Development of MEMS photoacoustic spectroscopy

Technical Report · Wed Jan 01 00:00:00 EST 2014

DOI:https://doi.org/10.2172/1200669· OSTI ID:1200669

Robinson, Alex Lockwood ^[1]; Eichenfield, Matthew S. ^[1]; Griffin, Benjamin ^[1]; Harvey, Heidi Alyssa ^[1]; Nielson, Gregory N. ^[1]; Okandan, Murat ^[1]; Langlois, Eric ^[1]; Resnick, Paul James ^[1]; Shaw, Michael J. ^[1]; Young, Ian ^[1]; Givler, Richard C. ^[1]; Reinke, Charles M. ^[1]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

After years in the field, many materials suffer degradation, off-gassing, and chemical changes causing build-up of measurable chemical atmospheres. Stand-alone embedded chemical sensors are typically limited in specificity, require electrical lines, and/or calibration drift makes data reliability questionable. Along with size, these "Achilles' heels" have prevented incorporation of gas sensing into sealed, hazardous locations which would highly benefit from in-situ analysis. We report on development of an all-optical, mid-IR, fiber-optic based MEMS Photoacoustic Spectroscopy solution to address these limitations. Concurrent modeling and computational simulation are used to guide hardware design and implementation.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1200669
• Report Number(s): SAND2014-0603; 507560
• Resource Relation: Conference: Naples (Italy), 3-5 Jun 2014
• Country of Publication: United States
• Language: English