Scanning surface-enhanced Raman spectroscopy (SERS) of chemical agent simulants on templated Au-Ag nanowire substrates

J. A. Hoffmann; J. A. Miragliotta; J. Wang; P. Tyagi; T. Maddanimath; D. H. Gracias; S. J. Papadakis

doi:10.1117/12.818818

11 May 2009 Scanning surface-enhanced Raman spectroscopy (SERS) of chemical agent simulants on templated Au-Ag nanowire substrates

J. A. Hoffmann, J. A. Miragliotta, J. Wang, P. Tyagi, T. Maddanimath, D. H. Gracias, S. J. Papadakis

Author Affiliations +

Proceedings Volume 7318, Micro- and Nanotechnology Sensors, Systems, and Applications; 73180D (2009) https://doi.org/10.1117/12.818818
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

We report the results of scanning micro-Raman spectroscopy obtained on Au-Ag nanowires for a variety of chemical warfare agent simulants. Rough silver segments embedded in gold nanowires showed enhancement of 10⁵ - 10⁷ and allowed unique identification of 3 of 4 chemical agent simulants tested. These results suggest a promising method for detection of compounds significant for security applications, leading to sensors that are compact and selective.

Citation Download Citation

J. A. Hoffmann, J. A. Miragliotta, J. Wang, P. Tyagi, T. Maddanimath, D. H. Gracias, and S. J. Papadakis "Scanning surface-enhanced Raman spectroscopy (SERS) of chemical agent simulants on templated Au-Ag nanowire substrates", Proc. SPIE 7318, Micro- and Nanotechnology Sensors, Systems, and Applications, 73180D (11 May 2009); https://doi.org/10.1117/12.818818

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