Influence of the spatial extent of the space-charge region in c-Si on the electric-field-induced second-harmonic-generation effect

Abstract

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Effect of the electric field profile on the accuracy of E-FISH measurements in ionization waves

“…An undesirable (and unintended) consequence of using a focused probe beam is that the E-FISH signal becomes more generally a function of the entire applied electric field profile that overlaps with the laser beam path, rather than merely the local field at the beam focus [19,25]. This in turn confounds an absolute field measurement since it requires that the shape of the electric field profile in a plasma be either known beforehand, or be well matched during calibration.…”