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Proceedings Paper

Design and build a compact Raman sensor for identification of chemical composition
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Paper Abstract

A compact remote Raman sensor system was developed at NASA Langley Research Center. This sensor is an improvement over the previously reported system, which consisted of a 532 nm pulsed laser, a 4-inch telescope, a spectrograph, and an intensified CCD camera. One of the attractive features of the previous system was its portability, thereby making it suitable for applications such as planetary surface explorations, homeland security and defense applications where a compact portable instrument is important. The new system was made more compact by replacing bulky components with smaller and lighter components. The new compact system uses a smaller spectrograph measuring 9 x 4 x 4 in. and a smaller intensified CCD camera measuring 5 in. long and 2 in. in diameter. The previous system was used to obtain the Raman spectra of several materials that are important to defense and security applications. Furthermore, the new compact Raman sensor system is used to obtain the Raman spectra of a diverse set of materials to demonstrate the sensor system's potential use in the identification of unknown materials.

Paper Details

Date Published: 17 April 2008
PDF: 7 pages
Proc. SPIE 6943, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense VII, 69430I (17 April 2008); doi: 10.1117/12.781458
Show Author Affiliations
Christopher S. Garcia, Old Dominion Univ. (United States)
M. Nurul Abedin, NASA Langley Research Ctr. (United States)
Syed Ismail, NASA Langley Research Ctr. (United States)
Shiv K. Sharma, Univ. of Hawai'i (United States)
Anupam K. Misra, Univ. of Hawai'i (United States)
Stephen P. Sandford, NASA Langley Research Ctr. (United States)
Hani Elsayed-Ali, Old Dominion Univ. (United States)


Published in SPIE Proceedings Vol. 6943:
Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense VII
Edward M. Carapezza, Editor(s)

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