Determining the Carrier-Envelope Phase of Intense Few-Cycle Laser Pulses

Mackenroth, Felix; Piazza, A. Di; Keitel, Christoph H.

doi:10.1103/physrevlett.105.063903

Cited by 133 publications

(176 citation statements)

References 24 publications

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“…On this respect, we observe that, based on the relation (34), we have proposed in [36] a method for determining the CEP of laser pulses with…”

Section: A High Intensitiesmentioning

confidence: 99%

“…Also, in [25], the authors consider effects of the absolute phase [the so-called carrier envelope phase (CEP)] of few-cycle pulses and its impact on the emitted photon energy spectra. Here we also consider the effect of CEP on the angular distribution of the emitted radiation (see also [36]). …”

Section: Introductionmentioning

confidence: 99%

“…Compton scattering offers a thorough way of determining the precise temporal shape of few-cycle laser pulses [36].…”

Section: Introductionmentioning

confidence: 99%

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Nonlinear Compton scattering in ultrashort laser pulses

2011

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A detailed analysis of the photon emission spectra of an electron scattered by a laser pulse containing only very few cycles of the carrying electromagnetic field is presented. The analysis is performed in the framework of strong-field quantum electrodynamics, with the laser field taken into account exactly in the calculations. We consider different emission regimes depending on the laser intensity, placing special emphasis on the regime of one-cycle beams and of high laser intensities, where the emission spectra depend nonperturbatively on the laser intensity. In this regime, we, in particular, present an accurate stationary phase analysis of the integrals that are shown to determine the computed emission spectra. The emission spectra show significant differences with respect to those in a long pulsed or monochromatic laser field:The emission lines obtained here are much broader, and more important, no dressing of the electron mass is observed.

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“…On this respect, we observe that, based on the relation (34), we have proposed in [36] a method for determining the CEP of laser pulses with…”

Section: A High Intensitiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nonlinear Compton scattering in ultrashort laser pulses

2011

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“…Other aspects of nonlinear Compton scattering in short laser pulses that affect inverse Compton x-ray sources include the prospects for the generation of x-ray frequency combs [51,52], asymmetries in the angular distributions [53,54], spin- [35,36,55,56] and higher-order QED effects [57][58][59][60][61]. Moreover, using vortex beams that carry orbital angular momentum in a Compton backscattering set-up allows to generate high-energy vortex beams [62] or to control the spatial distribution of the generated x-rays [63].…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Narrowband inverse Compton scattering x-ray sources at high laser intensities

et al. 2015

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Narrowband x-and gamma-ray sources based on the inverse Compton scattering of laser pulses suffer from a limitation of the allowed laser intensity due to the onset of nonlinear effects that increase their bandwidth. It has been suggested that laser pulses with a suitable frequency modulation could compensate this ponderomotive broadening and reduce the bandwidth of the spectral lines, which would allow to operate narrowband Compton sources in the high-intensity regime. In this paper we, therefore, present the theory of nonlinear Compton scattering in a frequency modulated intense laser pulse. We systematically derive the optimal frequency modulation of the laser pulse from the scattering matrix element of nonlinear Compton scattering, taking into account the electron spin and recoil. We show that, for some particular scattering angle, an optimized frequency modulation completely cancels the ponderomotive broadening for all harmonics of the backscattered light. We also explore how sensitive this compensation depends on the electron beam energy spread and emittance, as well as the laser focusing.

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“…Thus, it is physically justified to describe the driving field as a pulsed plane wave [7]. This approach has been used recently in connection to not only Thomson and Compton scattering [8][9][10][11][12][13][14][15][16][17][18], but also to other strong-field processes such as * E-mail address: Katarzyna.Krajewska@fuw.edu.pl…”

Section: Introductionmentioning

confidence: 99%

Supercontinuum and ultrashort-pulse generation from nonlinear Thomson and Compton scattering

2014

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Nonlinear Thomson and Compton processes, in which energetic electrons collide with an intense optical pulse, are investigated in the framework of classical and quantum electrodynamics. Spectral modulations of the emitted radiation, appearing as either oscillatory or pulsating structures, are observed and explained. It is shown that both processes generate a bandwidth radiation spanning the range of few MeV, which occurs in a small cone along the propagation direction of the colliding electrons. Most importantly, these broad bandwidth structures are temporarily coherent which proves that Thomson and Compton processes lead to generation of a supercontinuum. It is demonstrated that the radiation from the supercontinuum can be synthesized into zeptosecond (possibly even yoctosecond) pulses. Thus, confirming that Thomson and Compton scattering can be used as novel sources of an ultra-short radiation, opening routes to new physical domains for strong laser physics.

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Determining the Carrier-Envelope Phase of Intense Few-Cycle Laser Pulses

Cited by 133 publications

References 24 publications

Nonlinear Compton scattering in ultrashort laser pulses

Nonlinear Compton scattering in ultrashort laser pulses

Narrowband inverse Compton scattering x-ray sources at high laser intensities

Supercontinuum and ultrashort-pulse generation from nonlinear Thomson and Compton scattering

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