Figure 2
Experimental two-dimensional PADs.
The measured two-dimensional PADs in momentum space (pz, p⊥) are shown for O2, N2 and CO2 in the intensities of 0.2–1 × 1014 W/cm2 at 1320 nm. The Keldysh parameters are labeled at the top right corner. The enhanced interference stripes are marked by the white dashed lines.
