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Pavle Juranić

Bio: Pavle Juranić is an academic researcher from Paul Scherrer Institute. The author has contributed to research in topics: Laser & Free-electron laser. The author has an hindex of 21, co-authored 60 publications receiving 1608 citations. Previous affiliations of Pavle Juranić include University of Wisconsin-Madison & Western Michigan University.


Papers
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Journal ArticleDOI
TL;DR: The Free-electron LASer (FLASH) is a unique source for extremely bright ultra-short laser-like pulses tunable in a wide spectral range in the extreme ultraviolet and soft x-ray region as discussed by the authors.
Abstract: FLASH, the Free-electron LASer in Hamburg, is a worldwide unique source for extremely bright ultra-short laser-like pulses tunable in a wide spectral range in the extreme ultraviolet and soft x-ray region (Ackermann et?al 2007 Nat. Photonics 1 336?42). To fully exploit the features of this new generation of light sources, a user facility with efficient radiation transport to the experimental area and novel online photon diagnostics capable of characterizing the unique parameters of the FLASH radiation has been built. It serves a broad user community active in many scientific fields ranging from atomic and molecular physics to plasma and solid state physics as well as chemistry and biology. A special focus is placed on the exploitation of the ultra-short FLASH pulses using pump?probe techniques. Thus, the facility is equipped with optical and THz sources synchronized to FLASH. This paper gives a detailed overview of the FLASH user facility.

346 citations

Journal ArticleDOI
Christopher J. Milne, Thomas Schietinger, M. Aiba, Arturo Alarcon, J. Alex, Alexander Anghel, Vladimir Arsov, Carl Beard, Paul Beaud, Simona Bettoni, M. Bopp, H. Brands, Manuel Brönnimann, Ingo Brunnenkant, Marco Calvi, A. Citterio, Paolo Craievich, Marta Csatari Divall, Mark Dällenbach, Michael D’Amico, Andreas Dax, Yunpei Deng, Alexander Dietrich, Roberto Dinapoli, Edwin Divall, Sladana Dordevic, Simon Ebner, Christian Erny, Hansrudolf Fitze, Uwe Flechsig, Rolf Follath, F. Frei, Florian Gärtner, Romain Ganter, Terence Garvey, Zheqiao Geng, I. Gorgisyan, C. Gough, A. Hauff, Christoph P. Hauri, Nicole Hiller, Tadej Humar, Stephan Hunziker, Gerhard Ingold, Rasmus Ischebeck, Markus Janousch, Pavle Juranić, M. Jurcevic, Maik Kaiser, Babak Kalantari, Roger Kalt, B. Keil, Christoph Kittel, Gregor Knopp, W. Koprek, Henrik T. Lemke, Thomas Lippuner, Daniel Llorente Sancho, Florian Löhl, C. Lopez-Cuenca, Fabian Märki, F. Marcellini, G. Marinkovic, Isabelle Martiel, Ralf Menzel, Aldo Mozzanica, Karol Nass, Gian Luca Orlandi, Cigdem Ozkan Loch, Ezequiel Panepucci, Martin Paraliev, Bruce D. Patterson, Bill Pedrini, Marco Pedrozzi, Patrick Pollet, Claude Pradervand, Eduard Prat, Peter Radi, Jean-Yves Raguin, S. Redford, Jens Rehanek, Julien Réhault, Sven Reiche, Matthias Ringele, J. Rittmann, Leonid Rivkin, Albert Romann, Marie Ruat, C. Ruder, Leonardo Sala, Lionel Schebacher, T. Schilcher, Volker Schlott, Thomas J. Schmidt, Bernd Schmitt, Xintian Shi, M. Stadler, L. Stingelin, Werner Sturzenegger, Jakub Szlachetko, D. Thattil, D. Treyer, A. Trisorio, Wolfgang Tron, S. Vetter, Carlo Vicario, Didier Voulot, Meitian Wang, Thierry Zamofing, Christof Zellweger, R. Zennaro, Elke Zimoch, Rafael Abela, Luc Patthey, Hans-Heinrich Braun 
TL;DR: The SwissFEL X-ray Free Electron Laser (XFEL) facility as discussed by the authors started construction at the Paul Scherrer Institute (Villigen, Switzerland) in 2013 and will be ready to accept its first users in 2018 on the Aramis hard Xray branch.
Abstract: The SwissFEL X-ray Free Electron Laser (XFEL) facility started construction at the Paul Scherrer Institute (Villigen, Switzerland) in 2013 and will be ready to accept its first users in 2018 on the Aramis hard X-ray branch. In the following sections we will summarize the various aspects of the project, including the design of the soft and hard X-ray branches of the accelerator, the results of SwissFEL performance simulations, details of the photon beamlines and experimental stations, and our first commissioning results.

