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

Christopher S. Garcia; M. Nurul Abedin; Syed Ismail; Shiv K. Sharma; Anupam K. Misra; Stephen P. Sandford; Hani Elsayed-Ali

doi:10.1117/12.781458

17 April 2008 Design and build a compact Raman sensor for identification of chemical composition

Christopher S. Garcia, M. Nurul Abedin, Syed Ismail, Shiv K. Sharma, Anupam K. Misra, Stephen P. Sandford, Hani Elsayed-Ali

Author Affiliations +

Proceedings Volume 6943, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense VII; 69430I (2008) https://doi.org/10.1117/12.781458
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

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.

Citation Download Citation

Christopher S. Garcia, M. Nurul Abedin, Syed Ismail, Shiv K. Sharma, Anupam K. Misra, Stephen P. Sandford, and Hani Elsayed-Ali "Design and build a compact Raman sensor for identification of chemical composition", Proc. SPIE 6943, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense VII, 69430I (17 April 2008); https://doi.org/10.1117/12.781458

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