Direct Measurement of the Fundamental Rotational Transitions of the Oh Radical by Laser Sideband Spectroscopy
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چکیده
We report for the first time the direct (zero-field) spectra of the fundamental rotational transitions of the OH radical in its 0 = 3/2 and 1/2 states at 2509.9 and 1834.7 GHz using a recently developed far-infrared laser sideband spectrometer. These measurements have verified and refined the predictions of previous laser magnetic resonance (LMR) work, thereby confirming the far-infrared detection of interstellar OH. The increased accuracy of these direct measurements will be useful to future astronomical and atmospheric studies of these important transitions. Subject headings: laboratory spectramolecular processes
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تاریخ انتشار 2009