High-energy few-cycle pulses: post-compression techniques

T Nagy, P Simon, L Veisz - Advances in Physics: X, 2021 - Taylor & Francis
Contemporary ultrafast science requires reliable sources of high-energy few-cycle light
pulses. Currently two methods are capable of generating such pulses: post compression of …

Further Development of the Short‐Pulse Petawatt Laser: Trends, Technologies, and Bottlenecks

Z Li, Y Leng, R Li - Laser & Photonics Reviews, 2023 - Wiley Online Library
The petawatt (PW) laser has experienced a rapid development in the past two decades, and
tens of giant facilities have been constructed worldwide. After realizing 10–100 PW, it seems …

Attosecond optoelectronic field measurement in solids

S Sederberg, D Zimin, S Keiber, F Siegrist… - Nature …, 2020 - nature.com
The sub-cycle interaction of light and matter is one of the key frontiers of inquiry made
accessible by attosecond science. Here, we show that when light excites a pair of charge …

Direct mapping of curve-crossing dynamics in IBr by attosecond transient absorption spectroscopy

Y Kobayashi, KF Chang, T Zeng, DM Neumark… - Science, 2019 - science.org
The electronic character of photoexcited molecules can abruptly change at avoided
crossings and conical intersections. Here, we report direct mapping of the coupled interplay …

Relativistic-intensity near-single-cycle light waveforms at kHz repetition rate

M Ouillé, A Vernier, F Böhle, M Bocoum… - Light: Science & …, 2020 - nature.com
The development of ultra-intense and ultra-short light sources is currently a subject of
intense research driven by the discovery of novel phenomena in the realm of relativistic …

Disentangling conical intersection and coherent molecular dynamics in methyl bromide with attosecond transient absorption spectroscopy

H Timmers, X Zhu, Z Li, Y Kobayashi, M Sabbar… - Nature …, 2019 - nature.com
Attosecond probing of core-level electronic transitions provides a sensitive tool for studying
valence molecular dynamics with atomic, state, and charge specificity. In this report, we …

[HTML][HTML] Direct compression of 170-fs 50-cycle pulses down to 1.5 cycles with 70% transmission

YG Jeong, R Piccoli, D Ferachou, V Cardin, M Chini… - Scientific reports, 2018 - nature.com
We present a straightforward route for extreme pulse compression, which relies on
moderately driving self-phase modulation (SPM) over an extended propagation distance …

Generation of above-terawatt 1.5-cycle visible pulses at 1 kHz by post-compression in a hollow fiber

T Nagy, M Kretschmar, MJJ Vrakking, A Rouzée - Optics Letters, 2020 - opg.optica.org
We report on the generation of 6.1 mJ, 3.8 fs pulses by the compression of a kilohertz Ti:
sapphire laser in a large-aperture long hollow fiber. In order to find optimal conditions for …

Revealing electronic state-switching at conical intersections in alkyl iodides by ultrafast XUV transient absorption spectroscopy

KF Chang, M Reduzzi, H Wang, SM Poullain… - Nature …, 2020 - nature.com
Conical intersections between electronic states often dictate the chemistry of photoexcited
molecules. Recently developed sources of ultrashort extreme ultraviolet (XUV) pulses tuned …

High-contrast, intense single-cycle pulses from an all thin-solid-plate setup

M Seo, K Tsendsuren, S Mitra, M Kling, D Kim - Optics Letters, 2020 - opg.optica.org
High-contrast, intense single-cycle pulses are highly desirable tools in ultrafast science,
enabling highest temporal resolution, pushing matter to extreme conditions, and serving as …