Temperature enhancement of Xe(L) x-ray amplifier (λ ∼ 2.9 Å) emission

Borisov, A. B.; Zhang, Ping; Racz, Ervin; McCorkindale, John C; Khan, S. F.; Poopalasingam, Sankar; Zhao, Jinhua; Rhodes, C. K.

doi:10.1088/0953-4075/40/22/f01

Cited by 13 publications

(18 citation statements)

References 13 publications

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“…A non-equilibrium dynamics model of xenon was constructed to determine conditions under which population inversions would be generated within several inner-shell pathways that would produce comparable amounts of X-ray amplification as had been observed experimentally at w2.8 Å [24,28] (and the references therein). In the modeling of these experiments, clusters of xenon atoms were found to be rapidly stripped of all N-shell electrons on a femtosecond time scale by a light pulse of 5 eV photons focused to peak intensities slightly greater than 10 19 W/cm 2 .…”

Section: Discussionmentioning

confidence: 99%

“…[24,28] experiments, the expansion and heating dynamics were coupled to the ionization dynamics as depicted schematically in Fig. 5.…”

Section: The Coupling Cluster and Ionization Dynamics Laserecluster mentioning

confidence: 99%

“…1 in Ref. [28]. However, there remains a controversy over whether the interpretation of amplified emission is correct.…”

Section: Introductionmentioning

confidence: 99%

“…Clusters can be used as a compact source of X-rays, incoherent as well as coherent, and of fast ions capable of driving a fusion reaction in deuterium plasmas. In one set of xenon cluster experiments, in particular, amplification of w2.8 Å X-rays has been observed [28]. X-ray amplification in cluster media is a phenomenon of critical importance and may lead to applications such as EUV lithography, EUV and X-ray microscopy, X-ray tomography, and variety of applications in biology and material sciences.…”

mentioning

confidence: 99%

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Intense ultrashort laser–Xe cluster interaction

Davis

Whitney²,

Petrova

et al. 2012

High Energy Density Physics

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Section: Discussionmentioning

confidence: 99%

“…[24,28] experiments, the expansion and heating dynamics were coupled to the ionization dynamics as depicted schematically in Fig. 5.…”

Section: The Coupling Cluster and Ionization Dynamics Laserecluster mentioning

confidence: 99%

“…1 in Ref. [28]. However, there remains a controversy over whether the interpretation of amplified emission is correct.…”

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Intense ultrashort laser–Xe cluster interaction

Davis

Whitney²,

Petrova

et al. 2012

High Energy Density Physics

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“…that defines the peak electric field E for the onset of relativistic motions for elections with mass m and charge e driven at angular frequency ω, (b) the vacuum pair creation limit, the upper value bounding the achievable intensity that is associated with ultrarelativistic electron/positron cascades [97], (c) the intensity I  4.6 × 10 29 W/cm 2 corresponding to the Schwinger/Heisenberg limit [98,99], and (d) the point characterizing the intensity of saturated amplification with the Xe(L) hollow atom system [38,39,[61][62][63][64][65][66].…”

mentioning

confidence: 99%

Rewriting the rules governing high intensity interactions of light with matter

Borisov¹,

McCorkindale²,

Poopalasingam³

et al. 2016

Rep. Prog. Phys.

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The trajectory of discovery associated with the study of high-intensity nonlinear radiative interactions with matter and corresponding nonlinear modes of electromagnetic propagation through material that have been conducted over the last 50 years can be presented as a landscape in the intensity/quantum energy [I-ħω] plane. Based on an extensive series of experimental and theoretical findings, a universal zone of anomalous enhanced electromagnetic coupling, designated as the fundamental nonlinear domain, can be defined. Since the lower boundaries of this region for all atomic matter correspond to ħω ~ 10(3) eV and I ≈ 10(16) W cm(-2), it heralds a future dominated by x-ray and γ-ray studies of all phases of matter including nuclear states. The augmented strength of the interaction with materials can be generally expressed as an increase in the basic electromagnetic coupling constant in which the fine structure constant α → Z(2)α, where Z denotes the number of electrons participating in an ordered response to the driving field. Since radiative conditions strongly favoring the development of this enhanced electromagnetic coupling are readily produced in self-trapped plasma channels, the processes associated with the generation of nonlinear interactions with materials stand in natural alliance with the nonlinear mechanisms that induce confined propagation. An experimental example involving the Xe (4d(10)5s(2)5p(6)) supershell for which Z ≅ 18 that falls in the specified anomalous nonlinear domain is described. This yields an effective coupling constant of Z(2)α ≅ 2.4 > 1, a magnitude comparable to the strong interaction and a value rendering as useless conventional perturbative analyses founded on an expansion in powers of α. This enhancement can be quantitatively understood as a direct consequence of the dominant role played by coherently driven multiply-excited states in the dynamics of the coupling. It is also conclusively demonstrated by an abundance of data that the utterly peerless champion of the experimental campaign leading to the definition of the fundamental nonlinear domain was excimer laser technology. The basis of this unique role was the ability to satisfy simultaneously a triplet (ω, I, P) of conditions stating the minimal values of the frequency ω, intensity I, and the power P necessary to enable the key physical processes to be experimentally observed and controllably combined. The historical confluence of these developments creates a solid foundation for the prediction of future advances in the fundamental understanding of ultra-high power density states of matter. The atomic findings graciously generalize to the composition of a nuclear stanza expressing the accessibility of the nuclear domain. With this basis serving as the launch platform, a cadenza of three grand challenge problems representing both new materials and new interactions is presented for future solution; they are (1) the performance of an experimental probe of the properties of the vacuum state associated with the dark ener...

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Stable Power Compression with Efficient Relativistic UV Channel Formation in Cluster Targets

Borisov

Rhodes

2014

Planar Waveguides and Other Confined Geometries

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Temperature enhancement of Xe(L) x-ray amplifier (λ ∼ 2.9 Å) emission

Cited by 13 publications

References 13 publications

Intense ultrashort laser–Xe cluster interaction

Intense ultrashort laser–Xe cluster interaction

Rewriting the rules governing high intensity interactions of light with matter

Stable Power Compression with Efficient Relativistic UV Channel Formation in Cluster Targets

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