A dark-field setup for the measurement of light-by-light scattering with high-intensity lasers
Physical Review D(2024)
摘要
We put forward a concrete experimental setup allowing to measure
light-by-light scattering in the collision of two optical high-intensity laser
beams at state-of-the-art high-field facilities operating petawatt class laser
systems. Our setup uses the same focusing optics for both laser beams to be
collided and employs a dark-field approach for the detection of the
single-photon-level nonlinear quantum vacuum response in the presence of a
large background. Based on an advanced modeling of the colliding laser fields,
we in particular provide reliable estimates for the prospective numbers of
signal photons scattered into the dark-field for various laser polarizations.
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