Now showing 1 - 6 of 6
  • 2013Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","19311"],["dc.bibliographiccitation.issue","16"],["dc.bibliographiccitation.journal","Optics Express"],["dc.bibliographiccitation.lastpage","19323"],["dc.bibliographiccitation.volume","21"],["dc.contributor.author","Döring, Florian"],["dc.contributor.author","Robisch, Anna-Lena"],["dc.contributor.author","Eberl, Christian"],["dc.contributor.author","Osterhoff, Markus"],["dc.contributor.author","Ruhlandt, Aike"],["dc.contributor.author","Liese, Tobias"],["dc.contributor.author","Schlenkrich, Felix"],["dc.contributor.author","Hoffmann, S."],["dc.contributor.author","Bartels, Matthias"],["dc.contributor.author","Salditt, Tim"],["dc.contributor.author","Krebs, Hans-Ulrich"],["dc.date.accessioned","2020-11-05T15:05:23Z"],["dc.date.available","2020-11-05T15:05:23Z"],["dc.date.issued","2013"],["dc.description.abstract","Compound optics such as lens systems can overcome the limitations concerning resolution, efficiency, or aberrations which fabrication constraints would impose on any single optical element. In this work we demonstrate unprecedented sub-5 nm point focusing of hard x-rays, based on the combination of a high gain Kirkpatrick-Baez (KB) mirror system and a high resolution W/Si multilayer zone plate (MZP) for ultra-short focal length f. The pre-focusing allows limiting the MZP radius to below 2 mu m, compatible with the required 5 nm structure width and essentially unlimited aspect ratios, provided by enabling fabrication technology based on pulsed laser deposition (PLD) and focused ion beam (FIB). (c) 2013 Optical Society of America"],["dc.identifier.doi","10.1364/OE.21.019311"],["dc.identifier.gro","3142308"],["dc.identifier.isi","000323049900072"],["dc.identifier.pmid","23938848"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/68456"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-352.6"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation","SFB 755: Nanoscale Photonic Imaging"],["dc.relation.eissn","1094-4087"],["dc.relation.issn","1094-4087"],["dc.relation.orgunit","Institut für Materialphysik"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)"],["dc.subject.gro","x-ray optics"],["dc.title","Sub-5 nm hard x-ray point focusing by a combined Kirkpatrick-Baez mirror and multilayer zone plate"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
    Details DOI PMID PMC WOS
  • 2013Conference Paper
    [["dc.bibliographiccitation.artnumber","884802"],["dc.bibliographiccitation.volume","8848"],["dc.contributor.author","Osterhoff, Markus"],["dc.contributor.author","Bartels, Matthias"],["dc.contributor.author","Döring, Florian"],["dc.contributor.author","Eberl, Christian"],["dc.contributor.author","Hoinkes, Thomas"],["dc.contributor.author","Hoffmann-Urlaub, Sarah"],["dc.contributor.author","Liese, Tobias"],["dc.contributor.author","Radisch, Volker"],["dc.contributor.author","Rauschenbeutel, Arno"],["dc.contributor.author","Robisch, Anna Lena"],["dc.contributor.author","Ruhlandt, Aike"],["dc.contributor.author","Schlenkrich, Felix"],["dc.contributor.author","Salditt, Tim"],["dc.contributor.author","Krebs, Hans Ulrich"],["dc.contributor.editor","Goto, Shunji"],["dc.contributor.editor","Morawe, Christian"],["dc.contributor.editor","Khounsary, Ali"],["dc.date.accessioned","2020-02-24T13:39:51Z"],["dc.date.available","2020-02-24T13:39:51Z"],["dc.date.issued","2013"],["dc.description.abstract","We present experiments carried out using a combined hard x-ray focusing set-up preserving the benefits of a large-aperture Kirckpatrick-Baez (KB) mirror system and a small focal length multilayer zone plane (MZP). The high gain KB mirrors produce a pre-focus of 400 nm × 200 nm; in their defocus, two MZP lenses of diameter of 1.6 μm and 3.7 μm have been placed, with focal lengths of 50 μm and 250 μm respectively. The lenses have been produced using pulsed laser deposition (PLD) and focused ion beam (FIB). Forward simulations including error models based on measured deviations, auto-correlation analysis and three-plane phase reconstruction support two-dimensional focus sizes of 4.3 nm × 4.7 nm (7:9 keV, W/Si)1 and 4.3 nm ×5.9 nm (13:8 keV, W/ZrO2), respectively."],["dc.identifier.doi","10.1117/12.2025389"],["dc.identifier.gro","3145113"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/2814"],["dc.language.iso","en"],["dc.notes.intern","Crossref Import"],["dc.notes.status","final"],["dc.relation.conference","SPIE"],["dc.relation.crisseries","Proceedings of SPIE"],["dc.relation.eventend","2013-08-28"],["dc.relation.eventlocation","San Diego"],["dc.relation.eventstart","2013"],["dc.relation.isbn","978-0-8194-9698-0"],["dc.relation.ispartof","Advances in X-ray/EUV optics and components VIII"],["dc.relation.ispartofseries","Proceedings of SPIE; 8848"],["dc.relation.issn","0277-786X"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)"],["dc.subject.gro","x-ray optics"],["dc.title","Two-dimensional sub-5-nm hard x-ray focusing with MZP"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]
    Details DOI
