Probing ultrafast excited-state dynamics using EUV-IR six-wave-mixing emission spectroscopy
AffiliationDepartment of Physics, University of Arizona
College of Optical Sciences, University of Arizona
MetadataShow full item record
PublisherOptica Publishing Group (formerly OSA)
CitationIslam Shalaby, Nisnat Chakraborty, Sergio Yanez-Pagans, James Wood, Dipayan Biswas, and Arvinder Sandhu, "Probing ultrafast excited-state dynamics using EUV-IR six-wave-mixing emission spectroscopy," Opt. Express 30, 46520-46527 (2022)
Rights© 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractNon-linear processes such as four-wave-mixing have become instrumental in attosecond EUV spectroscopy. Using EUV high harmonics in conjunction with collinear near-infrared and mid-infrared fields, we extended this approach to high-order-mixing between three colors. Specifically, we find that atomic resonances in neon exhibit a significant cross section for six-wave mixing. The MIR probe frequency tunability in our multicolor scheme is employed to access several optically dark resonances and probe the quantum beat of a coherent electronic wavepacket using background-free EUV emission as a diagnostic. This technique can be easily extended to other atomic and molecular systems, and opens the door to multi-dimensional non-linear spectroscopy. © 2022 Optica Publishing Group.
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VersionFinal published version