Near infrared few-cycle pulses for high harmonic generation

  title={Near infrared few-cycle pulses for high harmonic generation},
  author={Steffen Driever and Konstantin B Holzner and Jean Christophe Delagnes and Nikita Fedorov and Martin Arnold and Damien Bigourd and F. Burgy and Dominique Descamps and {\'E}ric Cormier and Roland Guichard and Eric Constant and Amelle Za{\"i}r},
  journal={Journal of Physics B: Atomic, Molecular and Optical Physics},
We report on the development of intense tunable few-cycle pulses with central wavelengths ranging from 1.6 &mgr; m ?> to 2 &mgr; m ?> . These pulses were used as a proof of principle for high harmonic generation in atomic and molecular targets. In order to generate such pulses, we produced a filament in a four-bar krypton cell. Spectral broadening by a factor of two to three of a 40 fs near-infrared input pulse was achieved. The spectrally broadened output pulses were then compressed by fused… 
3 Citations

Ionisation du xénon à l'échelle du cycle optique et développement et caractérisation d'une source d'impulsions EUV appliquée à la technologie attoseconde

This thesis is the result of several years of experimental work mainly in the fields of atomic physics and intense laser fields. The first chapters present the relevant physical principles for this

Resolving XUV induced femtosecond and attosecond dynamics in polyatomic molecules with a compact attosecond beamline

XUV induced dynamics in molecules is still largely unexplored while experimental and theoretical tools are becoming available in several labs. In this work, we present a compact XUV beamline designed

Low chromatic Fresnel lens for broadband attosecond XUV pulse applications.

The design and theoretical simulations based on the design of an achromatic hybrid optics combining both, a refractive and diffractive lens in one optical element are reported on, showing that the chromatic dispersion along the optical axis can be greatly reduced compared to a standard Fresnel zone plate.



Tunable 1.6–2 μm near infrared few-cycle pulse generation by filamentation

We present results on tunable few-cycle laser pulses generated in the near infrared region obtained by filamentation in a krypton cell combined with group velocity dispersion compensation in fused

High-harmonic generation by resonant plasmon field enhancement

This work demonstrates a method of high-harmonic generation that requires no extra cavities by exploiting the local field enhancement induced by resonant plasmons within a metallic nanostructure consisting of bow-tie-shaped gold elements on a sapphire substrate.

Intense self-compressed, self-phase-stabilized few-cycle pulses at 2 microm from an optical filament.

This work reports the compression of intense, carrier-envelope phase stable mid-IR pulses down to few-cycle duration using an optical filament, to be the first experimental realization of pulse compression in optical filaments at mid-ir wavelengths (lambda>0.8 microm).

Generation of bright isolated attosecond soft X-ray pulses driven by multicycle midinfrared lasers

Advanced theory shows that in contrast with as pulse generation in the extreme UV, long-duration, 10-cycle, driving laser pulses are required to generate isolated soft X-ray bursts efficiently, to mitigate group velocity walk-off between the laser and theX-ray fields that otherwise limit the conversion efficiency.

Self-compression of millijoule 1.5 μm pulses

We demonstrate a four-stage optical parametric chirped-pulse amplification system that delivers carrier-envelope phase-stable approximately 1.5 microm pulses with energies up to 12.5 mJ before

Spatio-temporal characterization of few-cycle pulses obtained by filamentation.

Intense sub-5-fs pulses were generated by filamentation in a noble gas and subsequent chirped-mirror pulse compression. The transversal spatial dependence of the temporal pulse profile was

XPW based self-referenced spectral interferometry for few-cycle pulse characterization in the short wavelength IR

Summary form only given. Femtosecond pulses in the short-wavelength infrared spectral range (1-2.5 μm) are nowadays available from commercial optical parametric amplifiers (OPA). Further spectral

Bright Coherent Ultrahigh Harmonics in the keV X-ray Regime from Mid-Infrared Femtosecond Lasers

By guiding a mid-infrared femtosecond laser in a high-pressure gas, ultrahigh harmonics can be generated that emerge as a bright supercontinuum that spans the entire electromagnetic spectrum from the ultraviolet to more than 1.6 kilo–electron volts, allowing, in principle, the generation of pulses as short as 2.5 attoseconds.

Self-compression of 2 μm laser filaments

We numerically study the filamentation of ultrashort laser pulses at 2 µm carrier wavelength in noble gases (argon, xenon) and in air. Compared with filamentation in the near-visible domain (800 nm),

Ultrashort filaments of light in weakly ionized, optically transparent media

Modern laser sources nowadays deliver ultrashort light pulses reaching few cycles in duration and peak powers exceeding several terawatt (TW). When such pulses propagate through optically transparent