Relativistic mirrors in laser plasmas (analytical methods)

Bulanov, Sergei V.; Esirkepov, T. Zh.; Kando, M.; Koga, James

doi:10.1088/0963-0252/25/5/053001

Cited by 23 publications

(19 citation statements)

References 105 publications

(282 reference statements)

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“…The model of relativistic oscillating mirror and attosecond second generation have been proposed and discussed in refs. [51][52][53][54] . The frequency of the reflected laser field is blue shifted since the incident pulse experiences the Doppler effect and the incident pulse also breaks up into short-wave packets 55 .…”

Section: Resultsmentioning

confidence: 99%

Brilliant gamma-ray beam and electron–positron pair production by enhanced attosecond pulses

Klimo

Bulanov

et al. 2018

Commun Phys

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Electron-positron pair production via Breit-Wheeler process requires laser intensities approaching 10 24 W cm −2 due to the small cross-section. Here, we propose a mechanism for brilliant γ-ray emission and dense GeV pairs creation accompanied with highharmonic generation by using plasma mirror and an ultra short pulse with the intensity of 3 × 10 23 W cm −2. The laser is reflected by the solid surface after propagating tens of microns in a near-critical density plasma and breaks into short wave packets. The intensity of the reflected high order harmonic field is enhanced by the focusing and compression effects from the deformed oscillating mirror. The radiation trapped electrons emit γ-photons while colliding with the reflected attosecond pulses. The peak intensity of the γ-ray reaches 0.74 PW with the brilliance of 2 × 10 24 s −1 mm −2 mrad −2 (0.1%BW) −1 (at 58 MeV). A GeV positron beam is obtained with density of 4 × 10 21 cm −3 and a particle number of 5.6 × 10 9 .

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Section: Resultsmentioning

confidence: 99%

Brilliant gamma-ray beam and electron–positron pair production by enhanced attosecond pulses

Klimo

Bulanov

et al. 2018

Commun Phys

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“…Finally, we generalize the definition of the energy density gain U gain and using Eqs. (11), (18) we obtain for all t…”

Section: Cold-fluid Theory Of Electron-beam-driven Amplification In 1dmentioning

confidence: 97%

“…Without the standing mirror [ Fig. 3(a)] the setup is known as the relativistic flying mirror concept [11]. The solid red line indicates the edges of the incoming electromagnetic pulse which is perfectly reflected by the electron beam.…”

Section: Fig 2 (A)mentioning

confidence: 99%

Electron Beam Driven Generation of Frequency-Tunable Isolated Relativistic Subcycle Pulses

2019

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We propose a novel scheme for frequency-tunable sub-cycle electromagnetic pulse generation. To this end a pump electron beam is injected into an electromagnetic seed pulse as the latter is reflected by a mirror. The electron beam is shown to be able to amplify the field of the seed pulse while upshifting its central frequency and reducing its number of cycles. We demonstrate the amplification by means of 1D and 2D particle-in-cell simulations. In order to explain and optimize the process, a model based on fluid theory is proposed. We estimate that using currently available electron beams and terahertz pulse sources, our scheme is able to produce mJ-strong mid-infrared sub-cycle pulses.

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“…This prerequisite can be met if an intense and linearly polarized laser pulse interacts with a solid and leads to the emission of electron bunches within a half cycle of an optical laser field. In particular, the investigation of such kind of laser created dense electron bunches is motivated by the search for a relativistic electron mirror upon which a second laser pulse could be reflected and then is upshifted in frequency due to the relativistic Doppler effect [11,12,[14][15][16][17]. The efficiency of the relativistic backscattering process is dependent on a high density and narrow spectral distribution of the electron layer.…”

mentioning

confidence: 99%