Progress on table-top isolated attosecond light sources

K Midorikawa - Nature Photonics, 2022 - nature.com
Research on isolated attosecond pulses (IAPs) based on high-order harmonic generation
changed substantially around 2010. Before then, the Ti: sapphire laser was the de facto …

Attosecond spectroscopy for the investigation of ultrafast dynamics in atomic, molecular and solid-state physics

R Borrego-Varillas, M Lucchini… - Reports on Progress in …, 2022 - iopscience.iop.org
Since the first demonstration of the generation of attosecond pulses (1 as= 10− 18 s) in the
extreme-ultraviolet spectral region, several measurement techniques have been introduced …

Sub-7-femtosecond conical-intersection dynamics probed at the carbon K-edge

KS Zinchenko, F Ardana-Lamas, I Seidu, SP Neville… - Science, 2021 - science.org
Conical intersections allow electronically excited molecules to return to their electronic
ground state. Here, we observe the fastest electronic relaxation dynamics measured to date …

Femtosecond proton transfer in urea solutions probed by X-ray spectroscopy

Z Yin, YP Chang, T Balčiūnas, Y Shakya, A Djorović… - Nature, 2023 - nature.com
Proton transfer is one of the most fundamental events in aqueous-phase chemistry and an
emblematic case of coupled ultrafast electronic and structural dynamics,. Disentangling …

Spin–vibronic coherence drives singlet–triplet conversion

SR Rather, NP Weingartz, S Kromer, FN Castellano… - Nature, 2023 - nature.com
Abstract Design-specific control over the transitions between excited electronic states with
different spin multiplicities is of the utmost importance in molecular and materials chemistry …

Coherent control of ultrafast extreme ultraviolet transient absorption

P Peng, Y Mi, M Lytova, M Britton, X Ding… - Nature …, 2022 - nature.com
Ultrafast extreme ultraviolet (XUV) transient absorption is the process by which atoms and
molecules absorb light on a timescale faster than the lifetime of the states involved …

Attosecond technology (ies) and science

J Biegert, F Calegari, N Dudovich… - Journal of Physics B …, 2021 - iopscience.iop.org
Since 2001 and the first demonstrations of the feasibility of generating and measuring
attosecond light pulses, attosecond science has developed into a very active and quickly …

Conical intersection versus avoided crossing: Geometric phase effect in molecular high-order harmonics

G Yuan, R Lu, S Jiang, K Dorfman - Ultrafast Science, 2023 - spj.science.org
Nonadiabatic dynamics around an avoided crossing or a conical intersection play a crucial
role in the photoinduced processes of most polyatomic molecules. The present work shows …

Attosecond-pump attosecond-probe x-ray spectroscopy of liquid water

S Li, L Lu, S Bhattacharyya, C Pearce, K Li… - Science, 2024 - science.org
Attosecond-pump/attosecond-probe experiments have long been sought as the most
straightforward method for observing electron dynamics in real time. Although there has …

X-ray transient absorption reveals the 1Au (nπ*) state of pyrazine in electronic relaxation

V Scutelnic, S Tsuru, M Pápai, Z Yang… - Nature …, 2021 - nature.com
Electronic relaxation in organic chromophores often proceeds via states not directly
accessible by photoexcitation. We report on the photoinduced dynamics of pyrazine that …