Attosecond plasma lens (IMAGE)
Caption
Fig. 1: a, An attosecond pulse enters a capillary, where a strong electrical pulse generates a hydrogen plasma. As the electrons move toward the capillary walls, they form a concave lens that focuses the attosecond pulse. b, The attosecond pulses are focused in the presence of plasma.
Credit
MBI / Evaldas Svirplys
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