BELLA Table Top Laser (3 of 3) (IMAGE)

DOE/Lawrence Berkeley National Laboratory

BELLA Table Top Laser (3 of 3)

Caption

A supersonic jet of helium gas (red, upper panel) greatly increases plasma density upstream of the hydrogen-filled capillary (blue). In the lower panel, the black curve shows density increasing, then falling off downstream. The blue curve indicates the phase velocity of the wake, slowing where the laser pulse (pink) is focused, then increasing again as density decreases.

Credit

image from Wim Leemans

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