A search accelerated correct intensity Fourier transform microwave spectrometer with pulsed laser ablation source

Grubbs, Garry S.; Dewberry, Christopher T.; Etchison, Kerry C.; Kerr, Katherine E.; Cooke, Stephen A.
September 2007
Review of Scientific Instruments;Sep2007, Vol. 78 Issue 9, p096106
Academic Journal
The ablation of metal surfaces in the presence of a precursor gas produces reaction products which are often difficult to predict and highly dependent on ablation conditions. This article describes the successful development and implementation of a laser ablation source-equipped Fourier transform microwave spectrometer capable of observing 4 GHz regions of spectra in a single data acquisition event. The dramatically increased speed with which regions may be searched, when compared to other high resolution microwave techniques, allows the source conditions to be the prime variable in laser ablation microwave spectroscopic studies. A second feature of the technique is that observed spectral features have correct relative intensities. This is advantageous when assigning observed spectra. The study of two metal chlorides, AgCl and AuCl, illustrate the instrument’s benefits.


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