295 citations

Journal ArticleDOI
Eduard Prat1, Rafael Abela1, M. Aiba1, Arturo Alarcon1, J. Alex1, Yunieski Arbelo1, Christopher Arrell1, Vladimir Arsov1, Camila Bacellar2, Camila Bacellar1, Carl Beard1, Paul Beaud1, Simona Bettoni1, Roger Biffiger1, M. Bopp1, Hans-Heinrich Braun1, Marco Calvi1, Ariana Cassar3, Tine Celcer1, Majed Chergui2, Pavel Chevtsov1, Claudio Cirelli1, A. Citterio1, Paolo Craievich1, Marta Csatari Divall1, Andreas Dax1, Micha Dehler1, Yunpei Deng1, Alexander Dietrich1, Philipp Dijkstal4, Philipp Dijkstal1, Roberto Dinapoli1, Sladana Dordevic1, Simon Ebner1, Daniel Engeler1, Christian Erny1, Vincent Esposito1, Vincent Esposito5, Eugenio Ferrari1, Uwe Flechsig1, Rolf Follath1, F. Frei1, Romain Ganter1, Terence Garvey1, Zheqiao Geng1, Alexandre Gobbo1, C. Gough1, A. Hauff1, Christoph P. Hauri1, Nicole Hiller1, Stephan Hunziker1, Martin Huppert1, Gerhard Ingold1, Rasmus Ischebeck1, Markus Janousch1, Philip J. M. Johnson1, Steven L. Johnson4, Steven L. Johnson1, Pavle Juranić1, M. Jurcevic1, Maik Kaiser1, Roger Kalt1, B. Keil1, Daniela Kiselev1, Christoph Kittel1, Gregor Knopp1, W. Koprek1, Michael Laznovsky1, Henrik T. Lemke1, Daniel Llorente Sancho1, Florian Löhl1, Alexander Malyzhenkov1, Giulia F. Mancini2, Giulia F. Mancini1, Roman Mankowsky1, F. Marcellini1, G. Marinkovic1, Isabelle Martiel1, Fabian Märki1, Christopher J. Milne1, Aldo Mozzanica1, Karol Nass1, Gian Luca Orlandi1, Cigdem Ozkan Loch1, Martin Paraliev1, Bruce D. Patterson1, Luc Patthey1, Bill Pedrini1, Marco Pedrozzi1, Claude Pradervand1, Peter Radi1, Jean-Yves Raguin1, S. Redford1, Jens Rehanek1, Sven Reiche1, Leonid Rivkin1, Albert Romann1, Leonardo Sala1, Mathias Sander1, Thomas Schietinger1, T. Schilcher1, Volker Schlott1, Thomas J. Schmidt1, Mike Seidel1, M. Stadler1, L. Stingelin1, C. Svetina1, D. Treyer1, A. Trisorio1, Carlo Vicario1, Didier Voulot1, A. Wrulich1, Serhane Zerdane1, Elke Zimoch1 
TL;DR: In this article, the first lasing results of SwissFEL, a hard X-ray free-electron laser (FEL) that recently came into operation at the Paul Scherrer Institute in Switzerland, were presented.
Abstract: We present the first lasing results of SwissFEL, a hard X-ray free-electron laser (FEL) that recently came into operation at the Paul Scherrer Institute in Switzerland. SwissFEL is a very stable, compact and cost-effective X-ray FEL facility driven by a low-energy and ultra-low-emittance electron beam travelling through short-period undulators. It delivers stable hard X-ray FEL radiation at 1-A wavelength with pulse energies of more than 500 μJ, pulse durations of ~30 fs (root mean square) and spectral bandwidth below the per-mil level. Using special configurations, we have produced pulses shorter than 1 fs and, in a different set-up, broadband radiation with an unprecedented bandwidth of ~2%. The extremely small emittance demonstrated at SwissFEL paves the way for even more compact and affordable hard X-ray FELs, potentially boosting the number of facilities worldwide and thereby expanding the population of the scientific community that has access to X-ray FEL radiation. The first lasing results at SwissFEL, an X-ray free-electron laser, are presented, highlighting the facility’s unique capabilities. A general comparison to other major facilities is also provided.

