Figure 2 | Scientific Reports

Figure 2

From: Towards Remote Lightning Manipulation by Meters-long Plasma Channels Generated by Ultra-Short-Pulse High-Intensity Lasers

Figure 2

Effective focal length estimation. Calculation of the focal/collapse distance of a telescope as a function of d0 (the distance between the lenses). The selected values of d0 correspond to the actual distances between the converging and the diverging lenses used in the experiment. Right axis (circles) using the BFL and Marburger’s equation and the method described in Eisenmann et al.25 Left axis (solid line and stars) using only the BFL equation.

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