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. Author manuscript; available in PMC: 2017 Jan 11.
Published in final edited form as: Nat Phys. 2016 Jul 11;12(11):1012–1016. doi: 10.1038/nphys3819

Figure 4. Amplification and suppression of plasma oscillations.

Figure 4

Eprobe (t, τ) traces measured by scanning the electro-optic sampling time τ at selected pump-probe delays t = 0 ps and t = 2 ps. Data are shown along with the same quantity measured at equilibrium (pump off). Plasma oscillations on the trailing edge of the pulses (τ ≳ 2 ps) are highlighted by thicker lines. Colored shadings in a and b indicate amplification and suppression of the JPW amplitude, respectively.