Mireille L. Bougeard

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The interaction of laser pulses with thin grating targets, having a periodic groove at the irradiated surface, is experimentally investigated. Ultrahigh contrast (~10(12)) pulses allow us to demonstrate an enhanced laser-target coupling for the first time in the relativistic regime of ultrahigh intensity >10(19) W/cm(2). A maximum increase by a factor of(More)
Forty eight minor planets have been observed by the Hipparcos satellite. Pooling their precise position may allow to investigate a possible rotation between the dynamical reference frame and the ICRS-Hipparcos Reference system. Due to the repartition of the observations, ill-conditioning of the global system and outliers simultaneously occur. So, a direct(More)
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