Phase-locking of time-delayed attosecond XUV pulse pairs
Lisa-Marie Koll, Laura Maikowski, Lorenz Drescher, Marc J. J. Vrakking, Tobias Witting
Abstract
We present a setup for the generation of phase-locked attosecond extreme ultraviolet (XUV) pulse pairs. The attosecond pulse pairs are generated by high harmonic generation (HHG) driven by two phase-locked near-infrared (NIR) pulses that are produced using an actively stabilized Mach-Zehnder interferometer compatible with near-single cycle pulses. The attosecond XUV pulses can be delayed over a range of 400 fs with a sub-10-as delay jitter. We validate the precision and the accuracy of the setup by XUV optical interferometry and by retrieving the energies of Rydberg states of helium in an XUV pump-NIR probe photoelectron spectroscopy experiment.
Topics & Concepts
AttosecondExtreme ultravioletPhysicsOpticsInterferometryHigh harmonic generationPulse (music)LaserRydberg formulaSpectroscopyUltravioletRange (aeronautics)HarmonicAtomic physicsBandwidth-limited pulseFemtosecond pulse shapingUltrashort pulseHeliumPulse durationPulse shapingFrequency combAstronomical interferometerNonlinear opticsLaser-Matter Interactions and ApplicationsLaser-Plasma Interactions and DiagnosticsParticle Accelerators and Free-Electron Lasers