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We present a simple autocorrelator for picojoule 226–278 nm pulses from femtosecond-picosecond laser oscillators based on two-photon conductivity in sapphire. The sub-20 W peak power sensitivity is over 10X better than previous UV autocorrelators.
In this contribution we report on research of the interaction between optical near-fields of periodic nanostructures and free-electron beams with potential application in future miniaturized laser-based accelerating devices [1, 2], in ultrafast electron microscopy or diffraction experiments [3, 4] or in photon-induced near-field electron microscopy [5]. Here we experimentally demonstrate a technique...
We present the demonstration of high gradient (370 MeV/m) laser acceleration and deflection of sub-relativistic electrons with silicon dual pillar grating structures using both evanescent inverse Smith-Purcell modes and coupled cosh-like modes.
Dielectric laser accelerators are a compact and scalable alternative to radio frequency accelerators. We present the first demonstration of over 200 MeV/m acceleration and deflection gradients with a silicon structure at 96.3keV electron energy.
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