Xe<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>5</mml:mn><mml:mi>s</mml:mi></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>5</mml:mn><mml:mi>p</mml:mi></mml:math>correlation satellites in the region of strong interchannel interactions, 28—75 eV

Fahlman, Anders; Krause, Manfred O.; Carlson, Thomas A.; Svensson, Agneta

doi:10.1103/physreva.30.812

Cited by 77 publications

(48 citation statements)

References 23 publications

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“…To describe the PR process of Xe, we need to use the PR transition dipole moment including multielectron effects in QRS theory. Such PR moment can be extracted from the experimental photoionization cross section (PICS) [40,41]. In the calculation, we incorporate the PICS of Xe, which is extended into high-photon energy region (a few hundred eV), using the relativistic random-phase approximation (RRPA) by Kutzner et al [42].…”

mentioning

confidence: 99%

Generation of broad XUV continuous high harmonic spectra and isolated attosecond pulses with intense mid-infrared lasers

Trallero–Herrero

Jin

Schmidt

et al. 2011

J. Phys. B: At. Mol. Opt. Phys.

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We present experimental results showing the appearance of a near-continuum in the high-order harmonic generation (HHG) spectra of atomic and molecular species as the driving laser intensity of an infrared pulse increases. Detailed macroscopic simulations reveal that these near-continuum spectra are capable of producing IAPs in the far field if a proper spatial filter is applied. Further, our simulations show that the near-continuum spectra and the IAPs are a product of strong temporal and spatial reshaping (blue shift and defocusing) of the driving field. This offers a possibility of producing IAPs with a broad range of photon energy, including plateau harmonics, by mid-IR laser pulses even without carrier-envelope phase stabilization.It has been a decade since the first reported generation of isolated attosecond pulses (IAPs) [1] and the first full characterization of an attosecond pulse train (APT) [2], both seminal results that gave birth to the field of attosecond science [3][4][5][6][7]. While APTs can be now routinely generated based on high-order harmonic generation (HHG) in gases, production of IAPs is still a very active field of research. Common to all methods of generating IAPs is the concept of temporal gating, which is used to select a XUV burst from an APT. Current methods can be divided into three different categories. The most intuitive, but technically demanding, approach is based on XUV spectral filtering near the cutoff of the HHG spectra. This approach requires a short driving pulse (about two optical cycle) with a stabilized carrierenvelope phase. [6,8]. This approach could be called intensity gating, as it selects the harmonics emitted near the peak of the most intense half-cycle of the (short) laser pulse. The second approach is based on polarization gating [9][10][11], and the generalized double optical gating [12][13][14], in which the short driving pulse requirement is somewhat relaxed. While these two approaches have their origin already in the single-atom response, the third approach is based on the macroscopic propagation effects [15], which includes, ionization gating [16][17][18], phase matching [19], and ionization-driven reshaping Gaarde et al [15,20]. It has also been demonstrated recently that near-continuum spectra can be generated with two-color multicycle driving laser pulses by carefully adjusting the wavelength of the supplementary pulse [21].In order to produce a short IAP, XUV radiation with a broad frequency bandwidth needs to be generated. Since the HHG cutoff law is Ω cutof f ∼ I L λ 2 L , there are only two ways to extend Ω cutof f : increasing the laser intensity I L , or increasing the laser wavelength λ L . The first option is limited by ionization, which dramatically reduces HHG yield due to the depletion of neutral atoms and, more importantly, the phase mismatching due to free electrons in the medium. Using a short laser pulse does not help much, since the current technology nearly reaches the one-cycle limit already. The second option is to use lasers with a lo...

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confidence: 99%

Generation of broad XUV continuous high harmonic spectra and isolated attosecond pulses with intense mid-infrared lasers

Trallero–Herrero

Jin

Schmidt

et al. 2011

J. Phys. B: At. Mol. Opt. Phys.

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“…The quantum efficiency of the AXUV-100 photodiode was also factored in. The Xe cross-section data were obtained from Samson and Stolte [37] and Fahlman et al [38]. The transmission calibration procedure has been discussed in more detail by Niskanen et al [39].…”

Section: Methodsmentioning

confidence: 99%

Valence electronic structure and photofragmentation of 1,1,1,2-tetrafluoroethane (CF3-CH2F)

et al. 2012

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The electronic structure and fragmentation of the hydrofluorocarbon compound 1,1,1,2-tetrafluoroethane (CF 3 -CH 2 F) were studied using spectroscopical methods and quantum chemical calculations. Valence photoelectron spectra and the ionic fragmentation products were recorded with synchrotron radiation in the vacuum ultraviolet (VUV) region. The geometric and electronic structures of the CF 3 -CH 2 F molecule were calculated using the complete active space perturbation theory of second order. The calculated vertical ionization energies were used to interpret the experimental photoelectron spectrum. VUV photodissociation of the sample molecule was studied with photoelectron-photoion coincidence spectroscopy. Coincident ion yields are shown for several cations as a function of electron binding energy. The experimental data are discussed in comparison with theory and previous work.

