Fig. 3: Quantitative ne-dependence of CTS.
From: Plasma electron acceleration driven by a long-wave-infrared laser
a Spectral Stokes/anti-Stokes shift vs. ne. Data points: observed shifts for the seven ne values in Fig. 2b. Solid curve: plasma wavelength vs. ne. Green shading: no sidebands observed. Red shading: no measurements attempted because of strong pump back-reflections from ionized gas jet. b Probe sideband intensity vs. ne for PL = 0.5 TW and Δt ≈ 0. Black data points: measured average probe Stokes/anti-Stokes intensities. Colored data points and connecting lines: simulated pump Stokes (blue) and anti-Stokes (orange) sideband intensities at ne = 5, 7, 9 and 10 × 1017 cm−3. Error bars in both a and b: 1 standard deviation of variation among repeated runs.