118 citations

Journal ArticleDOI
TL;DR: The temporal coherence properties of soft x-ray free electron laser pulses at FLASH are measured at 23.9 nm by interfering two time-delayed partial beams directly on a CCD camera with a non-monotonic decay, which can be rationalized by the presence of multiple pulse structure.
Abstract: The temporal coherence properties of soft x-ray free electron laser pulses at FLASH are measured at 23.9 nm by interfering two timedelayed partial beams directly on a CCD camera. The partial beams are obtained by wave front beam splitting in an autocorrelator operating at photon energies from hν=30 to 200 eV. At zero delay a visibility of (0.63 ± 0.04) is measured. The delay of one partial beam reveals a coherence time of 6 fs at 23.9 nm. The visibility further displays a non-monotonic decay, which can be rationalized by the presence of multiple pulse structure.

115 citations

Journal ArticleDOI
TL;DR: It is suspected that the collective giant 4d resonance of xenon is the driving force behind the effect that arises in this spectral range and cannot be explained by the standard theories developed for optical strong-field phenomena.
Abstract: Exceptional behavior of light-matter interaction in the extreme ultraviolet is demonstrated. The photoionization of different rare gases was compared at the free-electron laser in Hamburg, FLASH, by applying ion spectroscopy at the wavelength of 13.7 nm and irradiance levels of thousands of terawatts per square centimeter. In the case of xenon, the degree of nonlinear photoionization was found to be significantly higher than for neon, argon, and krypton. This target specific behavior cannot be explained by the standard theories developed for optical strong-field phenomena. We suspect that the collective giant 4d resonance of xenon is the driving force behind the effect that arises in this spectral range.

109 citations


Cited by
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01 Jan 2016
TL;DR: In this paper, the authors present the principles of optics electromagnetic theory of propagation interference and diffraction of light, which can be used to find a good book with a cup of coffee in the afternoon, instead of facing with some infectious bugs inside their computer.
Abstract: Thank you for reading principles of optics electromagnetic theory of propagation interference and diffraction of light. As you may know, people have search hundreds times for their favorite novels like this principles of optics electromagnetic theory of propagation interference and diffraction of light, but end up in harmful downloads. Rather than enjoying a good book with a cup of coffee in the afternoon, instead they are facing with some infectious bugs inside their computer.

2,213 citations

Journal ArticleDOI
01 Jul 2010-Nature
TL;DR: The nature of the electronic response in a free atom to unprecedented high-intensity, short-wavelength, high-fluence radiation is revealed and successful modelling of X-ray/atom interactions using a straightforward rate equation approach augurs favourably for extension to complex systems.
Abstract: An era of exploring the interactions of high-intensity, hard X-rays with matter has begun with the start-up of a hard-X-ray free-electron laser, the Linac Coherent Light Source (LCLS). Understanding how electrons in matter respond to ultra-intense X-ray radiation is essential for all applications. Here we reveal the nature of the electronic response in a free atom to unprecedented high-intensity, short-wavelength, high-fluence radiation (respectively 10(18) W cm(-2), 1.5-0.6 nm, approximately 10(5) X-ray photons per A(2)). At this fluence, the neon target inevitably changes during the course of a single femtosecond-duration X-ray pulse-by sequentially ejecting electrons-to produce fully-stripped neon through absorption of six photons. Rapid photoejection of inner-shell electrons produces 'hollow' atoms and an intensity-induced X-ray transparency. Such transparency, due to the presence of inner-shell vacancies, can be induced in all atomic, molecular and condensed matter systems at high intensity. Quantitative comparison with theory allows us to extract LCLS fluence and pulse duration. Our successful modelling of X-ray/atom interactions using a straightforward rate equation approach augurs favourably for extension to complex systems.