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“…The spectra are considerably better resolved than earlier published work using PES at similar photon energies (1 6, 17) or XPS (5,6) with the peaks a, b, c, d, e, f, g, h, and i not having been resolved previously. Fahlman et al (59,60) have also reported Xe 5 s PES spectra at quite good energy resolution, and also obtained angular distribution information over the photon-energy range 28.5-74. intensities. Figure 6 shows a theoretical spectrum obtained using the intensities as calculated by Hansen and Persson using CI methods (27,45) and convoluted with the experimental energy resolution (0.34 eV).…”

Section: Introductionmentioning

confidence: 99%

“…The energies of the spectral features in Fig. 8 are given in Table 4 together with low-photon-energy, high-resolution PES data (59)(60)(61). From a comparison of the presently obtained higher-resolution Xe spectra (Fig.…”

Section: Xe 5 S Spectrummentioning

confidence: 99%

Investigation of electron correlation effects in the inner-valence photoelectron spectra of argon and xenon using synchrotron radiation at high resolution

Brion¹,

Bawagan²,

Tan³

1988

Can. J. Chem.

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High-resolution, magic angle photoelectron spectra have been obtained for the Ar 3 s and Xe 5s inner-valence regions using photon energies in the range 60-170 eV. Measurements were made using monochromatized synchrotron radiation from the Canadian Synchrotron Radiation Facility at the new 1-GeV storage ring at the University of Wisconsin. The binding energy spectra show detailed and complex structures due to electron correlation (many-body) effects. Relative satellite intensities are compared with the results of recent configuration-interaction calculations. Additional binding energy spectra obtained at much higher resolution (0.16 eV fwhm) than any previous published work show extremely detailed satellite structure consistent with information from recent high resolution fluorescence studies for argon. The newly revealed satellite structure provides further insight into existing differences between calculated and measured satellite intensities. In the case of the Ar 3s spectrum, very close agreement is predicted between the measured intensities and those calculated by CI methods when the previously unresolved satellite structure is taken into account. These new spectral observations also provide information and perspective relevant to recent controversies in the literature concerning intensities and mechanisms in photoelectron and electron momentum spectroscopies. obtenus i une rCsolution beaucoup plus grande (0,16 eV fwhm) que celles utilisees anterieurement, presentent une structure satellite extrgmement detaillee qui est en accord avec l'information obtenue a partir d'etudes recentes de fluorescence a haute resolution effectukes sur l'argon. La nouvelle structure satellite observee fournit une connaissance plus profonde sur les differences qui existent entre les intensites satellites calcultes et mesurkes. Dans le cas du spectre du Ar 3s, alors qu'on prend en consideration la structure satellite qui n'avait pas etk rksolue anterieurement, on observe une excellente correlation entre les intensites mesurees et celles calcul&es par les mkthodes des IC. Ces nouvelles observations spectrales fournissent aussi de l'information et une perspective qui presentent de l'intCr2t en relation avec les rkcentes controverses qui ont surgies dans la litterature concernant les intensites et les mecanismes des spectroscopies phototlectronique et du moment Clectronique.[Traduit par la revue] Introduction Photoelectron spectroscopy (PES) using vacuum ultraviolet radiation has provided detailed insight into valence-shell photoionization processes and the electronic structure of free atoms and molecules. Early He1 PES studies of the outer-valence np photoionization of the noble gases by Al-Joboury and Turner (1, 2), and also the elegant photoelectron studies of Ar, K r , and Xe by Frost, McDowell, and Vroom (3), using a spherical grid retarding spectrometer were seminal in the rise and development of ultraviolet PES. Today PES is a precise tool not only for the study of fundamental processes in photoionization, but also for the inv...

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Xe5s,5pcorrelation satellites in the region of strong interchannel interactions, 28—75 eV

Cited by 77 publications

References 23 publications

Generation of broad XUV continuous high harmonic spectra and isolated attosecond pulses with intense mid-infrared lasers

Generation of broad XUV continuous high harmonic spectra and isolated attosecond pulses with intense mid-infrared lasers

Valence electronic structure and photofragmentation of 1,1,1,2-tetrafluoroethane (CF3-CH2F)

Investigation of electron correlation effects in the inner-valence photoelectron spectra of argon and xenon using synchrotron radiation at high resolution

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