Sensors & Electronics
Chemical Sensors
Terahertz Domain EM Spectroscopy (406)
Problem: Determine electromagnetic spectral properties of materials in the mm- and THz-wave domains.
Project Activity Scope (from Technical Overview Chart): Mechanisms through Devices
PNNL Solution:
- Measure electromagnetic transmittance of sample materials (chemical, biological, natural and manmade materials) using a broad spectral range FTIR.
- Analyze spectra to determine measurement system effects and to determine the needed material spectral properties.
Capabilities Employed to Meet Client Needs: FTIR for spectral transmission measurements with the capability to measure moderate resolution to routine resolution spectra; wide range of sample preparation methods; spectral analysis and modeling including comparisons with existing data bases (HiTran, etc.); optical system assembly and use; equipment to handle reactive and toxic vapor samples; diffuse scattering measurements of solid samples.
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Contact: Steven Sharpe
