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  • (PDF) High-harmonic transient grating spectroscopy of

    Principle of high harmonic transient grating spectroscopy. In the case of one-photon excitation (a), the sinusoidal modulation of the pump intensity in the near field produces a sinusoidal ...

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  • (PDF) Phase sensitivity of high harmonic transient grating ...

    We study the spatial profile of high order harmonics generated by a transient grating of rotational excitation. We show that the phase modulation of the harmonic emission as a function of ...

    Get Price
  • High-order harmonic transient grating spectroscopy of

    vibrations, associated to the high sensitivity of transient grating spectroscopy, make their combination a unique tool to probe vibrational dynamics. Keywords: high-order harmonic generation, sulfur hexafluoride, strong fields, vibrational wave packets, transient grating spectroscopy (Some figures may appear in colour only in the online ...

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  • Phase sensitivity of high harmonic transient grating ...

    2019-5-16u2002·u2002High-order harmonic transient grating spectroscopy of SF6 molecular vibrations Amélie Ferré, David Staedter, Frédéric Burgy et al.-Interplay between absorption, dispersion and refraction in high-order harmonic generation H Dachraoui, T Auguste, A Helmstedt et al.-Recent citations Dynamical distortions of structural signatures in molecular ...

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  • High-order harmonic transient grating spectroscopy of

    2017-1-30u2002·u2002High-order harmonic transient grating spectroscopyof SF6 molecular vibrations Am´elie Ferr´e1, David Staedter2, Fr´ed´eric Burgy1, Michal Dagan3, Dominique Descamps1, Nirit Dudovich3, St´ephane Petit1, Hadas Soifer3, Val´erie Blanchet1, and Yann Mairesse1 1Universit´e de Bordeaux - CNRS - CEA, CELIA, UMR5107, F33405 Talence, France 2Universit´e de Toulouse - CNRS, LCAR …

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  • High-harmonic transient grating spectroscopy of NO2 ...

    2015-11-20u2002·u2002citation grating directly reflects the vibrational dynamics of the first excited diabatic state around the conical intersection. The remainder of the paper is organized as follows. Calcula-tions of the molecular dynamics are presented in Sec. II.The experimental results of high harmonic transient grating …

    Get Price
  • Transient gratings with X-rays

    2021-6-9u2002·u2002Short period, femtosecond transient gratings in a sample can now be produced by X-rays. The approach promises to reveal the excitation behaviour of complex materials with …

    Get Price
  • Self Referencing Heterodyne Transient Grating

    2015-4-15u2002·u2002Self Referencing Heterodyne Transient Grating Spectroscopy ... [1–4] and an increased availability of high harmonic sources [5,6]. The high local sensitivity of x-rays and EUV light has helped to probe ultrafast ... [25]. Photonics 2015, 2 396 3. Results and Discussion Figure 2a shows the raw image of diffracted light from the permanent ...

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  • TRANSIENT GRATINGS, FOUR-WAVE MIXING AND

    2011-12-13u2002·u20023.3. The two-particle description: degenerate four-wave 5. Concluding remarks 44 mixing 16 Appendix A. Elimination of phonon degrees of freedom 47 3.4. Time-domain four-wavemixing: transient grating and Appendix B. The two-particle Green function 51 exciton dynamics 22 Appendix C. The diffusive limit of the D4WM intensity 52 3.5.

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  • High-contrast pump-probe spectroscopy with high-order ...

    The experimental setup that was used to perform high harmonic TGS is shown in Fig. 1 [12]. The geometry is similar to conventional transient grating spectroscopy [14]. Two non-colinear pump pulses create a grating of rotational excitation in a pulsed molecular nitrogen gas jet. The fringe spacing is 13 m.

    Get Price
  • [1211.0917] High-harmonic transient grating spectroscopy ...

    2012-11-6u2002·u2002An experiment based on high-order harmonic transient grating spectroscopy reveals dynamics occuring on the same timescale. A systematic study of the detected transient is conducted to investigate the possible influence of the pump intensity, pump …

    Get Price
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    High Harmonic Transient Grating 25*5 Steel Grating for Ditch. $10.00-$20.00 Metro cuadrado. 100 Metros cuadrados ... China Wholesale High Quality Steel Grating For Walkway Platform And Metal Building Material. $12.90-$14.30 Unidad. ... 25*4 steel driveway grates welded steel grating …

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  • OSA

    We create a transient Bragg grating in a high-harmonic generation medium using two counterpropagating pulses. The Bragg grating disperses the harmonics in angle and can diffract a large bandwidth with temporal resolution limited only by the source size.

