QED vacuum nonlinearity in Laguerre-Gauss beams

Abstract

We investigate in detail the stimulated photon emission in pulse-shaped Laguerre-Gauss beams of arbitrary mode decomposition within the framework of Euler-Heisenberg effective theory. We elaborate on the analytic structure of the photon emission amplitude and identify its dominant and sub-dominant parts by analyzing each signature's phase scaling. We identify three distinct nonlinear signatures: the orbital angular momentum (OAM) flip ($\ell :1\to -1$) , higher harmonic generation ($\ell :1\to 2$) and harmonic reduction ($\ell :1\to 0$). We estimate signal photon yield for each signature under various pulse collision scenarios we explain in detail. We also outline a prospective experimental setup that may probe these signatures.

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Cited by in corpus (3)

• Signatures of vacuum birefringence in low-power flying focus pulses
• On Measuring Stimulated Photon-photon Scattering using Multiple Ultraintense Lasers
• Phase transition analogs in laser collisions with a dark-field setup