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DOE OSTI · 2331217

Dual-comb spectroscopy in the deep ultraviolet

McCauley, John J.·Phillips, Mark C.·Weeks, Reagan D.·Zhang, Yu Kane·Harilal, Sivanandan S.·Jones, R. Jason
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Abstract

This Letter reports dual-frequency-comb spectroscopy in the deep ultraviolet used to characterize transient laser-produced plasmas. Dual-comb spectroscopy at these wavelengths enables access to a large number of strong electronic transitions in neutral and ionized atoms and molecules. This broadband dual-frequency-comb system at 265 nm measures multiple transitions in neutral and singly ionized iron atoms in a laser-produced plasma. Analysis of absorption spectra yields time-resolved ion and neutral column densities, excitation temperatures, and electron densities, which are measured down to 10 14 cm —3 levels. The results provide insights into low-temperature plasma properties.

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BibTeXRIS

McCauley, John J., Phillips, Mark C., Weeks, Reagan D., Zhang, Yu Kane, Harilal, Sivanandan S., Jones, R. Jason. 2024-03-28. Dual-comb spectroscopy in the deep ultraviolet. https://doi.org/10.1364/optica.516851

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