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  • High-harmonic transient grating spectroscopy of NO2 ...

    2015-11-20u2002·u2002citation grating directly reflects the vibrational dynamics of the first excited diabatic state around the conical intersection. The remainder of the paper is organized as follows. Calcula-tions of the molecular dynamics are presented in Sec. II.The experimental results of high harmonic transient grating …

    Get Price
  • Spacial harmonic analysis of transient optical grating ...

    A novel modification of the forced Rayleigh scattering method for determining the translational diffusion coefficient and lifetime of photochromic moieties is effected through imposition of a non-sinusoidal transient optical grating (TOG) to a condensed medium sample.

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  • Wuxi Youhui Steel Grating Co., Ltd. - Platform steel ...

    Quality Platform steel grating Ditch cover grating Stair tread for sale, Platform steel grating Ditch cover grating Stair tread provided by China Suppliers - Wuxi Youhui Steel Grating Co., Ltd..

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  • Macroscopic Manipulation of High-Order-Harmonic

    2014-12-19u2002·u2002used for HHG transient grating spectroscopy, allowing us to extract the amplitude and phase dynamics of excited rotational or vibrational molecular states at low excitation levels [29–32]. Finally, it was suggested to use a transient molecular alignment grating as a spatial QPM for the process of third harmonic generation [33].

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  • University of Groningen Transient Grating Spectroscopy

    2018-2-11u2002·u2002insulator-to-metal transitions 23, as well as a range of measurements of elastic dynamics at surfaces of thin films and bulk materials 24–31. TG spectroscopy continues to be developed in novel ways, including implementations of X-rays for detection of dynamics 23,25, as well as recent demonstrations of X-ray generation of transient gratings 32.

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  • Review of pulse compression gratings for chirped pulse ...

    2021-2-10u2002·u2002Up to now, there are three main kinds of PCGs fully developed. 35, 36 Metal grating, usually Au-coated grating (ACG), is the original kind of PCGs used in CPA system. ACG shows high DE in a broad bandwidth. However, due to the high absorption of metal…

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  • Ultrafast laser-induced index grating in transparent ...

    Using the second harmonic of a Ti-sapphire laser at 405nm, it is shown that the generation of the transient Kerr grating is a general feature, requiring less than 20μJ/pulse.

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  • (PDF) Phase sensitivity of high harmonic transient grating ...

    We study the spatial profile of high order harmonics generated by a transient grating of rotational excitation. We show that the phase modulation of the harmonic emission as a function of ...

    Get Price
  • (PDF) High-harmonic transient grating spectroscopy of

    Principle of high harmonic transient grating spectroscopy. In the case of one-photon excitation (a), the sinusoidal modulation of the pump intensity in the near field produces a sinusoidal ...

    Get Price
  • Phase sensitivity of high harmonic transient grating ...

    2019-5-16u2002·u2002High-order harmonic transient grating spectroscopy of SF6 molecular vibrations Amélie Ferré, David Staedter, Frédéric Burgy et al.-Interplay between absorption, dispersion and refraction in high-order harmonic generation H Dachraoui, T Auguste, A Helmstedt et al.-Recent citations Dynamical distortions of structural signatures in molecular ...

    Get Price
  • High-order harmonic transient grating spectroscopy of

    vibrations, associated to the high sensitivity of transient grating spectroscopy, make their combination a unique tool to probe vibrational dynamics. Keywords: high-order harmonic generation, sulfur hexafluoride, strong fields, vibrational wave packets, transient grating spectroscopy (Some figures may appear in colour only in the online ...

    Get Price
  • High-order harmonic transient grating spectroscopy of

    2017-1-30u2002·u2002High-order harmonic transient grating spectroscopyof SF6 molecular vibrations Am´elie Ferr´e1, David Staedter2, Fr´ed´eric Burgy1, Michal Dagan3, Dominique Descamps1, Nirit Dudovich3, St´ephane Petit1, Hadas Soifer3, Val´erie Blanchet1, and Yann Mairesse1 1Universit´e de Bordeaux - CNRS - CEA, CELIA, UMR5107, F33405 Talence, France 2Universit´e de Toulouse - CNRS, LCAR …

    Get Price
  • High-harmonic transient grating spectroscopy of NO2 ...

