Production of exotic states of matter with the use of X-rays generated by focusing a petawatt laser pulse onto a solid target

Pikuz, S. A.; Faenov, A. Y.; Skobelev, Igor; Фортов, В. Е.

doi:10.3367/ufne.0184.201407e.0759

Cited by 19 publications

(2 citation statements)

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“…The ability of bright photon sources to rapidly remove the inner-shell electrons from atoms has become an exciting area of research in recent years since it encompasses a region that lies on the boundary of atomic and plasma physics. This is in part due to the increasing availability of such radiation-generating sources as XFELs [1][2][3][4][5] and next-generation petawatt laser facilities that can generate high-intensity x-ray fields [6]. These experimental platforms have been used to create novel states of matter with empty inner sub-shells [2][3][4][5][6][7][8][9][10][11], explore the phenomena of continuum lowering [12] and of saturable absorption [13],…”

mentioning

confidence: 99%

“…This is in part due to the increasing availability of such radiation-generating sources as XFELs [1][2][3][4][5] and next-generation petawatt laser facilities that can generate high-intensity x-ray fields [6]. These experimental platforms have been used to create novel states of matter with empty inner sub-shells [2][3][4][5][6][7][8][9][10][11], explore the phenomena of continuum lowering [12] and of saturable absorption [13],…”

mentioning

confidence: 99%

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Evidence of high-n hollow-ion emission from Si ions pumped by ultraintense x-rays from relativistic laser plasma

Colgan

Faenov

Pikuz

et al. 2016

EPL

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We report on the first observation of high-n hollow ions (ions having no electrons in the K or L shells) produced in Si targets via pumping by ultra-intense x-ray radiation produced in intense laser-plasma interactions reaching the radiation dominant kinetics regime (RDKR). The existence of these new types of hollow ions in high-energy density plasma has been found via observation of highly resolved x-ray emission spectra of silicon plasma. This has been confirmed by plasma kinetics calculations, underscoring the ability of powerful radiation sources to fully strip electrons from the innermost shells of light atoms. Hollow-ions spectral diagnostics provide a unique opportunity to characterize powerful x-ray radiation of laboratory and astrophysical plasmas. With the use of this technique we provide evidence for the existence of the RDKR via observation of asymmetry in the observed radiation of hollow ions from the front and rear sides of the target.

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