Polarization of the 61st harmonic from 1053-nm laser radiation in neon

Schulze, Dominik; Dörr, Martin; Sommerer, G.; Ludwig, Joshua; Nickles, P. V.; Schlegel, T.; Sandner, W.; Drescher, Markus; Kleineberg, Ulf; Heinzmann, Ulrich

doi:10.1103/physreva.57.3003

Cited by 28 publications

(11 citation statements)

References 21 publications

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“…These measurements indicated that the intensity of the adjacent, the 17th and 21st, harmonics was less than 4% of the 19th, in agreement with the expected performance of the SiC/Mg mirrors. The linear polarization of the 19th harmonic is rotated using a half-wave plate for the driving laser (800 nm) 31,32 . Variation of the EUV photon flux was less than 4% when rotating polarization.…”

Section: Methodsmentioning

confidence: 99%

Angle-resolved photoemission spectroscopy of liquid water at 29.5 eV

Nishitani

West

Suzuki

2017

Structural Dynamics

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Angle-resolved photoemission spectroscopy of liquid water was performed using extreme ultraviolet radiation at 29.5 eV and a time-of-flight photoelectron spectrometer. SiC/Mg coated mirrors were employed to select the single-order 19th harmonic from laser high harmonics, which provided a constant photon flux for different laser polarizations. The instrument was tested by measuring photoemission anisotropy for rare gases and water molecules and applied to a microjet of an aqueous NaI solution. The solute concentration was adjusted to eliminate an electric field gradient around the microjet. The observed photoelectron spectra were analyzed considering contributions from liquid water, water vapor, and an isotropic background. The anisotropy parameters of the valence bands (1b1, 3a1, and 1b2) of liquid water are considerably smaller than those of gaseous water, which is primarily attributed to electron scattering in liquid water.

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Section: Methodsmentioning

confidence: 99%

Angle-resolved photoemission spectroscopy of liquid water at 29.5 eV

Nishitani

West

Suzuki

2017

Structural Dynamics

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“…The Ti:Sa-laser radiation of our setup is horizontally polarized but its polarization direction can easily be tuned continuously with a λ/2 waveplate inserted in the beam path in front of the high harmonics generation chamber. As the polarization of the high harmonics equals the polarization of the fundamental laser radiation [47,48]-with an even reduced ellipticity [49]-the polarization of the extreme ultraviolet radiation can easily be tuned by rotating the polarization of the fundamental laser radiation. For the TOF spectrometer being fixed in the horizontal plane of the experiment a horizontal polarization of the XUV radiation represents 0°whereas a vertical polarization equals a deviation angle of 90°between the electrical light field and the detector axis.…”

Section: Polarization-dependent Measurementsmentioning

confidence: 99%

Ultrafast electronic spectroscopy for chemical analysis near liquid water interfaces: concepts and applications

et al. 2009

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Electron spectroscopy for chemical analysis (ESCA) being conceptually a photoelectron spectroscopy is established as a chemically specific probe mostly for surface analysis. Liquid phase ESCA for volatile liquids has become possible through the development of the liquid microjet technique in vacuum enabling the measurement of liquid interface photoelectron emission at the high vapor pressure of volatile liquids. Recently we have been able to add the dimension of time to the liquid interface ESCA technique employing high-harmonics soft X-ray and UV/near IR femtosecond pulses in combination with liquid water micro beams in vacuum. The concepts as well as technical details are outlined and several characteristic applications are high-

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“…It is predicted that µ = q − 1 within the perturbative regime, as verified [29] [30]. Schulze et al found that for higher-order harmonics the sensitivity of harmonic generation to the ellipticity of the driving radiation is lower than predicted by Eqn (16) with µ = q − 1 [31], although in this nonperturbative regime the efficiency of harmonic generation still decreases with ε. Further measurements of the dependence of harmonic generation on ε have been provided by Sola et al [32].…”

Section: B Derivation Of the Growth Equationmentioning

confidence: 76%

Quasi-phase-matching of high-order-harmonic generation using multimode polarization beating

2013

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The generalization of polarization beating quasi-phase matching (PBQPM) and of multi-mode quasi-phase matching (MMQPM) for the generation of high-order harmonics is explored, and a novel method for achieving polarization beating is proposed. If two (and in principle more) modes of a waveguide are excited, modulation of the intensity, phase, and/or polarization of the guided radiation will be achieved; by appropriately matching the period of this modulation to the coherence length, quasi-phase-matching of high harmonic radiation generated by the guided wave can occur. We show that it is possible to achieve efficiencies with multi-mode quasi-phase matching greater than the ideal square wave modulation. We present a Fourier treatment of QPM and use this to show that phase modulation, rather than amplitude modulation, plays the dominant role in the case of MMQPM. The experimental parameters and optimal conditions for this scheme are explored.Please note that this is an arXiv version of the original APS paper. Please cite original paper L. Z. Liu, K O'Keeffe, and S. M. Hooker, Phys. Rev. A 87, 023810 (2013). APS link here: http://pra.aps.org/abstract/PRA/v87/i2/e023810

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Polarization of the 61st harmonic from 1053-nm laser radiation in neon

Cited by 28 publications

References 21 publications

Angle-resolved photoemission spectroscopy of liquid water at 29.5 eV

Angle-resolved photoemission spectroscopy of liquid water at 29.5 eV

Ultrafast electronic spectroscopy for chemical analysis near liquid water interfaces: concepts and applications

Quasi-phase-matching of high-order-harmonic generation using multimode polarization beating

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