Keywordsmulticolor laser; ultrashort optical pulses; four-wave mixing; high-order sideband generation; Raman; nonlinear optics; ultra fast optics; multicolored laser pulse; tunable laser pulse; cascaded four-wave mixing; stimulated Raman scattering; Raman lasing; optical modulators; ultrafast physics; subfemtosecond pulses; parametric oscillator; quasi-phase-matching; arbitrary waveform; ultrashort optical pulses; frequency division; femtosecond spectroscopy; four-wave mixing; tunable laser sidebands; stimulated Raman scattering; resonance enhancement; molecular vibrations; autocorrelation; frequency-resolved optical gating; third harmonic generation; pulse width measurement; ultrafast measurement; subfemtosecond pulses; coherent Raman scattering; molecular modulation; nondegenerate cascaded four-wave mixing; multicolored femtosecond pulse generation; two-octave spanning spectra; few- and single-cycle coherent pulse synthesis; broadband deep-ultraviolet (DUV) and vacuum-ultraviolet (VUV) femtosecond pulses; femtosecond DUV pulse characterization; pulse width; mass spectrometry; ionization; ultraviolet femtosecond laser; n/a