    2015-11-20u2002·u2002citation grating directly reflects the vibrational dynamics of the first excited diabatic state around the conical intersection. The remainder of the paper is organized as follows. Calcula-tions of the molecular dynamics are presented in Sec. II.The experimental results of high harmonic transient grating …

    Get Price
  • Self Referencing Heterodyne Transient Grating

    2015-4-15u2002·u2002Self Referencing Heterodyne Transient Grating Spectroscopy ... [1–4] and an increased availability of high harmonic sources [5,6]. The high local sensitivity of x-rays and EUV light has helped to probe ultrafast ... [25]. Photonics 2015, 2 396 3. Results and Discussion Figure 2a shows the raw image of diffracted light from the permanent ...

    Get Price
  • TRANSIENT GRATINGS, FOUR-WAVE MIXING AND

    2011-12-13u2002·u20023.3. The two-particle description: degenerate four-wave 5. Concluding remarks 44 mixing 16 Appendix A. Elimination of phonon degrees of freedom 47 3.4. Time-domain four-wavemixing: transient grating and Appendix B. The two-particle Green function 51 exciton dynamics 22 Appendix C. The diffusive limit of the D4WM intensity 52 3.5.

    Get Price
  • Transient gratings with X-rays

    2021-6-9u2002·u2002Short period, femtosecond transient gratings in a sample can now be produced by X-rays. The approach promises to reveal the excitation behaviour of complex materials with high …

    Get Price
  • High-contrast pump-probe spectroscopy with high-order ...

    The experimental setup that was used to perform high harmonic TGS is shown in Fig. 1 [12]. The geometry is similar to conventional transient grating spectroscopy [14]. Two non-colinear pump pulses create a grating of rotational excitation in a pulsed molecular nitrogen gas jet. The fringe spacing is 13 m.

    Get Price
  • High-harmonic transient grating spectroscopy of NO2 ...

    2012-12-11u2002·u2002An experiment based on high-order harmonic transient grating spectroscopy reveals dynamics occurring on the same time scale. A systematic study of the detected transient is conducted to investigate the possible influence of the …

    Get Price
  • rejilla de acero para offshore robusta y potente: Alibaba.com

    High Harmonic Transient Grating 25*5 Steel Grating for Ditch. $10.00-$20.00 Metro cuadrado. 100 Metros cuadrados ... China Wholesale High Quality Steel Grating For Walkway Platform And Metal Building Material. $12.90-$14.30 Unidad. ... 25*4 steel driveway grates welded steel grating for offshore for Vietnam.

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  • High-order harmonic transient grating spectroscopy of SF6 ...

    2017-1-30u2002·u2002High-order harmonic transient grating spectroscopyof SF6 molecular vibrations Am´elie Ferr´e1, David Staedter2, Fr´ed´eric Burgy1, Michal Dagan3, Dominique Descamps1, Nirit Dudovich3, St´ephane Petit1, Hadas Soifer3, Val´erie Blanchet1, and Yann Mairesse1 1Universit´e de Bordeaux - CNRS - CEA, CELIA, UMR5107, F33405 Talence, France 2Universit´e de Toulouse …

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  • Surface selectivity in four-wave mixing: transient ...

    2008-8-18u2002·u2002transient grating case, in which both grating excitation beams are incident upon the same side of the sample. For samples in which the grating amplitude perpendicular to the sample surface varies slowly relative to the optical wavelength, the reflection geometry is shown to probe only the surface or the interface, while the trans-

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  • Optical Techniques - Orenstein Research Group

    The transient grating technique described above can be readily extended to perform measurements of spin diffusion, rather than quasiparticle diffusion. At first glance it might seem that diffusion of quasiparticles and spins would proceed at the same rate, in as much as each quasiparticle carries along its spin ½.

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  • Review of pulse compression gratings for chirped pulse ...

    2021-2-10u2002·u2002Up to now, there are three main kinds of PCGs fully developed. 35, 36 Metal grating, usually Au-coated grating (ACG), is the original kind of PCGs used in CPA system. ACG shows high DE in a broad bandwidth. However, due to the high absorption of metal, its low LIDT limits the further applications.

    Get Price
  • Transient Grating Spectroscopy in Magnetic Thin Films ...

    2016-7-5u2002·u2002Transient grating measurement of surface acoustic waves in thin metal films with extreme ultraviolet radiation. Applied Physics Letters 89, 091108 (2006). [Google Scholar] Crimmins T. F., Maznev A. A. & Nelson K. a. Transient grating measurements of picosecond acoustic pulses in metal films. Applied Physics Letters 74, 1344 (1999). [Google Scholar]

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  • Femtosecond M -Edge Spectroscopy of Transition-Metal ...

