首页|Chemical analysis from a distance: Spatially resolved, remote sensing using backward transient absorption
Chemical analysis from a distance: Spatially resolved, remote sensing using backward transient absorption
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NSTL
Elsevier
ABSTR A C T Identification of chemical species from a distance is achieved with backward transient absorption spectroscopy. The experiments employ UV excitation followed by a Rydberg-Rydberg transition that gives the method its inherent molecule-specificity. Using three similar amines, we demonstrate that backward transient absorption spectroscopy can identify closely related compounds. The distance of the vapors is measured independently with a sub-millimeter spatial resolution, limited by the duration of the laser pulses and the signal level. The combi-nation of high sensitivity and excellent spatial resolution makes backward transient absorption spectroscopy an excellent choice for applications where chemical structures can be identified from a distance.
NSTL
Elsevier
