Dual-comb spectroscopy (DCS) has widespread applications. It has become a more
prominent spectroscopic tool because it has broad spectral coverage with high frequency resolution. We demonstrate the broadband and high resolution of DCS to
probe transient events, showing the rst use of DCS of laser-induced plasmas (LIPs).
Our measurements span absorption features 7 THz wide, simultaneously detecting Rb
D2, K D1 and D2 absorption lines with the ability to resolve the isotope ratios in the
Rb D2 line. This technique is more broadband and faster than tunable laser absorption spectroscopy because it eliminates the requirement to scan across transitions.
Additionally, DCS makes higher resolution measurements than laser-induced break-
down spectroscopy. Our ultimate goal is to use DCS as a technique to ascertain the
chemical composition of unknown samples. Our rst demonstration of this technique
illustrates that DCS makes broadband, high-resolution measurements with the ability
to measure isotope ratios, which is necessary for determining sample composition.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/625696 |
| Date | January 2017 |
| Creators | Bergevin, Jenna, Bergevin, Jenna |
| Contributors | Jones, R. Jason, Jones, R. Jason, Yeak, Jeremy, Sandhu, Arvinder, Schaibley, John |
| Publisher | The University of Arizona. |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Type | text, Electronic Thesis |
| Rights | Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. |
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