649 citations

Journal ArticleDOI
TL;DR: In this paper, a unified formalism is presented for the betatron radiation of trapped and accelerated electrons in the so-called bubble regime, the synchrotron radiation of laser-accelerated electrons in usual meter-scale undulators, the nonlinear Thomson scattering from relativistic electrons oscillating in an intense laser field, and the Thomson backscattered radiation of a laser beam by laser accelerated electrons.
Abstract: Relativistic interaction of short-pulse lasers with underdense plasmas has recently led to the emergence of a novel generation of femtosecond x-ray sources. Based on radiation from electrons accelerated in plasma, these sources have the common properties to be compact and to deliver collimated, incoherent, and femtosecond radiation. In this article, within a unified formalism, the betatron radiation of trapped and accelerated electrons in the so-called bubble regime, the synchrotron radiation of laser-accelerated electrons in usual meter-scale undulators, the nonlinear Thomson scattering from relativistic electrons oscillating in an intense laser field, and the Thomson backscattered radiation of a laser beam by laser-accelerated electrons are reviewed. The underlying physics is presented using ideal models, the relevant parameters are defined, and analytical expressions providing the features of the sources are given. Numerical simulations and a summary of recent experimental results on the different mechanisms are also presented. Each section ends with the foreseen development of each scheme. Finally, one of the most promising applications of laser-plasma accelerators is discussed: the realization of a compact free-electron laser in the x-ray range of the spectrum. In the conclusion, the relevant parameters characterizing each sources are summarized. Considering typical laser-plasma interaction parameters obtained with currently available lasers, examples of the source features are given. The sources are then compared to each other in order to define their field of applications.

634 citations

Journal ArticleDOI
TL;DR: In this article, the authors review the recent developments in the electric field control of magnetism in multiferroic heterostructures, which consist of heterogeneous materials systems where a magnetoelectric coupling is engineered between magnetic and ferroelectric components.
Abstract: We review the recent developments in the electric field control of magnetism in multiferroic heterostructures, which consist of heterogeneous materials systems where a magnetoelectric coupling is engineered between magnetic and ferroelectric components. The magnetoelectric coupling in these composite systems is interfacial in origin, and can arise from elastic strain, charge, and exchange bias interactions, with different characteristic responses and functionalities. Moreover, charge transport phenomena in multiferroic heterostructures, where both magnetic and ferroelectric order parameters are used to control charge transport, suggest new possibilities to control the conduction paths of the electron spin, with potential for device applications.

438 citations

Journal ArticleDOI
TL;DR: In this paper, the authors provide an overview of key phenomena arising from laser-cluster interactions with focus on nonlinear optical excitations and discuss the underlying processes according to the current understanding.
Abstract: Laser excitation of nanometer-sized atomic and molecular clusters offers various opportunities to explore and control ultrafast many-particle dynamics. Whereas weak laser fields allow the analysis of photoionization, excited-state relaxation, and structural modifications on these finite quantum systems, large-amplitude collective electron motion and Coulomb explosion can be induced with intense laser pulses. This review provides an overview of key phenomena arising from laser-cluster interactions with focus on nonlinear optical excitations and discusses the underlying processes according to the current understanding. A general survey covers basic cluster properties and excitation mechanisms relevant for laser-driven cluster dynamics. Then, after an excursion in theoretical and experimental methods, results for single-photon and multiphoton excitations are reviewed with emphasis on signatures from time- and angular-resolved photoemission. A key issue of this review is the broad spectrum of phenomena arising from clusters exposed to strong fields, where the interaction with the laser pulse creates short-lived and dense nanoplasmas. The implications for technical developments such as the controlled generation of ion, electron, and radiation pulses will be addressed along with corresponding examples. Finally, future prospects of laser-cluster research as well as experimental and theoretical challenges are discussed.

391 citations