Detection of explosives and latent fingerprint residues utilizing laser pointer-based Raman spectroscopy

Itamar Malka, Alona Petrushansky, Salman Rosenwaks, Ilana Bar

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

A modular, compact Raman spectrometer, based on a green laser pointer, an air cooled intensified charged coupled device and a x, y motorized translation stage was developed and applied for point detection. Its performance was tested for measurements of Raman spectra of liquids, trace amounts of explosives and individual particles, as well as for locating individual particles of interest and for chemical imaging of residues of latent human fingerprints. This system was found to be highly sensitive, identifying masses as low as ~1 ng in short times. The point and real-time detection capabilities of the spectrometer, together with the portability that it offers, make it a potential candidate for replacing existing Raman microscopes and for field applications.

Original languageEnglish
Pages (from-to)511-518
Number of pages8
JournalApplied Physics B: Lasers and Optics
Volume113
Issue number4
DOIs
StatePublished - 1 Dec 2013

Fingerprint

Dive into the research topics of 'Detection of explosives and latent fingerprint residues utilizing laser pointer-based Raman spectroscopy'. Together they form a unique fingerprint.

Cite this