    2018-5-5u2002·u2002the metal.3 Finally, recent advances in high-harmonic generation (HHG)4 enable transient absorption spectroscopy to be reliably performed in the XUV using a tabletop laser-based source, with a photon flux that is 2 orders of magnitude higher than femtosecond 'slicing' beamlines and the time resolution from the femtosecond5,6 to attosecond7 ...

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  • Ultrafast laser-induced reproducible nano-gratings on a ...

    2017-1-9u2002·u2002Standard image High-resolution image Export PowerPoint slide ... transient electronic states characterized by a high electron density and temperature contribute to a transient dielectric function of the metal and lead to the SPP wave number,, ... under excitation by the second harmonic the grating period reduces almost by half, and is found to ...

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  • Direct measurement of the static and transient magneto ...

    2020-12-12u2002·u200278 the contributions of magnons and exchange splitting reduction at two speci c times during 79 the demagnetization process. Here, however, we access the full dynamic magnetic response 80 as the material rst demagnetizes and then begins to recover to its equilibrium state. FIG. 1. Schematic of the diagonal magneto-optical e ect (D-MOE) and the multilayer sample

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  • (PDF) Phase sensitivity of high harmonic transient grating ...

    We study the spatial profile of high order harmonics generated by a transient grating of rotational excitation. We show that the phase modulation of the harmonic emission as a function of ...

    Get Price
  • (PDF) High-harmonic transient grating spectroscopy of NO2 ...

    Principle of high harmonic transient grating spectroscopy. In the case of one-photon excitation (a), the sinusoidal modulation of the pump intensity in the near field produces a sinusoidal ...

    Get Price
  • Phase sensitivity of high harmonic transient grating ...

    2019-5-16u2002·u2002High-order harmonic transient grating spectroscopy of SF6 molecular vibrations Amélie Ferré, David Staedter, Frédéric Burgy et al.-Interplay between absorption, dispersion and refraction in high-order harmonic generation H Dachraoui, T Auguste, A Helmstedt et al.-Recent citations Dynamical distortions of structural signatures in molecular ...

    Get Price
  • High-order harmonic transient grating spectroscopy of SF 6 ...

    vibrations, associated to the high sensitivity of transient grating spectroscopy, make their combination a unique tool to probe vibrational dynamics. Keywords: high-order harmonic generation, sulfur hexafluoride, strong fields, vibrational wave packets, transient grating spectroscopy (Some figures may appear in colour only in the online ...

    Get Price
  • High-order harmonic transient grating spectroscopy of SF6 ...

    2017-1-30u2002·u2002High-order harmonic transient grating spectroscopyof SF6 molecular vibrations Am´elie Ferr´e1, David Staedter2, Fr´ed´eric Burgy1, Michal Dagan3, Dominique Descamps1, Nirit Dudovich3, St´ephane Petit1, Hadas Soifer3, Val´erie Blanchet1, and Yann Mairesse1 1Universit´e de Bordeaux - CNRS - CEA, CELIA, UMR5107, F33405 Talence, France 2Universit´e de Toulouse …

    Get Price
  • High-harmonic transient grating spectroscopy of NO2 ...

    2015-11-20u2002·u2002citation grating directly reflects the vibrational dynamics of the first excited diabatic state around the conical intersection. The remainder of the paper is organized as follows. Calcula-tions of the molecular dynamics are presented in Sec. II.The experimental results of high harmonic transient grating spec-

    Get Price
  • Self Referencing Heterodyne Transient Grating Spectroscopy ...

    2015-4-15u2002·u2002Self Referencing Heterodyne Transient Grating Spectroscopy ... [1–4] and an increased availability of high harmonic sources [5,6]. The high local sensitivity of x-rays and EUV light has helped to probe ultrafast ... [25]. Photonics 2015, 2 396 3. Results and Discussion Figure 2a shows the raw image of diffracted light from the permanent ...

    Get Price
  • TRANSIENT GRATINGS, FOUR-WAVE MIXING AND

    2011-12-13u2002·u20023.3. The two-particle description: degenerate four-wave 5. Concluding remarks 44 mixing 16 Appendix A. Elimination of phonon degrees of freedom 47 3.4. Time-domain four-wavemixing: transient grating and Appendix B. The two-particle Green function 51 exciton dynamics 22 Appendix C. The diffusive limit of the D4WM intensity 52 3.5.

