Contribution to the age determination of fingerprint constituents using laser fluorescence spectroscopy and confocal laser scanning microscopy

被引：1

作者：

Barcikowski, S ^{[1
]}

Bunte, J ^{[1
]}

Ostendorf, A ^{[1
]}

Aehnlich, J ^{[1
]}

Herrmann, R ^{[1
]}

机构：

[1] Laser Zentrum Hannover, D-30419 Hannover, Germany

来源：

OPTICAL MATERIALS IN DEFENCE SYSTEMS TECHNOLOGY | 2004年 / 5621卷

关键词：

fingerprint; age determination; laser fluorescence spectroscopy; confocal laser scanning microscopy;

D O I：

10.1117/12.579954

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The development of an instrument measuring the age of a fingerprint could raise the effectiveness and reliability of the dactyloscopy and lower the expenses of unnecessary fingerprint analysis. The purpose of the presented investigation is to determine the compounds in a fingerprint residue, which can be used as a time relevant indicator. The identification of the information carrier inside the secreted substance shall determine the main components, which allow age-related statements. A multiphoton excitation is used to determine the age without degenerating or changing samples in any way, so that the evidence is usable for further examination and documentation. Non-invasive fluorescence analysis on the basis of the surface concentration of fingerprint components is presented.

引用

页码：23 / 30

页数：8