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:10.1038/s41598-023-46325-3

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

Sci Rep. 2023 Nov 1;13(1):18874. doi: 10.1038/s41598-023-46325-3.

Authors

Nicolas Thiré^#¹, Gourab Chatterjee^#^{2

3}, Yoann Pertot⁴, Olivier Albert⁴, Gabriel Karras^{5

6}, Yu Zhang⁵, Adam S Wyatt⁵, Michael Towrie⁵, Emma Springate⁵, Gregory M Greetham⁵, Nicolas Forget^{4

7}

Affiliations

¹ Fastlite, 165 route des cistes, 06600, Antibes, France. nicolas.thire@fastlite.com.
² STFC Central Laser Facility, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0QX, UK. gourab@slac.stanford.edu.
³ SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA. gourab@slac.stanford.edu.
⁴ Fastlite, 165 route des cistes, 06600, Antibes, France.
⁵ STFC Central Laser Facility, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0QX, UK.
⁶ Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, UK.
⁷ CNRS UMR7010 INPHYNI, 1361 route des Lucioles, 06560, Valbonne, France.

^# Contributed equally.

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 [Formula: see text]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-[Formula: see text]m signal or 5 W of 62-fs 2.8-[Formula: see text]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.