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Caretta A, Laterza S, Bonanni V, Sergo R, Dri C, Cautero G, Galassi F, Zamolo M, Simoncig A, Zangrando M, Gessini A, Zilio SD, Flammini R, Moras P, Demidovich A, Danailov M, Parmigiani F, Malvestuto M. A novel free-electron laser single-pulse Wollaston polarimeter for magneto-dynamical studies. STRUCTURAL DYNAMICS (MELVILLE, N.Y.) 2021; 8:034304. [PMID: 34169118 PMCID: PMC8214468 DOI: 10.1063/4.0000104] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 05/26/2021] [Indexed: 06/13/2023]
Abstract
Here, we report on the conceptual design, the hardware realization, and the first experimental results of a novel and compact x-ray polarimeter capable of a single-pulse linear polarization angle detection in the extreme ultraviolet photon energy range. The polarimeter is tested by performing time resolved pump-probe experiments on a Ni80Fe20 Permalloy film at the M2,3 Ni edge at an externally seeded free-electron laser source. Comparison with similar experiments reported in the literature shows the advantages of our approach also in view of future experiments.
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Affiliation(s)
- Antonio Caretta
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, Basovizza, 34149 Trieste, Italy
| | | | - Valentina Bonanni
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, Basovizza, 34149 Trieste, Italy
| | - Rudi Sergo
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, Basovizza, 34149 Trieste, Italy
| | | | - Giuseppe Cautero
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, Basovizza, 34149 Trieste, Italy
| | - Fabio Galassi
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, Basovizza, 34149 Trieste, Italy
| | - Matteo Zamolo
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, Basovizza, 34149 Trieste, Italy
| | - Alberto Simoncig
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, Basovizza, 34149 Trieste, Italy
| | - Marco Zangrando
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, Basovizza, 34149 Trieste, Italy
| | - Alessandro Gessini
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, Basovizza, 34149 Trieste, Italy
| | - Simone Dal Zilio
- Istituto Officina Dei Materiali-CNR, Strada Statale 14 - km 163.5 in AREA Science Park, Basovizza, 34149 Trieste, Italy
| | - Roberto Flammini
- CNR-ISM, Istituto di Struttura della Materia, Via del Fosso del Cavaliere 100, I-00133 Roma, Italy
| | - Paolo Moras
- CNR-ISM, Istituto di Struttura della Materia, Strada Statale 14 - km 163.5 in AREA Science Park, Basovizza, 34149 Trieste, Italy
| | - Alexander Demidovich
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, Basovizza, 34149 Trieste, Italy
| | - Miltcho Danailov
- Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14 - km 163.5 in AREA Science Park, Basovizza, 34149 Trieste, Italy
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Schümmer A, Mertins HC, Schneider CM, Adam R, Trellenkamp S, Borowski R, Bürgler DE, Juschkin L, Berges U. A scanning reflection X-ray microscope for magnetic imaging in the EUV range. JOURNAL OF SYNCHROTRON RADIATION 2019; 26:2040-2049. [PMID: 31721749 DOI: 10.1107/s1600577519012219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
The mechanical setup of a novel scanning reflection X-ray microscope is presented. It is based on zone plate optics optimized for reflection mode in the EUV spectral range. The microscope can operate at synchrotron radiation beamlines as well as at laboratory-based plasma light sources. In contrast to established X-ray transmission microscopes that use thin foil samples, the new microscope design presented here allows the investigation of any type of bulk materials. Importantly, this permits the investigation of magnetic materials by employing experimental techniques based on X-ray magnetic circular dichroism, X-ray linear magnetic dichroism or the transversal magneto-optical Kerr effect (T-MOKE). The reliable functionality of the new microscope design has been demonstrated by T-MOKE microscopy spectra of Fe/Cr-wedge/Fe trilayer samples. The spectra were recorded at various photon energies across the Fe 3p edge revealing the orientation of magnetic domains in the sample.
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Affiliation(s)
| | - H Ch Mertins
- FH-Münster, Stegerwaldstraße 39, 48565 Steinfurt, Germany
| | | | - Roman Adam
- Forschungszenrum Jülich, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
| | | | - Rene Borowski
- Forschungszenrum Jülich, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
| | | | - Larissa Juschkin
- Forschungszenrum Jülich, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
| | - Ulf Berges
- Zentrum für Synchrotronstrahlung DELTA, Maria-Goeppert-Mayer-Straße, 44227 Dortmund, Germany
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Gaballah AEH, Nicolosi P, Ahmed N, Jimenez K, Pettinari G, Gerardino A, Zuppella P. EUV polarimetry for thin film and surface characterization and EUV phase retarder reflector development. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:015108. [PMID: 29390727 DOI: 10.1063/1.5010786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The knowledge and the manipulation of light polarization state in the vacuum ultraviolet and extreme ultraviolet (EUV) spectral regions play a crucial role from materials science analysis to optical component improvements. In this paper, we present an EUV spectroscopic ellipsometer facility for polarimetry in the 90-160 nm spectral range. A single layer aluminum mirror to be used as a quarter wave retarder has been fully characterized by deriving the optical and structural properties from the amplitude component and phase difference δ measurements. The system can be suitable to investigate the properties of thin films and optical coatings and optics in the EUV region.
