High-order harmonic generation with mu J laser pulses at high repetition rates

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High-order harmonic generation with mu J laser pulses at high repetition rates. / Heyl, Christoph; Guedde, J.; L'Huillier, Anne; Hoefer, U.

In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 45, No. 7, 074020, 2012.

Research output: Contribution to journalArticle

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TY - JOUR

T1 - High-order harmonic generation with mu J laser pulses at high repetition rates

AU - Heyl, Christoph

AU - Guedde, J.

AU - L'Huillier, Anne

AU - Hoefer, U.

PY - 2012

Y1 - 2012

N2 - We investigate the generation of high-order harmonics using laser pulse energies in the few-mu J range at high repetition rates. We analyse how the conversion efficiency is influenced by the tight focusing geometry required for the generation of high-order harmonics under these conditions. A generalized phase-matching model allows us to discuss macroscopic phase effects independent of focal length. We present experimental results using the example of a 100 kHz laser system to generate harmonics up to the 27th order in Ar with a photon flux up to 3 x 10(9) photons s(-1) into one harmonic order. High-repetition-rate femtosecond or even attosecond light sources open new possibilities for a broad range of applications such as time-resolved photoelectron spectroscopy and microscopy in the extreme ultraviolet regime.

AB - We investigate the generation of high-order harmonics using laser pulse energies in the few-mu J range at high repetition rates. We analyse how the conversion efficiency is influenced by the tight focusing geometry required for the generation of high-order harmonics under these conditions. A generalized phase-matching model allows us to discuss macroscopic phase effects independent of focal length. We present experimental results using the example of a 100 kHz laser system to generate harmonics up to the 27th order in Ar with a photon flux up to 3 x 10(9) photons s(-1) into one harmonic order. High-repetition-rate femtosecond or even attosecond light sources open new possibilities for a broad range of applications such as time-resolved photoelectron spectroscopy and microscopy in the extreme ultraviolet regime.

U2 - 10.1088/0953-4075/45/7/074020

DO - 10.1088/0953-4075/45/7/074020

M3 - Article

VL - 45

JO - Journal of Optics B: Quantum and Semiclassical Optics

JF - Journal of Optics B: Quantum and Semiclassical Optics

SN - 0953-4075

IS - 7

M1 - 074020

ER -