Fig. 3: Measured electric field of self-compressed soliton and RDW.
a, The measured and simulated electric field of the soliton plus RDW for optimal CEP. b, The intensity representation of the fields shown in a highlights the short pulse duration of the generated ~350 as light transient (E2). The intensity envelope is 0.83 fs. c, The electric field of the Si-wafer filtered pulse, with E2 FWHM of 0.9 fs and intensity envelope of 1.39 fs. d, The Fourier transform (squared amplitude and spectral phase) of the Si-wafer filtered pulse versus the wavelength, together with the spectrum measured with a calibrated UV spectrometer, clearly showing the RDW around 235 nm. The spectral range reaches from 150 nm (2 PHz) to approximately 1,100 nm (0.27 PHz).
