Attosecond twisted beams from high-order harmonic generation driven by optical vortices

Hernández-García, Carlos; Rego, Laura; Román, Julio San; Picón, Antonio; Plaja, Luis

doi:10.1017/hpl.2017.1

Cited by 15 publications

(12 citation statements)

References 52 publications

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“…The temporal and spatial properties of these helical attosecond beams can be modified through proper modification of macroscopic phase-matching conditions. 8,31 If HHG is driven by conical refraction beams, several fractional-OAM harmonic vortices can be synthesized to generate structured attosecond light springs, i.e., attosecond helical beams with varying linear polarization along the azimuth. The generation of XUV beams that exhibit varying polarization 32 and OAM may open the route for ultrafast studies of spin to orbit angular momentum exchange in at the nanometer scale.…”

Section: Discussionmentioning

confidence: 99%

Tunable orbital angular momentum beams in the extreme ultraviolet/soft x-ray regimes

Turpin

Rego

Román

et al. 2017

X-Ray Lasers and Coherent X-Ray Sources: Development and Applications

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High-order harmonic generation (HHG) has been recently proven to produce harmonic vortices carrying orbital angular momentum (OAM) in the extreme-ultraviolet (XUV) region from the nonlinear up-conversion of infrared vortex beams. In this work we present two methods to control and extend the OAM content of the harmonic vortices. First, we show that when a driver combination of different vortex modes is used, HHG leads to the production of harmonic vortices with a broad OAM content due to its nonperturbative nature. Second, we show that harmonic vortices with two discrete OAM contributions -so called fractional OAM modes-are generated when HHG is driven by conical refraction beams. Our work offers the possibility of generating tunable OAM beams in the XUV regime, potentially extensible to the soft x rays, overcoming the state of the art limitations for the generation of OAM beams far from the visible domain.

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Section: Discussionmentioning

confidence: 99%

Tunable orbital angular momentum beams in the extreme ultraviolet/soft x-ray regimes

Turpin

Rego

Román

et al. 2017

X-Ray Lasers and Coherent X-Ray Sources: Development and Applications

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“…Phase-matching control of the temporal and spatial properties of attosecond helical beams is explored in Refs. [24,42].…”

Section: Xuv Attosecond Helical Pulsesmentioning

confidence: 99%

Generation and Applications of Extreme-Ultraviolet Vortices

et al. 2017

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Vortex light beams are structures of the electromagnetic field with a spiral phase ramp around a point-phase singularity. These vortices have many applications in the optical regime, ranging from optical trapping and quantum information to spectroscopy and microscopy. The extension of vortices into the extreme-ultraviolet (XUV)/X-ray regime constitutes a significant step forward to bring those applications to the nanometer or even atomic scale. The recent development of a new generation of X-ray sources, and the refinement of other techniques, such as harmonic generation, have boosted the interest of producing vortex beams at short wavelengths. In this manuscript, we review the recent studies in the subject, and we collect the major prospects of this emerging field. We also focus on the unique and promising applications of ultrashort XUV/X-ray vortex pulses.

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“…The ultrashort, ultrahigh intensity pulse laser has attracted tremendous attentions in past three decades attributed to the specific phenomenon generated in interaction between ultrashort, ultrahigh intensity pulse laser and matter, as well as various applications. [1][2][3][4][5][6][7][8] Significant efforts have been made to generate higher peak intensity, and gratifying results have been achieved. The chirped pulse amplification (CPA) system 33,34 plays an important role in the generation of the ultrashort, ultrahigh intensity pulse laser.…”

Section: Introductionmentioning

confidence: 99%

Review of pulse compression gratings for chirped pulse amplification system

et al. 2021

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The ultrashort, ultrahigh intensity pulse laser has been fully developed in past three decades. Chirped pulse amplification (CPA) system plays an important role in the generation of the ultrashort, ultrahigh intensity pulse laser. Pulse compression gratings (PCGs) are the key element of CPA system and determine the performance and lifetime of the whole system. We introduce the principle of CPA system and the performance requirements of PCGs. Then the development status of PCGs, including Au-coated grating, multilayer dielectric grating (MDG), and metal MDG, is fully reviewed. Finally, the development prospect of PCGs in the future is presented. Our study is helpful for comprehensive understanding of PCGs. © 2021 Society of Photo-Optical Instrumentation Engineers (SPIE)

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Attosecond twisted beams from high-order harmonic generation driven by optical vortices

Cited by 15 publications

References 52 publications

Tunable orbital angular momentum beams in the extreme ultraviolet/soft x-ray regimes

Tunable orbital angular momentum beams in the extreme ultraviolet/soft x-ray regimes

Generation and Applications of Extreme-Ultraviolet Vortices

Review of pulse compression gratings for chirped pulse amplification system

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