    Get Price
  • Transient gratings with X-rays

    2021-6-9u2002·u2002Short period, femtosecond transient gratings in a sample can now be produced by X-rays. The approach promises to reveal the excitation behaviour of complex materials with high temporal and spatial ...

    Get Price
  • High-contrast pump-probe spectroscopy with high-order ...

    The experimental setup that was used to perform high harmonic TGS is shown in Fig. 1 [12]. The geometry is similar to conventional transient grating spectroscopy [14]. Two non-colinear pump pulses create a grating of rotational excitation in a pulsed molecular nitrogen gas jet. The fringe spacing is 13 m.

    Get Price
  • Optically Controlled Solid-Density Transient Plasma Gratings

    2014-4-11u2002·u2002A general approach for optically controlled spatial structuring of overdense plasmas generated at the surface of initially plain solid targets is presented. We demonstrate it experimentally by creating sinusoidal plasma gratings of adjustable spatial periodicity and depth, and study the interaction of these transient structures with an ultraintense laser pulse to establish their usability at ...

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  • Enhanced high harmonic generation from an optically ...

    2005-3-24u2002·u2002High-order harmonic transient grating spectroscopy in a molecular jet. Mairesse Y, Zeidler D, Dudovich N, Spanner M, Levesque J, Villeneuve DM, Corkum PB. Phys Rev Lett, 100(14):143903, 11 Apr 2008 Cited by: 11 articles PMID: 18518034

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  • Two-color Transient Grating Spectroscopy of a Two-level

    2016-4-7u2002·u2002energy can be studied with this transient grating spectros-copy. In the present paper, we will consider two-color transient grating spectroscopy (2C-TG), where the pump and the probe frequencies are different from each other.7,8 In this case, the initial wavepacket or doorway state, created by the

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  • XUV-induced transient phase gratings for probing ultra ...

    A method for probing the temporal evolution of ultra-fast carrier generation and recombination processes in wide-bandgap semiconductors, e.g. diamond, is described. Two extreme ultraviolet (pump) pulses produced by high-order harmonic generation in Argon gas (with a photon energy of 32 eV) are superimposed on a sample with a small angle between them, inducing periodic changes in the …

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  • Curing Dynamics of Photopolymers Measured by Single

    The heterodyne transient grating (HD-TG) method was first applied to the curing dynamics measurement of photopolymers. The curing dynamics for various monomers including an initiator (2.5 vol%) was monitored optically via the refractive index change after a single UV pulse irradiation.

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  • Phys. Rev. X 2, 011005 (2012) - Ultrafast Demagnetization ...

    2012-1-23u2002·u2002Experimental setup. The magnetic grating sample is excited by a 25-fs pump pulse and then probed by a time-delayed HHG probe pulse. To spectrally resolve the XUV spectra, the grating sample diffracts the probe beam that is detected by use of a CCD camera. The optical models are from Ref. 23.Reuse & Permissions

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  • Attosecond Transient Absorption of Solid-State and

    2018-10-10u2002·u2002v List of Figures 1.1 Pump-probe experimental scheme 1.2 Temporal resolution with co-linear and non-co-linear pump-probe crossing angles 1.3 Three step model of high harmonic generation 1.4 Electronic structure of solids 1.5 Timescales of ultrafast processes in semiconductors 1.6 Band structure changes as a result of a Peierls distortion 1.7 Mott insulator band structure

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  • Laser & Diffraction Grating

    2017-8-29u2002·u2002The Diffraction Grating. When a collimated beam of light passes through an aperture, or if it encounters an obstacle, it spreads out and the resulting pattern contains bright and dark regions. This effect is called diffraction, and it is characteristic of all wave phenomena. It can be understood by considering the interference between different ...

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  • High Harmonic Generation - an overview

    High harmonic generation is the nonlinear response of atoms, ions, or even of a steep density-gradient plasma to interaction with an intense electromagnetic field [38].The experimental production of high harmonics is sketched in Fig. 8.The beam of a short-pulsed laser of frequency ω L is focused across an atomic jet of rare gas. The laser-radiation harmonics of frequency qω L, generated in ...

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  • Probing the timescale of the exchange interaction in a ...

    2012-6-7u2002·u2002extreme ultraviolet pulses from high-harmonic generation as an element-specific probe of ultrafast, optically driven, demagnetiza-tion in a ferromagnetic Fe-Ni alloy (permalloy). We show that for times shorter than the characteristic timescale for exchange cou-pling, the magnetization of Fe quenches more strongly than that of Ni.

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