Single-shot autocorrelator for extreme-ultraviolet radiation

Κολλιόπουλος, Γεώργιος; Tzallas, P.; Bergues, Boris; Carpeggiani, Paolo; Heissler, Patrick; Schröder, H.; Veisz, László; Charalambidis, D.; Tsakiris, George D.

doi:10.1364/josab.31.000926

Cited by 20 publications

(12 citation statements)

References 34 publications

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“…An alternative approach for temporal metrology is single-shot autocorrelations using the technique described in [152] with the ion microscope. The XUV focal spot size and the peak intensity would be calibrated using the ion microscope [150].…”

Section: A Brief Description Of Shhg Sylos Developmentmentioning

confidence: 99%

The ELI-ALPS facility: the next generation of attosecond sources

Kühn

Dumergue

Kahaly

et al. 2017

J. Phys. B: At. Mol. Opt. Phys.

163

100

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This review presents the technological infrastructure that will be available at the Extreme Light Infrastructure Attosecond Light Pulse Source (ELI-ALPS) international facility. ELI-ALPS will offer to the international scientific community ultrashort pulses in the femtosecond and attosecond domain for time-resolved investigations with unprecedented levels of high quality characteristics. The laser sources and the attosecond beamlines available at the facility will make attosecond technology accessible for scientists lacking access to these novel tools. Time-resolved

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Section: A Brief Description Of Shhg Sylos Developmentmentioning

confidence: 99%

The ELI-ALPS facility: the next generation of attosecond sources

Kühn

Dumergue

Kahaly

et al. 2017

J. Phys. B: At. Mol. Opt. Phys.

163

100

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“…In this configuration, an additional metallic filter was needed in order to eliminate the residual IR radiation reflected by the plate. The attosecond pulse was focused into a second gas jet (GJ2) by means of a split mirrors (SM) that operated also as delay stage to delay one part of the XUV beam with respect to the other [38]. The ions generated in the interaction region were finally collected by a Time-of-Flight (TOF) mass spectrometer.…”

Section: Hhg For High Xuv Intensitiesmentioning

confidence: 99%

Advances in high-order harmonic generation sources for time-resolved investigations

Reduzzi

Carpeggiani

Kühn

et al. 2015

Journal of Electron Spectroscopy and Related Phenomena

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We review the main research directions ongoing in the development of highharmonic generation-based extreme ultraviolet sources for the synthesization and application of trains and isolated attosecond pulses to time-resolved spectroscopy. A few experimental and theoretical works will be discussed in connection to well-established attosecond techniques. In this context, we present the unique possibilities offered for time-resolved investigations on the attosecond timescale by the new Extreme Light Infrastructure Attosecond Light Pulse Source, which is currently under construction. in atoms [3], molecules [4], and condensed phase systems [5], time-resolved experiments using high-order harmonics are moving fast towards the investigation of more complex systems such as biomolecules [6] and composite materials [7]. All these experiments indicate that the fundamental steps of electronic dynamics evolve on the attosecond timescale, calling for the reproducible generation and characterization of sub-femtoseconds pulses to excite and probe electronic wave packets. While the generation of trains of attosecond pulses can be accomplished by using multi-cycle IR intense femtosecond pulses, the synthesization of isolated attosecond pulses requires the precise control of the electric field of the driving pulse [8] in combination with techniques for the (spectral or temporal) confinement of the harmonic generation mechanism [9]. Nowadays, pulse durations are quickly approaching the atomic unit of time (1 a.u.=24 as) [10,11].Time-resolved studies based on high-order harmonic radiation, however, are affected by limitations that can be traced back to the fundamental characteristics of the HHG process. While the XUV-pump-IR-probe approach is routinely implemented in several laboratories, the conceptually more straightforward XUV-pump-XUV-probe approach still represents a formidable experimental challenge and it has been demonstrated only by a few groups worldwide [12,13]. The main reason resides in the low conversion efficiency of the HHG process (usually in the 10 −9 − 10 −5 range) that calls for high-energy (several tens or hundreds of mJ) driving pulses for reaching the energy level required for multi-photon interaction and nonlinear absorption in the XUV spectral range.Similarly, HHG by driving pulses in the IR spectral range is limited to photon energies up to, typically, 100 eV, thus preventing the possibility to address and investigate electronic dynamics initiated by excitation or ionization of core electrons. In this context the development of mid-IR driving source is motivated by the favorable scaling of the high harmonics cut-off energy on the wavelength of the driving pulse, which holds the promise to give access to keV isolated attosecond pulses [14].Finally, several experimental techniques, such as photoelectron microscopy, and coincidence photoelectron and photoion spectroscopy, require moderate pulse energy, but at (very) high repetition rates in order to overcome spacecharge effects and to improve the signal-to-noise...

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“…XUV-pump-XUV-probe experiments benefit substantially from the existence of intense isolated 27,28 or essentially isolated 31 XUV pulses. At the same time, observable two-(or more) XUV-photon transitions allow temporal characterization of attosecond pulses based on non-linear XUV autocorrelation (AC) measurements [32][33][34][35][36][37][38] , bypassing complications that may arise from IR-XUV cross-correlation based pulse characterization techniques 39 . It should be noted that these developments were a follow up of pioneering non-linear XUV experiments completed with individual harmonics in the few tens of fs temporal regime, including two- 40 , three- 41 and four-XUV-photon 42 ionization, two-XUV-photon double ionization 43,44 as well as the corresponding 2 nd 40,43 and 4 th order AC measurements 42 , two-XUV-photon above threshold ionization (ATI) 45 and even a FROG based XUV pulse reconstruction 46 .…”

mentioning

confidence: 99%

Α 10-gigawatt attosecond source for non-linear XUV optics and XUV-pump-XUV-probe studies

Makos

Orfanos

Nayak

et al. 2020

Sci Rep

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The quantum mechanical motion of electrons and nuclei in systems spatially confined to the molecular dimensions occurs on the sub-femtosecond to the femtosecond timescales respectively. Consequently, the study of ultrafast electronic and, in specific cases, nuclear dynamics requires the availability of light pulses with attosecond (asec) duration and of sufficient intensity to induce two-photon processes, essential for probing the intrinsic system dynamics. The majority of atoms, molecules and solids absorb in the extreme-ultraviolet (XUV) spectral region, in which the synthesis of the required attosecond pulses is feasible. Therefore, the XUV spectral region optimally serves the study of such ultrafast phenomena. Here, we present a detailed review of the first 10-GW class XUV attosecond source based on laser driven high harmonic generation in rare gases. The pulse energy of this source largely exceeds other laser driven attosecond sources and is comparable to the pulse energy of femtosecond Free-Electron-Laser (FEL) XUV sources. The measured pulse duration in the attosecond pulse train is 650 ± 80 asec. The uniqueness of the combined high intensity and short pulse duration of the source is evidenced in non-linear XUV-optics experiments. It further advances the implementation of XUV-pump-XUVprobe experiments and enables the investigation of strong field effects in the XUV spectral region.

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Single-shot autocorrelator for extreme-ultraviolet radiation

Cited by 20 publications

References 34 publications

The ELI-ALPS facility: the next generation of attosecond sources

The ELI-ALPS facility: the next generation of attosecond sources

Advances in high-order harmonic generation sources for time-resolved investigations

Α 10-gigawatt attosecond source for non-linear XUV optics and XUV-pump-XUV-probe studies

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