Dual-comb spectroscopy in the deep ultraviolet

Dual-comb spectroscopy in the deep ultraviolet

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...

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Veröffentlicht in:Optica 2024-04, Vol.11 (4), p.460
Hauptverfasser: McCauley, John J., Phillips, Mark C., Weeks, Reagan R. D., Zhang, Yu, Harilal, Sivanandan S., Jones, R. Jason
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container_issue 4
container_start_page 460
container_title Optica
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creator McCauley, John J.
Phillips, Mark C.
Weeks, Reagan R. D.
Zhang, Yu
Harilal, Sivanandan S.
Jones, R. Jason
description 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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title Dual-comb spectroscopy in the deep ultraviolet
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