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Extreme ultraviolet light source at a megahertz repetition rate based on high-harmonic generation inside a mode-locked thin-disk laser oscillator
Auteur(s)
Labaye, François
Diebold, A
Modsching, Norbert Paul
Emaury, F
Graumann, I.J
Phillips, C.R
Saraceno, C.J
Kränkel, C
Keller, Ursula
In
Optics Letters, Optical Society of America, 2017/42/24/5170-5173
Résumé
We demonstrate a compact extreme ultraviolet (XUV) source based on high-harmonic generation (HHG) driven directly inside the cavity of a mode-locked thin-disk laser oscillator. The laser is directly diode-pumped at a power of only 51 W and operates at a wavelength of 1034 nm and a 17.35 MHz repetition rate. We drive HHG in a high-pressure xenon gas jet with an intracavity peak intensity of 2.8×10<sup>13</sup> W/cm<sup>2</sup> and 320 W of intracavity average power. Despite the high-pressure gas jet, the laser operates at high stability. We detect harmonics up to the 17th order (60.8 nm, 20.4 eV) and estimate a flux of 2.6×10<sup>8</sup> photons/s for the 11th harmonic (94 nm, 13.2 eV). Due to the power scalability of the thin-disk concept, this class of compact XUV sources has the potential to become a versatile tool for areas such as attosecond science, XUV spectroscopy, and high-resolution imaging.
Identifiants
Type de publication
journal article
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