Scientific Reports (Nov 2023)

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

  • Nicolas Thiré,
  • Gourab Chatterjee,
  • Yoann Pertot,
  • Olivier Albert,
  • Gabriel Karras,
  • Yu Zhang,
  • Adam S. Wyatt,
  • Michael Towrie,
  • Emma Springate,
  • Gregory M. Greetham,
  • Nicolas Forget

DOI
https://doi.org/10.1038/s41598-023-46325-3
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 6

Abstract

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Abstract We report on an ultrafast infrared optical parametric chirped-pulse amplifier (OPCPA), pumped by a 200-W thin-disk Yb-based regenerative amplifier at a repetition rate of 100 kHz. The OPCPA is tunable in the spectral range 1.4–3.9 $$\upmu $$ μ m, generating up to 23 W of < 100-fs signal and 13 W of < 200-fs idler pulses for infrared spectroscopy, with additional spectral filtering capabilities for Raman spectroscopy. The OPCPA can also yield 19 W of 49-fs 1.75- $$\upmu $$ μ m signal or 5 W of 62-fs 2.8- $$\upmu $$ μ m idler pulses with active carrier-to-envelope-phase (CEP) stabilisation for high-harmonic generation (HHG). We illustrate the versatility of the laser design, catering to various experimental requirements for probing ultrafast science.