Volume 30, Issue 2 (April 1985)

    Comparison of Argon-Ion, Copper-Vapor, and Frequency-Doubled Neodymium: Yttrium Aluminum Garnet (ND:YAG) Lasers for Latent Fingerprint Development

    (Received 5 September 1984; accepted 24 September 1984)

    CODEN: JFSOAD

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    Abstract

    Argon-ion. copper-vapor, and frequency-doubled neodymium: yttrium aluminum garnet (Nd:YAG) lasers have been examined for efficiency in latent fingerprint detection. All three types of laser are found to be effective. Argon-ion lasers have the greatest power and range of useful wavelengths while frequency-doubled Nd:YAG lasers offer crime scene capability. On rare occasions latent prints observable under the argon-ion laser are not visually discernible under the Nd:YAG laser, but can be located with a sensitive television camera. Once located, photography of such prints is straightforward.


    Author Information:

    Roland Menzel, E
    Director, Center for Forensic Studies and associate professor, Texas Tech University, Lubbock, TX


    Stock #: JFS11817J

    ISSN: 0022-1198

    DOI: 10.1520/JFS11817J

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    Author
    Title Comparison of Argon-Ion, Copper-Vapor, and Frequency-Doubled Neodymium: Yttrium Aluminum Garnet (ND:YAG) Lasers for Latent Fingerprint Development
    Symposium , 0000-00-00
    Committee E30