High-repetition rate attosecond beamline for multi-particle coincidence experiments

Srinivas, Hemkumar; Shobeiry, Farshad; Bharti, Divya; Pfeifer, Thomas; Moshammer, R.; Harth, Anne

doi:10.1364/oe.454553

Cited by 13 publications

(5 citation statements)

References 38 publications

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“…3-SB RABBIT experiments require a very high stability of the interferometer, since the oscillation period is just 850 attoseconds. Therefore, the interferometer is actively stabilized [8] to achieve a stability of ≈ 40 attoseconds over a data acquisition time of seven hours. As in conventual RABBIT experiments, the phase between the sidebands is extracted by fitting a cosine function to the time-dependent oscillations.…”

Section: Resultsmentioning

confidence: 99%

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Sub-femtosecond dynamics in photoionization and photodissociation processes

Shobeiry¹,

Bharti²,

Fross³

et al. 2023

Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXIII

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Section: Resultsmentioning

confidence: 99%

“…The RABBIT experimental setup [8] is based on a linearly-polarized fiber laser with a central wavelength of 1030 nm, a pulse energy of 1 mJ, and a pulse duration of 50 fs at a repetition rate of 50 kHz. The beam is divided into two parts with a holy mirror.…”

Section: Methodsmentioning

confidence: 99%

Sub-femtosecond dynamics in photoionization and photodissociation processes

Shobeiry¹,

Bharti²,

Fross³

et al. 2023

Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXIII

Self Cite

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show abstract

“…The efficiency of the ReMi made angular-resolved measurements with sufficiently high signal rates possible [13]. The setup was actively stabilized [14] to achieve a stability of ≈ 40 attoseconds over a data acquisition time of 7 hours. The stability of the interferometer was critical for the successful realization of the 3-SB scheme since the oscillation period was just 850 attoseconds.…”

Section: Methodsmentioning

confidence: 99%

Multi-Sideband RABBIT in Argon

Bharti¹,

Srinivas²,

Shobeiry³

et al. 2022

Preprint

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We report a joint experimental and theoretical study of a three-sideband (3-SB) modification of the "reconstruction of attosecond beating by interference of two-photon transitions" (RABBIT) setup. The 3-SB RABBIT scheme makes it possible to investigate phases resulting from interference between transitions of different orders in the continuum. Furthermore, the strength of this method is its ability to focus on the atomic phases only, independent of a chirp in the harmonics, by comparing the RABBIT phases extracted from specific SB groups formed by two adjacent harmonics. We verify earlier predictions that the phases and the corresponding time delays in the three SBs extracted from angle-integrated measurements become similar with increasing photon electron energy. A variation in the angle dependence of the RABBIT phases in the three SBs results from the distinct Wigner and continuum-continuum coupling phases associated with the individual angular momentum channels. A qualitative explanation of this dependence is attempted by invoking a propensity rule. Comparison between the experimental data and predictions from an R-matrix (close-coupling) with time dependence calculation shows qualitative agreement in the observed trends.

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“…Some of these high repetition rate XUV sources have been implemented for different applications such as time-and angle-resolved photoemission spectroscopy in solids [187], coherent diffractive imaging [188], or attosecond pump-probe spectroscopy [79]. In particular, high repetition rate OPCPAs and post-compressed Yb-CPAs are being implemented in attosecond pump-probe experiments with coincidence detection of ions and photoelectrons [189][190][191][192][193].…”

Section: Attosecond Pump-probe Spectroscopy With High Acquisition Ratementioning

confidence: 99%

High power, high repetition rate laser-based sources for attosecond science

Furch¹,

Witting²,

Osolodkov³

et al. 2022

J. Phys. Photonics

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Within the last two decades attosecond science has been established as a novel research ﬁeld providing insights into the ultrafast electron dynamics that follows a photoexcitation or photoionization process. Enabled by technological advances in ultrafast laser ampliﬁers, attosecond science has been in turn, a powerful engine driving the development of novel sources of intense ultrafast laser pulses. This article focuses on the development of high repetition rate laser-based sources delivering high energy pulses with a duration of only a few optical cycles, for applications in attosecond science. In particular, a high power, high repetition rate optical parametric chirped pulse ampliﬁcation system is described, which was developed to drive an attosecond pump-probe beamline targeting photoionization experiments with electron-ion coincidence detection at high acquisition rates.

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High-repetition rate attosecond beamline for multi-particle coincidence experiments

Cited by 13 publications

References 38 publications

Sub-femtosecond dynamics in photoionization and photodissociation processes

Sub-femtosecond dynamics in photoionization and photodissociation processes

Multi-Sideband RABBIT in Argon

High power, high repetition rate laser-based sources for attosecond science

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