Figure 4 | Scientific Reports

Figure 4

From: A versatile high-average-power ultrafast infrared driver tailored for high-harmonic generation and vibrational spectroscopy

Figure 4

Actively CEP-stabilised HHG modes. (a) Spectra of the 1.75-\(\upmu \)m and the 2.8-\(\upmu \)m modes. (b) Near-transform-limited pulse durations (FWHM) of 49 fs and 62 fs, respectively, measured with an SHG-FROG. (c) Active CEP stabilisation using an f–2f interferometer, capable of single-shot detection (at 10 kHz), and the Dazzler to produce global CEP offsets with rms fluctuations of 86 mrad and 73 mrad over nearly 10 h.

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