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Laser Materials Optics Sensors |
Acoustic arrays Biomimetic sensors, controls and propulsion Electrodynamic traps for aerosols IR multispectral remote imaging Infrasonic frequency sensors Laser-based spectroscopic sensors LIDAR Nuclear radiation detection Photometric in-situ spectroscopy Radiation sensors Spectroscopic sensing Tunable diode laser spectroscopy Under sea fluorescence measurements X-ray imaging |
Photometric in-situ spectroscopy involves the application of a variety of spectroscopic techniques to probe and interrogate material samples in situ (as opposed to remotely). Such information is typically used to assess and quantitate the chemical composition of a sample in a non-invasive and non-destructive manner. PSI's technology base in this area includes the application of: ultrasensitive absorption/extinction spectroscopy, diffuse reflectance spectroscopy, and a variety of excitation-induced emission spectroscopies including fluorescence, luminescence, Raman scattering, and atomic and infrared active molecular emission spectroscopy. In applying these techniques to specific problems, PSI scientists and engineers will select the most appropriate technique for the application, and then often devise customized approaches to optimize sample excitation along with photometric signal generation, extraction, and analysis.
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