Time-resolved imaging of latent fingerprints with nanosecond resolution

被引：27

作者：

Seah, LK ^{[1
]}

Dinish, US ^{[1
]}

Ong, SK ^{[1
]}

Chao, ZX ^{[1
]}

Murukeshan, VM ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mech & Prod Engn, Singapore 639798, Singapore

来源：

OPTICS AND LASER TECHNOLOGY | 2004年 / 36卷 / 05期

关键词：

fluorescence lifetime; time-resolved method; time correlated single photon counting (TCSPC); latent fingerprints;

D O I：

10.1016/j.optlastec.2003.10.006

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Imaging of latent fingerprints using time-resolved (TR) method offers a broader platform to eliminate the unwanted background emission. In this paper, a novel TR imaging technique is demonstrated and implemented, which facilitates the detection of latent fingerprints with nanosecond resolution. Simulated experiments were carried out with two overlapping fingerprints treated with two fluorescent powders having different lifetimes in nanosecond range. The dependence of the fluorescence emission intensity in nanosecond resolution of TR imaging is also revealed. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：371 / 376

页数：6