High-order harmonic generation with an annular laser beam

Peatross, Justin; Chaloupka, J. L.; Meyerhofer, D. D.

doi:10.1364/ol.19.000942

Cited by 81 publications

(42 citation statements)

References 8 publications

(1 reference statement)

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“…Due to the loose focusing there was a danger that in this imaging spectrometer in which the valve-grating distance was only ∼32 cm the grating might be damaged. Therefore the arrangement of Peatross et al [14] was used, which is a combination of a beam block at the centre of the incident beam and an aperture before the grating which suppresses the fundamental beam. The detector was a microchannel plate (MCP) with a phosphor screen.…”

Section: Methodsmentioning

confidence: 99%

High harmonic generation and ionization effects in cluster targets

Aladi

Márton

Rácz

et al. 2014

High Pow Laser Sci Eng

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High harmonic generation in gas jets was investigated in different gases up to more than 14 bar backing pressure. The observation of increase of harmonic intensity with increasing pressure and laser intensity shows evidence of the presence of clusters in Xe with an increased efficiency compared with He, whereas Ar is an intermediate case for which clusters will start to dominate above a certain backing pressure. Spectral investigations give evidence for tunable harmonic generation in a broad spectral range. A spectral shift of opposite signature caused by the free electrons in the focal volume and the nanoplasmas inside the cluster was observed.

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Section: Methodsmentioning

confidence: 99%

High harmonic generation and ionization effects in cluster targets

Aladi

Márton

Rácz

et al. 2014

High Pow Laser Sci Eng

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“…Noncollinear techniques were also used previously mainly to separate high-harmonic radiation from the fundamental beam [20][21][22]. An important recent application is in extreme ultraviolet frequency comb metrology where a noncollinear control pulse switches high-harmonic radiation from a buildup cavity [23].…”

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confidence: 99%

Ultrahigh-Order Wave Mixing in Noncollinear High Harmonic Generation

et al. 2011

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Access and use of this website and the material on it are subject to the Terms and Conditions set forth at NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=16925471&lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=16925471&lang=fr READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE.http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://doi.org/10.1103/PhysRevLett.106.023001Physical Review Letters, 106, 2, pp. 023001-1-023001-4, 2011-01-01 We show that noncollinear high harmonic generation (HHG) can be fully understood in terms of nonlinear optical wave mixing. We demonstrate this by superposing on the fundamental ! 1 field its second harmonic ! 2 of variable intensity in a noncollinear geometry. It allows us to identify, by momentum conservation, each field's contribution (n 1 ;n 2 ) to the extreme ultraviolet emission at frequency ¼ n 1 ! 1 þ n 2 ! 2 . We observe that the photon ( ) yield follows an n 2 power law on the ! 2 intensity, before saturation. It demonstrates that, although HHG is a highly nonperturbative process, a perturbation theory can still be developed around it.

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“…A mask placed 4 meters upstream of the lens obscured the central portion of the infrared pulse, and this mask was imaged to an iris 4 meters after the lens to remove most of the infrared light. The near Gaussian, diffraction limited HHG light is more collimated and passes through the iris [14]. A 200 nm thick Al filter (Luxel Corp.) blocked any residual infrared light from reaching the XUV interaction chamber.…”

Section: Methodsmentioning

confidence: 99%

High Intensity Femtosecond XUV Pulse Interactions with Atomic Clusters

Hoffmann

Murphy

Keto³

et al. 2009

AIP Conference Proceedings

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Articles you may be interested inHigh-order harmonic generation during propagation of femtosecond pulses through the laserproduced plasmas of semiconductors J. Appl. Phys. 117, 023114 (2015) Abstract. The interactions of large xenon clusters irradiated by intense, femtosecond extremeultraviolet pulses at a wavelength of 38 nm have been studied. Using high harmonic generation from a 35 fs near-infrared terawatt laser, clusters have been irradiated by XUV pulses of 10 11 W/cm 2 intensity. Charge states up to Xe 8+ are observed, states well above that produced by single atom illumination, indicating that plasma continuum lowering is important. Furthermore the kinetic energy distribution of the exploding ions is consistent with a quasineutral hydrodynamic expansion, rather than a Coulomb explosion.

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High-order harmonic generation with an annular laser beam

Cited by 81 publications

References 8 publications

High harmonic generation and ionization effects in cluster targets

High harmonic generation and ionization effects in cluster targets

Ultrahigh-Order Wave Mixing in Noncollinear High Harmonic Generation

High Intensity Femtosecond XUV Pulse Interactions with Atomic Clusters

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