Share Email Print
cover

Proceedings Paper

Fingerprint fluorescence identifying by using the wide-band tunable laser
Author(s): Liu Huang; Jinfeng Zhou; Baolu Yin; Li Wang; Yu Zhao; Huan Liu; Kangyun Ai; Benian Chan
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In this paper, we report the `Ultraviolet-Visible-Infrared Wide Band Tunable Pulse Laser' has been used in identifying the criminal's fingerprint. Different contaminator and secretion of fingerprint in different carrier can be reappeared by illuminating with different wavelength of laser beam. Separating off the laser beam from its induced fluorescence beam with different optical filter, the clear high signal noise ratio fluorescence picture is obtained in a dark background. A series of fluorescence fingerprint picture excited by different wavelength laser light is taken in our Lab. In addition, by using the wide band tunable laser, we test different fluorescence powder or reagent, which sensitivity in different wavelength, a lot of clear fluorescence picture is taken by correspondent wavelength laser beam injection. In this way, the wide band tunable laser offers a wide band of wavelength for develop high sensitivity new fluorescence powder or reagent in chemical field.

Paper Details

Date Published: 30 September 1996
PDF: 4 pages
Proc. SPIE 2889, High-Power Lasers: Solid State, Gas, Excimer, and Other Advanced Lasers, (30 September 1996); doi: 10.1117/12.253275
Show Author Affiliations
Liu Huang, Beijing Polytechnic Univ. (China)
Jinfeng Zhou, Beijing Polytechnic Univ. (China)
Baolu Yin, Beijing Polytechnic Univ. (China)
Li Wang, Beijing Polytechnic Univ. (China)
Yu Zhao, Beijing Polytechnic Univ. (China)
Huan Liu, Dept. of Social Security (China)
Kangyun Ai, Dept. of Social Security (China)
Benian Chan, Dept. of Social Security (China)


Published in SPIE Proceedings Vol. 2889:
High-Power Lasers: Solid State, Gas, Excimer, and Other Advanced Lasers
Sui-Sheng Mei; Keith A. Truesdell, Editor(s)

© SPIE. Terms of Use
Back to Top