Towards optical polarization control of laser-driven proton acceleration in foils undergoing relativistic transparency

Control of the collective response of plasma particles to intense laser light is intrinsic to relativistic optics, the development of compact laser-driven particle and radiation sources, as well as investigations of some laboratory astrophysics phenomena. We recently demonstrated that a relativistic plasma aperture produced in an ultra-thin foil at the focus of intense laser radiation can induce diffraction, enabling polarization-based control of the collective motion of plasma electrons. Here we show that under these conditions the electron dynamics are mapped into the beam of protons accelerated via strong charge-separation-induced electrostatic fields. It is demonstrated experimentally and numerically via 3D particle-in-cell simulations that the degree of ellipticity of the laser polarization strongly influences the spatial-intensity distribution of the beam of multi-MeV protons. The influence on both sheath-accelerated and radiation pressure-accelerated protons is investigated. This approach opens up a potential new route to control laser-driven ion sources.

Luther's reply to King Henry VIII, now first Englished after the lapse of four centuries,

Mode of access: Internet.

Luther's reply to King Henry VIII, now first Englished after the lapse of four centuries,

Mode of access: Internet.

La pelota no se mancha: Un estudio histórico sobre el desarrollo y la política en FIFA

Esta investigación se centra en la Fédération Internationale de Football Association (FIFA) como organización política. Intenta responder dos interrogantes primordiales: 1) ¿cómo la FIFA ha constituido el poder que tiene actualmente y, así, hacerse del monopolio indiscutido del fútbol? Y 2) ¿cómo ha cambiado en el tiempo la política interna de FIFA y su vínculo con la política internacional? Para lograr esto, se realiza un estudio histórico, basado principalmente en documentos, que intenta caracterizar y analizar los cambios de la organización en el tiempo. Se enfatizan las últimas dos presidencias de FIFA, de João Havelange y Joseph Blatter, como casos de estudio.

The debates in the several state conventions on the adoption of the federal Constitution as recommended by the general convention at Philadelphia, in 1787. Together with the Journal of the federal convention, Luther Martin's letter, Yates's minutes, Congressional opinions, Virginia and Kentucky resolutions of '98-'99, and other illustrations of the Constitution.

Mode of access: Internet.

The debates in the several state conventions on the adoption of the Federal constitution, as recommended by the general convention at Philadelphia in 1787 : together with the journal of the Federal convention, Luther Martin's letter, Yates' minutes, Congressional opinions, Virginia & Kentucky resolution of '98-'99 and other illustrations of the Constitution /

Mode of access: Internet.

Bibliography on atomic energy levels and spectra, July 1968 through June 1971

"CODEN: XNBSAV."