像。结论利用该紫外激光技术可以显现纸张等渗透性客体表面的潜在指印。

关键词: 紫外激光, 受激辐射, 光致发光, 潜在指印

CAI Neng-bin, HUANG Xiao-chun, WEN Si-bo(Shanghai Key Laboratory of Criminal Scene Evidence, Institute of Forensic Science, Shanghai Public Security Bureau, Shanghai , China). Study on the Development of Latent Fingerprints by UV Laser[J]. Chinese Journal of Forensic Sciences, 2010(4): 20-22.

蔡能斌, 黄晓春, 温思博, . 紫外激光技术显现潜在指印的研究[J]. 中国司法鉴定, 2010(4): 20-22.

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