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X-rays driven by Single-Cycle, Petawatt Lasers: A Path to Exawatt Pulses - Irvine - CA - USA

October 13, 2016

J. Wheeler gives a special plasma seminar.

To know more on the seminar, click here

High power laser facilities capable of generating petawatt (1015 W) level pulses are producing peak intensities that become applicable to a wide range of applications that includes high energy physics.  State-of-the-art in high power laser systems consistently produce pulses with nearly flat-top spatial modes that suggest a technique for pulse post-compression that could extend the intensities achievable within existing facilities.  A scheme for Thin Film Compression has been recommended by Mourou et al. that relies upon submillimeter films as the nonlinear medium for spectral broadening followed by recompression using dispersion-controlled mirror pairs.  Theoretical simulations demonstrate the potential for such a system and the efficiency of the process presents a route to compress the high power laser toward its wavelength-defined fundamental limit of a few femtoseconds while maintaining Joule-level energy within the pulse At present, small-scale experimental tests of the method are demonstrating the conditions required to implement a full-scale test of the process.  Such high energy, single-cycle pulses show promising production of secondary sources including hard X-ray pulses from solid targets with optimized conditions capable of producing atto/zeptosecond-scale pulses, as well as improvement in laser-driven ion acceleration.