Focusability of laser pulses at petawatt transport intensities in thin-film compression

Farinella, Deano; Wheeler, Jonathan; Hussein, Amina; Nees, J.; Stanfield, Matthew; Beier, Norbert; Ma, Y.; Cojocaru, G.; Ungureanu, R.; Pittman, M.; Demailly, J.; Baynard, Elsa; Fabbri, R.; Masruri, Masruri; Secareanu, R.M.; Nazîru, Andrei; Dabu, R.; Maksimchuk, A.; Krushelnick, K.; Ros, D.; Mourou, G.; Tajima, T.; Dollar, F.

doi:10.1364/josab.36.000a28

Cited by 31 publications

(14 citation statements)

References 38 publications

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“…Novel schemes for the generation of terawatt or even petawatt few-cycle pulses have been proposed, and recently, the first experimental proof-of-principle demonstrations have been reported for thin-film compression of top-hat pulses 22 as well as frequency downshifting of intense optical pulses into the mid-infrared via plasma-based photon deceleration 23 .…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2020

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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 optics, such as the production of ultrafast energetic particle and radiation beams for applications. It has been a long-standing challenge to unite two hitherto distinct classes of light sources: those achieving relativistic intensity and those with pulse durations approaching a single light cycle. While the former class traditionally involves large-scale amplification chains, the latter class places high demand on the spatiotemporal control of the electromagnetic laser field. Here, we present a light source producing waveformcontrolled 1.5-cycle pulses with a 719 nm central wavelength that can be focused to relativistic intensity at a 1 kHz repetition rate based on nonlinear post-compression in a long hollow-core fiber. The unique capabilities of this source allow us to observe the first experimental indications of light waveform effects in laser wakefield acceleration of relativistic energy electrons.

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Section: Introductionmentioning

confidence: 99%

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

et al. 2020

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“…Despite a huge number of works (see, for example, references in the review paper [3]), pulses were compressed only with mJ energy, and the energy efficiency was less than 50%. In the recent years, quite a few experimental results were obtained [9][10][11][12][13][14][15][16], in which CafCA was successfully implemented for pulses with an energy of 1-18 J and energy efficiency close to 100%. An important impetus for these studies was the proposed and experimentally confirmed method of suppressing small-scale self-focusing [17,18], even at large values of the B-integral…”

Section: Introductionmentioning

confidence: 99%

“…In experiments, different materials were used as a nonlinear medium, e.g., glass [9], polyethylene terephthalate [10], but in the majority of works it was silica [11][12][13][14][15][16]. As shown in [3], a compressed pulse will be shorter at a minimal ratio of the group velocity dispersion k 2 to the nonlinear index of refraction n 2 .…”

Section: Introductionmentioning

confidence: 99%

Use of KDP crystal as a Kerr nonlinear medium for compressing PW laser pulses down to 10 fs

Shaykin

Гинзбург

Yakovlev

et al. 2021

High Pow Laser Sci Eng

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The input pulse of the laser PEARL with energy of 18 J and pulse duration of about 60 fs was compressed to 10 fs after passage through a 4-mm thick KDP crystal and reflection at two chirped mirrors with sum dispersion −200 fs 2 . The experiments were performed for the В-integral values from 5 to 19 without visible damages of the optical elements, which indicates that small-scale self-focusing is not a significant issue. It was shown that, by virtue of the low dispersion of the group velocity, the KDP crystal has some advantages over silica: a larger pulse compression coefficient, especially at a small value of the В-integral (B=5…9), lower absolute values of chirped mirror dispersion, and also a possibility to control the magnitude of nonlinearity and dispersion by changing crystal orientation.

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“…For example, the application of the method for a pulse after wide-angle non-collinear optical parametric chirped-pulse amplification (WNOPCPA) [19], the enhancement of the pulse time contrast simultaneously with its compression [20][21][22][23], and the use of a nonlinear medium with a large n 2 [24]. Pulse compression of the lasers of moderately low power (below 50 TW) [25][26][27][28][29][30][31][32], as well as of the lasers with a power of 100 TW and higher [33][34][35][36][37] was experimentally demonstrated at free beam propagation in a nonlinear medium. Note also the demonstration of the two-stage CafCA in both these ranges [32,38].…”

Section: Introductionmentioning

confidence: 99%

11 fs, 1.5 PW Laser with Nonlinear Pulse Compression

Гинзбург

Yakovlev

Kochetkov

et al. 2021

Laser Congress 2021 (ASSL,LAC)

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The PEARL laser output pulse with a duration of 60-70 fs was compressed to 11 fs after passing through a 5-mm thick silica plate and reflecting from two chirping mirrors with a total dispersion of -250 fs 2 . The experiments were carried out for the B-integral values up to 19 without damage of the optical elements, which indicates that small-scale self-focusing was suppressed. The results obtained show the possibility of further nonlinear compression scaling to multipetawatt power in pulses with duration commensurate with the field period.

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Focusability of laser pulses at petawatt transport intensities in thin-film compression

Cited by 31 publications

References 38 publications

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

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

Use of KDP crystal as a Kerr nonlinear medium for compressing PW laser pulses down to 10 fs

11 fs, 1.5 PW Laser with Nonlinear Pulse Compression

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