Photonic sensor devices for explosive detection |
| |
Authors: | Ulrike Willer Wolfgang Schade |
| |
Institution: | (1) LaserApplicationCenter, Clausthal University of Technology, Energiecampus, Am Stollen 19, Haus 3, 38640 Goslar, Germany;(2) Fraunhofer Heinrich-Hertz-Institut, Energiecampus, Am Stollen 19, Haus 3, 38640 Goslar, Germany |
| |
Abstract: | For the sensitive online and in situ detection of gaseous species, optical methods are ideally suited. In contrast to chemical
analysis, no sample preparation is necessary and therefore spectroscopic methods should be favorable both in respect of a
fast signal recovery and economically because no disposal is needed. However, spectroscopic methods are currently not widely
used for security applications. We review photonic sensor devices for the detection of explosives in the gas phase as well
as the condensed phase and the underlying spectroscopic techniques with respect to their adaptability for security applications,
where high sensitivity, high selectivity, and a low false-alarm rate are of importance. The measurements have to be performed
under ambient conditions and often remote handling or even operation in standoff configuration is needed. For handheld and
portable equipment, special attention is focused on the miniaturization and examples for already-available sensor devices
are given. |
| |
Keywords: | Photonic sensors Explosives Instrumentation Security applications |
本文献已被 SpringerLink 等数据库收录! |
|