. "Abstract. Intense picosecond light pulses of a mode-locked Nd: glass laser at \u03BBL=1054 nm (fundamental wavelength) and \u03BBSH=527 nm (second harmonic wavelength) are passed through a sample of D2O under self-focusing conditions. Spectrally structured superbroadened, spatially bell-shaped emission in the forward direction is obtained. Primary generation processes are pump-pulse-degenerate stimulated parametric four-photon interaction (\u03C91 + \u03C91 \u2192 \u03C93 + \u03C94) and stimulated Raman scattering (\u03C91 \u2192 \u03C9R + \u03C9\u03C5), which occur concurrently (\u03C91=\u03C9L or \u03C9SH angular pump frequency, #x03C9;R first Stokes frequency, #x03C9;\u03C5 signal frequency, #x03C9;3 signal frequency, #x03C9;4 idler frequency). The parametric four-photon interaction occurs under collinear non-phase-matched conditions and under longitudinally phase-matched, transversally non-phase-matched (\u010Cerenkov-like) conditions. Subsequent interaction processes are pump-pulse-nondegenerate four-photon interaction of the type \u03C91 + \u03C9R \u2192 \u03C93\u2032 + \u03C94\u2032, coherent antiStokes Raman scattering (CARS, \u03C91 + \u03C91 \u2212 \u03C94 \u2192 \u03C93), inverse Raman scattering (\u03C9A + \u03C91 + \u03C9\u03C5), and cascading light up-conversion of the type \u03C91 + \u03C9(i) \u2212 \u03C9R \u2192 \u03C9(i+1)."@en . . . . "1993" . . . . . . . . "BF00420689" . . . "Spectral superbroadening of self-focused picosecond laser pulses in D2O"@en . . .