Table-Top Milliwatt-Class Extreme Ultraviolet High Harmonic Light Source

Abstract

Extreme ultraviolet (XUV) lasers are essential for the investigation of fundamental physics. Especially high repetition rate, high photon flux sources are of major interest for reducing acquisition times and improving signal to noise ratios in a plethora of applications. Here, an XUV source based on cascaded frequency conversion is presented, which delivers due to the drastic better single atom response for short wavelength drivers, an average output power of (832 +- 204) μW at 21.7 eV. This is the highest average power produced by any HHG source in this spectral range surpassing precious demonstrations by more than a factor of four. Furthermore, a narrow-band harmonic at 26.6 eV with a relative energy bandwidth of only ΔE/E= 1.8 x 10E-3 has been generated, which is of high interest for high precision spectroscopy experiments.

arXiv comment4 Pages, 4 Pictures

References in corpus (5)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• Direct Frequency Comb Spectroscopy in the Extreme Ultraviolet
• High photon flux table-top coherent extreme ultraviolet source
• 1kW 1mJ 8-channel ultrafast fiber laser
• Enhancing narrowband high order harmonic generation by Fano resonances

Cited by in corpus (5)

• Ultra-short-pulse high-average-power Megahertz-repetition-rate coherent extreme-ultraviolet light source
• Wavelength-scale ptychographic coherent diffractive imaging using a high-order harmonic source
• High-flux 100-kHz attosecond pulse source driven by a high average power annular laser beam
• High-average-power femtosecond laser at 258 nm
• Bright, polarization-tunable high repetition rate extreme ultraviolet beamline for coincidence electron-ion imaging