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Femtosecond Symmetry Breaking and Coherent Relaxation of Methane Cations at the Carbon K-Edge
Enrico Ridente, Diptarka Hait, Eric A. Haugen +4
Understanding the relaxation pathways of photoexcited molecules is essential to gain atomistic level insight into photochemistry. Herein, we perform a time-resolved study of ultraf…
Measuring autoionization decay lifetimes of optically forbidden inner valence excited states in neon atoms with attosecond noncollinear four wave mixing spectroscopy
Nicolette G. Puskar, Yen-Cheng Lin, James D. Gaynor +8
Attosecond noncollinear four wave mixing spectroscopy with one attosecond extreme ultraviolet (XUV) pulse and two few-cycle near-infrared (NIR) pulses was used to measure the autoi…
Non-resonant Coherent Amplitude Transfer in Attosecond Four-Wave Mixing Spectroscopy
James D. Gaynor, Ashley P. Fidler, Yuki Kobayashi +4
Attosecond four-wave mixing spectroscopy using an XUV pulse and two noncollinear near-infrared pulses is employed to measure Rydberg wavepacket dynamics resulting from extreme ultr…
Carrier and Phonon Dynamics in Multilayer WSe2 captured by Extreme Ultraviolet Transient Absorption Spectroscopy
Juwon Oh, Hung-Tzu Chang, Christopher T. Chen +3
Carrier and phonon dynamics in a multilayer WSe2 film are captured by extreme ultraviolet (XUV) transient absorption (TA) spectroscopy at the W N6,7, W O2,3, and Se M4,5 edges (30-…
Ultrafast X-ray Spectroscopy of Intersystem Crossing in Hexafluoroacetylacetone: Chromophore Photophysics and Spectral Changes in the Face of Electron Withdrawing Groups
Eric A. Haugen, Diptarka Hait, Valeriu Scutelnic +3
Intersystem crossings between singlet and triplet states represent a crucial relaxation pathway in photochemical processes. Herein, we probe the intersystem crossing in hexafluoro-…
Core-excited states of SF probed with soft X-ray femtosecond transient absorption of vibrational wavepackets
Lou Barreau, Andrew D. Ross, Victor Kimberg +4
A vibrational wavepacket in SF, created by impulsive stimulated Raman scattering with a few-cycle infrared pulse, is mapped onto five sulfur core-excited states using table-top…