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Affiliation(s)
- A E H Gaballah
- University of Padova, Department of Information Engineering, Via Gradenigo 6B, 35131 Padova, Italy
| | - P Nicolosi
- University of Padova, Department of Information Engineering, Via Gradenigo 6B, 35131 Padova, Italy
| | - Nadeem Ahmed
- University of Padova, Department of Information Engineering, Via Gradenigo 6B, 35131 Padova, Italy
| | - K Jimenez
- University of Padova, Department of Information Engineering, Via Gradenigo 6B, 35131 Padova, Italy
| | - G Pettinari
- Italian National Research Council-Institute for Photonics and Nanotechnologies (CNR-IFN), Via Cineto Romano 42, Rome 00156, Italy
| | - A Gerardino
- Italian National Research Council-Institute for Photonics and Nanotechnologies (CNR-IFN), Via Cineto Romano 42, Rome 00156, Italy
| | - P Zuppella
- CNR-IFN UOS Padova, Via Trasea 7, 35131 Padova, Italy
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Measurement of the Resonant Magneto-Optical Kerr Effect Using a Free Electron Laser. APPLIED SCIENCES-BASEL 2017. [DOI: 10.3390/app7070662] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wilson D, Rudolf D, Weier C, Adam R, Winkler G, Frömter R, Danylyuk S, Bergmann K, Grützmacher D, Schneider CM, Juschkin L. Generation of circularly polarized radiation from a compact plasma-based extreme ultraviolet light source for tabletop X-ray magnetic circular dichroism studies. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:103110. [PMID: 25362374 DOI: 10.1063/1.4897491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Generation of circularly polarized light in the extreme ultraviolet (EUV) spectral region (about 25 eV-250 eV) is highly desirable for applications in spectroscopy and microscopy but very challenging to achieve in a small-scale laboratory. We present a compact apparatus for generation of linearly and circularly polarized EUV radiation from a gas-discharge plasma light source between 50 eV and 70 eV photon energy. In this spectral range, the 3p absorption edges of Fe (54 eV), Co (60 eV), and Ni (67 eV) offer a high magnetic contrast often employed for magneto-optical and electron spectroscopy as well as for magnetic imaging. We simulated and designed an instrument for generation of linearly and circularly polarized EUV radiation and performed polarimetric measurements of the degree of linear and circular polarization. Furthermore, we demonstrate first measurements of the X-ray magnetic circular dichroism at the Co 3p absorption edge with a plasma-based EUV light source. Our approach opens the door for laboratory-based, element-selective spectroscopy of magnetic materials and spectro-microscopy of ferromagnetic domains.
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Affiliation(s)
- Daniel Wilson
- RWTH Aachen University, Experimental Physics of EUV, Steinbachstraße 15, 52074 Aachen, Germany
| | - Denis Rudolf
- RWTH Aachen University, Experimental Physics of EUV, Steinbachstraße 15, 52074 Aachen, Germany
| | - Christian Weier
- Forschungszentrum Jülich GmbH, Peter Grünberg Institut (PGI-6), JARA-FIT, 52425 Jülich, Germany
| | - Roman Adam
- Forschungszentrum Jülich GmbH, Peter Grünberg Institut (PGI-6), JARA-FIT, 52425 Jülich, Germany
| | - Gerrit Winkler
- Institut für Angewandte Physik, Universität Hamburg, Jungiusstraße 11, 20355 Hamburg, Germany
| | - Robert Frömter
- Institut für Angewandte Physik, Universität Hamburg, Jungiusstraße 11, 20355 Hamburg, Germany
| | - Serhiy Danylyuk
- RWTH Aachen University, Chair for Technology of Optical Systems, JARA-FIT, Steinbachstraße 15, 52074 Aachen, Germany
| | - Klaus Bergmann
- Fraunhofer Institute for Laser Technology, Steinbachstrasse 15, 52074 Aachen, Germany
| | - Detlev Grützmacher
- Forschungszentrum Jülich GmbH, Peter Grünberg Institut (PGI-9), JARA-FIT, 52425 Jülich, Germany
| | - Claus M Schneider
- Forschungszentrum Jülich GmbH, Peter Grünberg Institut (PGI-6), JARA-FIT, 52425 Jülich, Germany
| | - Larissa Juschkin
- RWTH Aachen University, Experimental Physics of EUV, Steinbachstraße 15, 52074 Aachen, Germany
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