Toward a terawatt-scale sub-10-fs laser technology

Nisoli, M.; Stagira, S.; Silvestri, S. De; Svelto, O.; Sartania, S.; Zhao, Chao; Tempea, G.; Spielmann, Christian; Krausz, Ferenc

doi:10.1109/2944.686749

Cited by 67 publications

(28 citation statements)

References 26 publications

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“…The third term corresponds to the dispersion of the neutral and ionized gas atoms. Here the nonlinear refractive index of the gas is neglected, as it is small compared to the other contributions [28]. The ionization fraction in the capillary is calculated from the electric field profile using Keldysh ionization theory [23] and taking account of above barrier ionization [29,30].…”

Section: Theoretical Methodsmentioning

confidence: 99%

Spatiotemporal phase-matching in capillary high-harmonic generation

et al. 2012

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We present a simple phase-matching model that takes into account the full spatiotemporal nature of capillary high-harmonic generation. Spectra predicted from the model are compared to experimental results for a number of gases and are shown to reproduce the spectral envelope of experimentally generated harmonics. The model demonstrates that an ionization-induced phase mismatch is limiting the energy of the generated harmonics in current capillary high-harmonic generation experiments. The success of this model shows that phase-matching processes play a dominant role in determining the emission from capillary high-harmonic generation.

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Section: Theoretical Methodsmentioning

confidence: 99%

Spatiotemporal phase-matching in capillary high-harmonic generation

et al. 2012

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“…A well-established approach for large spectral bandwidth generation with pulse energy in the lJ to mJ range is self-phase modulation (SPM) in a noble-gas filled HCF. [18][19][20] It has been shown that this nonlinear phenomenon can produce a spectrum wide enough to support pulse durations below 4 fs. 16 The described probe-beam in the JETI laser system is shown in Fig.…”

Section: à3mentioning

confidence: 99%

Few-cycle optical probe-pulse for investigation of relativistic laser-plasma interactions

Schwab¹,

Sävert²,

Jäckel

et al. 2013

Appl. Phys. Lett.

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“…State of the art pulse durations at centre wavelengths in the visible to NIR currently lie in the few-cycle range at repetition rates up to several kHz. Sources are nearly exclusively based on Ti:Sapphire chirped pulse amplification (CPA) systems, combined with spectral broadening via gas-filled hollow fibres (Nisoli et al (1998)) or filamentation (Hauri et al (2004)) and compression in the visible to near-IR (NIR) with chirped mirrors (Schenkel et al (2003)) to routinely generate pulses with durations of a few cycles of the electric field. These systems are intrinsically limited to the NIR by their reliance on Ti:Sapphire CPA, and as such cannot be directly reproduced in the mid-IR.…”

Section: Few-cycle Mid-ir Pulse Generationmentioning

confidence: 99%