BibTex format
@article{Lee:2024:10.1364/optica.530964,
author = {Lee, JP and Avni, T and Alexander, O and Maimaris, M and Ning, H and Bakulin, AA and Burden, PG and Moutoulas, E and Georgiadou, DG and Brahms, C and Travers, JC and Marangos, JP and Ferchaud, C},
doi = {10.1364/optica.530964},
journal = {Optica},
pages = {1320--1323},
title = {Few-femtosecond soft X-ray transient absorption spectroscopy with tuneable DUV-Vis pump pulses},
url = {http://dx.doi.org/10.1364/optica.530964},
volume = {11},
year = {2024}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - Achieving few-femtosecond resolution for a pump-probe experiment is crucial to measuring the fastest electron dynamics and for creating superpositions of valence states in quantum systems. However, traditional UV-Vis pump pulses cannot achieve few-fs durations and usually operate at fixed wavelengths. Here, we present, to our knowledge, an unprecedented temporal resolution and pump tuneability for UV-Vis-pumped soft X-ray transient absorption spectroscopy. We have combined few-fs deep-UV to visible tuneable pump pulses from resonant dispersive wave emission in hollow capillary fiber with attosecond soft X-ray probe pulses from high harmonic generation. We achieve sub-5-fs time resolution, sub-fs interferometric stability, and continuous tuneability of the pump pulses from 230 to 700 nm. We demonstrate that the pump can initiate an ultrafast photochemical reaction and that the dynamics at different atomic sites can be resolved simultaneously. These capabilities will allow studies of the fastest electronic dynamics in a large range of photochemical, photobiological and photovoltaic reactions.
AU - Lee,JP
AU - Avni,T
AU - Alexander,O
AU - Maimaris,M
AU - Ning,H
AU - Bakulin,AA
AU - Burden,PG
AU - Moutoulas,E
AU - Georgiadou,DG
AU - Brahms,C
AU - Travers,JC
AU - Marangos,JP
AU - Ferchaud,C
DO - 10.1364/optica.530964
EP - 1323
PY - 2024///
SN - 2334-2536
SP - 1320
TI - Few-femtosecond soft X-ray transient absorption spectroscopy with tuneable DUV-Vis pump pulses
T2 - Optica
UR - http://dx.doi.org/10.1364/optica.530964
UR - http://hdl.handle.net/10044/1/115099
VL - 11
ER -