Fig. 3: Experimental (circles) and semi-classically simulated (dashed lines) intensity scaling of different harmonic orders.
From: Enhancing the efficiency of high-order harmonics with two-color non-collinear wave mixing in silica
a Only the intensity of the 400-nm pulse is scaled (the ratio I400/I800 varies between 0.01:1 and 0.4:1 from left to right on the horizontal intensity axis, I800 = 10.5 TW/cm2). b Only the intensity of the 800-nm pulse is scaled (the ratio I800/I400 varies between 0.5:1 to 10.3:1 from left to right on the horizontal intensity axis, I400 = 1.6 TW/cm2). c The total intensity of two colors is scaled (the ratio I800/I400 is 3.3:1). For better visualization of the WMOs, the curves are vertically shifted. Harmonic orders (H7-11) refer to multiples of the 800-nm fundamental. The color coding is consistent across the panels.
