Scaling High-Order Harmonic Generation from Laser-Solid Interactions to Ultrahigh Intensity

Dollar, F.; Cummings, Paul; Chvykov, V.; Willingale, L.; Vargas, M.; Yanovsky, V.; Zulick, C.; Maksimchuk, A.; Thomas, Alexander; Krushelnick, K.

doi:10.1103/physrevlett.110.175002

Cited by 80 publications

(60 citation statements)

References 39 publications

(29 reference statements)

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“…4b where the integrated energy within the 100 mrad cone is shown, there is a maximum efficiency for an optimum scalelength of L ≃ 0.2 . This optimum scalelength value is in very good agreement with the value reported by Dollar et al [32]. Additionally, the absolute value of the efficiency for this scalelength agrees within the error with the measurement.…”

Section: Comparison With Simulationssupporting

confidence: 81%

“…This is attributed to the interplay between pre-pulse level and pre-plasma formation. As it is pointed out by Dollar et al [32], small changes in the pre-pulse intensity can cause substantial variation in the scalelength of the produced density profile. It is to be noted that by attenuating the laser beam, the contrast did not change significantly; therefore, the pre-pulse level and the corresponding pre-plasma size were reduced as well.…”

Section: Resultsmentioning

confidence: 98%

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Multi-μJ harmonic emission energy from laser-driven plasma

et al. 2014

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Section: Comparison With Simulationssupporting

confidence: 81%

Section: Resultsmentioning

confidence: 98%

Multi-μJ harmonic emission energy from laser-driven plasma

et al. 2014

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“…One of the most important parameters that controls the relative efficiencies of the harmonic generation mechanisms, and hence all the above mentioned distinctive features, is the ratio of plasma density gradient length to the laser wavelength, l L . The SHHG process is observed to sensitively depend on the sharpness of the PM [92,130,131].…”

Section: 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.

156

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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“…In the present mode, the redshifting induced by the surface moving ahead into the propagating direction is not considered. We know the driving laser intensity can be scaled to 10 21 W=cm 2 [32] using plasma as the nonlinear medium to generate ultrashort pulses. If the laser pulse is ultrarelativistic, the redshifting effect is heavy and should be included.…”

mentioning

confidence: 99%

“…Actually, as an alternative of the incident pulse, the loworder vortex pulse generated with the recently proposed light fan regime [31] may be applied in the present scheme. As for the measurement of the temporal characteristics and OAM of the harmonics from the scheme, some alternative methods such as laser-assisted XUV photoionization together with photoelectron spectroscopy [36] or a flatfield EUV spectrometer [32] and a reference beam (by interference with a flat-phase reference) [17] could be applied as in the case of the gas harmonics. .…”

mentioning

confidence: 99%

Generation of Intense High-Order Vortex Harmonics

et al. 2015

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This Letter presents for the first time a scheme to generate intense high-order optical vortices that carry orbital angular momentum in the extreme ultraviolet region based on relativistic harmonics from the surface of a solid target. In the three-dimensional particle-in-cell simulation, the high-order harmonics of the high-order vortex mode is generated in both reflected and transmitted light beams when a linearly polarized Laguerre-Gaussian laser pulse impinges on a solid foil. The azimuthal mode of the harmonics scales with its order. The intensity of the high-order vortex harmonics is close to the relativistic region, with the pulse duration down to attosecond scale. The obtained intense vortex beam possesses the combined properties of fine transversal structure due to the high-order mode and the fine longitudinal structure due to the short wavelength of the high-order harmonics. In addition to the application in high-resolution detection in both spatial and temporal scales, it also presents new opportunities in the intense vortex required fields, such as the inner shell ionization process and high energy twisted photons generation by Thomson scattering of such an intense vortex beam off relativistic electrons. Light beams can exhibit helical wave fronts: the light phase "winds up" around the spatial beam center and forms an optical vortex. The phase wind imprints an orbital angular momentum (OAM) to the beam [1,2]. The characteristic helical phase profiles of optical vortices are described by expðilϕÞ multipliers, where ϕ is the azimuthal coordinate and the integer number l is their topological charge, corresponding to the order of the mode. The total phase accumulated in one full annular loop is 2πl, and an OAM of lℏ is carried by per photon for an l-order linearly polarized optical vortex beam. Based on this, the high-order optical vortex beam provides a powerful tool in optical information to investigate the entanglement state [3] and for studies of cold atoms and enhancing atomic transition [4][5][6][7].In order to provide more quantum information and for other potential applications, high-order vortex beams are required. However, limited by the etching resolution, the common method using forked diffraction grating [8] or the spiral phase plates [1] to generate the optical vortex beams is difficult to be used to obtain them. Many studies have attempted to generate light beams with OAM. For example, a relativistic electron beam can act as a mode converter that interacts with a laser in a helical undulator [9-11] and high-energy photons in MeV-GeV with OAM can be obtained by Compton backscattering of twisted laser photons off relativistic electrons [12], where the mode of the Laguerre-Gaussian (LG) pulse remains unchanged. In addition, in view of the gas high-order harmonics generation (HHG) scheme [13][14][15], because of the confluence of OAM and HHG, this scheme has an extraordinarily promising perspective. The observed harmonics possess a helical wave front in both experimental [16,17] and theoretical...

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Scaling High-Order Harmonic Generation from Laser-Solid Interactions to Ultrahigh Intensity

Cited by 80 publications

References 39 publications

Multi-μJ harmonic emission energy from laser-driven plasma

Multi-μJ harmonic emission energy from laser-driven plasma

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

Generation of Intense High-Order Vortex Harmonics

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