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Related papers: Coherent X-Ray Generation with Laser Driven Ions

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Multiple ionisation and electron capture are found to be vital mechanisms for K and L x-ray emissions along with the direct coulomb ionisation in heavy ion-atom collisions. Naturally, these two mechanisms may also be significant for M x-ray…

Atomic Physics · Physics 2024-07-04 Soumya Chatterjee , Sumana Ghosh , D. Mitra

X-ray devices are far superior to optical ones for providing nanometre spatial and attosecond temporal resolutions. Such resolution is indispensable in biology, medicine, physics, material sciences, and their applications. A bright…

We suggest a new type of the undulator radiation which is generated by an ultra-relativistic particle channeled along a periodically bent crystallographic plane or axis. The electromagnetic radiation arises mainly due to the bending of the…

Accelerator Physics · Physics 2009-11-07 A. V. Korol , A. V. Solov'yov , W. Greiner

The robustness of a structured collimation device is discussed for an intense-laser-produced ion beam. In this paper the ion beam collimation is realized by the solid structured collimation device, which produces the transverse electric…

Plasma Physics · Physics 2015-03-19 S. Kawata , M. Takano , D. Kamiyama , T. Nagashima , D. Barada , Y. J. Gu , X. Li , Q. Yu , Q. Kong , P. X. Wang

Phase-matched harmonic conversion of visible laser light into soft x-rays was demonstrated. The recently developed technique of guided-wave frequency conversion was used to upshift light from 800 nanometers to the range from 17 to 32…

Strong laser-driven magnetic fields are crucial for high-energy-density physics and laboratory astrophysics research, but generation of axial multi-kT fields remains a challenge. The difficulty comes from the inability of a conventional…

Plasma Physics · Physics 2023-04-26 Yin Shi , Alexey Arefiev , Jue Xuan Hao , Jian Zheng

The amplitude of Parametric X-ray radiation emitted coherently by a bunch of electrons crossing a crystal (CPXR) is calculated. When the bunch density is modulated with a longitudinal period close to the X-ray wavelenght, constructive…

Accelerator Physics · Physics 2007-05-23 Xavier Artru , Karo A. Ispirian

A diamond-like carbon circular target is proposed to improve the $\gamma$-ray emission and pair production with lasers intensity of $8\times 10^{22} ~\mathrm{W/cm^2}$ by using two-dimensional particle-in-cell simulations with quantum…

Plasma Physics · Physics 2019-09-04 Ya-Juan Hou , Bai-Song Xie , Chong Lv , Feng Wan , Li Wang , Nureli Yasen , Hai-Bo Sang , Guo-Xing Xia

The equations, which describe generation of coherent radiation by a relativistic electron bunch moving in a photonic crystal, are obtained. Spectral-angular distribution of radiation and intensity of radiation in time-domain are derived.…

Accelerator Physics · Physics 2022-01-25 V. G. Baryshevsky

Cascading stages of seeded free electron laser (FEL) is a promising way to produce fully coherent X-ray radiations. We study a new approach to produce coherent hard X-rays by cascading the recently proposed phase-merging enhanced harmonic…

Accelerator Physics · Physics 2016-09-21 Guanglei Wang , Weiqing Zhang , Xueming Yang , Chao Feng , Haixiao Deng

A detailed derivation of the master equation of the cavity radiation of a coherently prepared $Y$-shaped four-level correlated emission laser is presented. The outline of the procedures that can be employed in analytically solving the…

Quantum Physics · Physics 2015-05-28 Sintayehu Tesfa

Crystallization and radiation of accelerator beams is considered. For the first time it is shown that crystallization conditions for charged particle beams differs from those of plasma. Crystallization conditions of charged relativistic…

Optics · Physics 2007-05-23 L. A. Gevorgian , R. V. Tumanian

Ion acceleration by using a laser pulse irradiating a disk target which includes hydrogen and carbon is examined using three-dimensional particle-in-cell simulations. It is shown that over $200$ MeV protons can be generated by using a…

Plasma Physics · Physics 2015-06-18 Toshimasa Morita

Relativistically-intense laser beam with large field gradient ("laser gate") enables strong inelastic scattering of electrons crossing the beam. This process allows for multi-MeV electron net acceleration per pass within the wavelength…

Atomic Physics · Physics 2009-06-04 A. E. Kaplan , A. L. Pokrovsky

Attosecond pulses of coherent extreme ultraviolet (XUV) light are instrumental for investigating subatomic dynamics and can be produced using a free-electron laser (FEL). It has been suggested that an optical FEL, which employs a laser…

Several correlation and interference effects in strong-field physics are investigated. We show that the interference of continuum wave packets can be the dominant mechanism of high-harmonic generation (HHG) in the over-the-barrier regime.…

The change of the probability of proton emission in nuclear photoeffect due to an intense coherent (laser) field is discussed near the threshold, where the hindering effect of the Coulomb field of the remainder nucleus is essential. The…

Nuclear Theory · Physics 2013-06-26 Péter Kálmán , Dániel Péter Kis , Tamás Keszthelyi

The combination of high-order harmonic generation (HHG) with resonant XUV excitation of a core electron into the transient valence vacancy that is created in the course of the HHG process is investigated theoretically. In this setup, the…

Atomic Physics · Physics 2023-01-10 Christian Buth , Markus C. Kohler , Joachim Ullrich , Christoph H. Keitel

Modern intense ultrafast pulsed lasers generate an electric field of sufficient strength to permit tunnel ionization of the valence electrons in atoms. This process is usually treated as a rapid succession of isolated events, in which the…

In this study the generation of energetic coherent extreme ultraviolet (XUV) radiation with controlled polarization, is reported. The XUV radiation results from the process of high harmonic generation (HHG), in a gas phase atomic medium,…

Atomic Physics · Physics 2021-06-17 E. Vassakis , I. Orfanos , I. Liontos , D. Charalambidis , P. Tzallas , E. Skantzakis