  • 2014Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","638"],["dc.bibliographiccitation.journal","Applied Surface Science"],["dc.bibliographiccitation.lastpage","644"],["dc.bibliographiccitation.volume","307"],["dc.contributor.author","Eberl, Christian"],["dc.contributor.author","Döring, Florian"],["dc.contributor.author","Liese, Tobias"],["dc.contributor.author","Schlenkrich, Felix"],["dc.contributor.author","Roos, Burkhard"],["dc.contributor.author","Hahn, Matthias"],["dc.contributor.author","Hoinkes, Thomas"],["dc.contributor.author","Rauschenbeutel, Arno"],["dc.contributor.author","Osterhoff, Markus"],["dc.contributor.author","Salditt, Tim"],["dc.contributor.author","Krebs, Hans-Ulrich"],["dc.date.accessioned","2017-09-07T11:45:42Z"],["dc.date.available","2017-09-07T11:45:42Z"],["dc.date.issued","2014"],["dc.description.abstract","Recently, we demonstrated unprecedented sub-5 nm point focusing of hard X-rays (at 7.9 key) based on the combination of a high gain Kirkpatrick-Baez (KB) mirror system and a high resolution W/Si multilayer zone plate (MZP). This MZP was prepared by the combination of pulsed laser deposition (PLD) and focused ion beam (FIB). Despite the small focus size, the MZP's quality suffered from sufficient but comparatively low efficiency (2%). In this paper we discuss how to overcome limitations of MZP fabrication by PLD by investigating the material systems W/Si, WIZr02, and Ta205/Zr02. We give a detailed description on the optimization processes for the deposition of smooth multilayers with highly precise layer thicknesses on a rotating wire. Furthermore, we present our latest results regarding a Ta205/Zr02 MZP, which has been proven already to be a system of high potential in the very first experiments as the efficiency reached 6.9% (at 18 keV). 2014 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.apsusc.2014.04.089"],["dc.identifier.gro","3142089"],["dc.identifier.isi","000336596700088"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/4422"],["dc.language.iso","en"],["dc.notes.intern","WoS Import 2017-03-10 / Funder: Deutsche Forschungsgemeinschaft [SFB 755, SFB 1073]"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation","SFB 755: Nanoscale Photonic Imaging"],["dc.relation","SFB 1073: Kontrolle von Energiewandlung auf atomaren Skalen"],["dc.relation","SFB 1073 | Topical Area A | A02 Verständnis und Manipulation von Dissipationskanälen des Energietransports"],["dc.relation.eissn","1873-5584"],["dc.relation.issn","0169-4332"],["dc.relation.orgunit","Institut für Materialphysik"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)"],["dc.subject.gro","x-ray optics"],["dc.title","Fabrication of laser deposited high-quality multilayer zone plates for hard X-ray nanofocusing"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
    Details DOI WOS
  • 2011Conference Paper
    [["dc.bibliographiccitation.firstpage","5362"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","Applied Surface Science"],["dc.bibliographiccitation.lastpage","5365"],["dc.bibliographiccitation.volume","257"],["dc.contributor.author","Schlenkrich, Felix"],["dc.contributor.author","Seyffarth, Susanne"],["dc.contributor.author","Fuchs, Britta"],["dc.contributor.author","Krebs, Hans-Ulrich"],["dc.date.accessioned","2018-11-07T08:57:52Z"],["dc.date.available","2018-11-07T08:57:52Z"],["dc.date.issued","2011"],["dc.description.abstract","Different polymer-metal nanocomposites, metal clusters on a polymer surface and for the first time also polymer/metal multilayers, were pulsed laser deposited at a wavelength of 248 nm. Poly(methyl methacrylate)(PMMA) and Bisphenol Adimeth-acrylate (BisDMA), which strongly differ in their hardness of 3 and 180N/mm(2), respectively, were taken as polymer components. Metals Ag and Cu were chosen because of their different reactivity to polymers. When depositing Ag on PMMA, spherical clusters are formed due to high diffusion and total coalescence. For Cu, much smaller grains with partially elongated shapes occur because of lower diffusivity and incomplete coalescence. Compared to the results on the soft PMMA, the clusters formed on the harder BisDMA are much larger due to higher diffusivity on this underlayer. In PMMA/Cu multilayers, wavy layered structures and buckling is observed due to relaxation of compressive stress in the Cu layers. Smooth Cu layers with higher thicknesses can only be obtained, when the hardness of the polymer is sufficiently high, as in the case of BisDMA/Cu multilayers. (C) 2010 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.apsusc.2010.10.073"],["dc.identifier.isi","000288007500052"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/23507"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.publisher.place","Amsterdam"],["dc.relation.eventend","2010-06-11"],["dc.relation.eventlocation","Strasbourg, FRANCE"],["dc.relation.eventstart","2010-06-07"],["dc.relation.issn","1873-5584"],["dc.relation.issn","0169-4332"],["dc.relation.orgunit","Institut für Materialphysik"],["dc.title","Pulsed laser deposition of polymer-metal nanocomposites"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]
    Details DOI WOS
  • 2016Journal Article
    [["dc.bibliographiccitation.artnumber","301"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Applied Physics A"],["dc.bibliographiccitation.volume","122"],["dc.contributor.author","Dittrich, Arne"],["dc.contributor.author","Eberl, Christian"],["dc.contributor.author","Schlenkrich, Susanne"],["dc.contributor.author","Schlenkrich, Felix"],["dc.contributor.author","Döring, Florian"],["dc.contributor.author","Krebs, Hans-Ulrich"],["dc.date.accessioned","2018-11-07T10:16:31Z"],["dc.date.available","2018-11-07T10:16:31Z"],["dc.date.issued","2016"],["dc.description.abstract","In common, one of the most characteristic properties of pulsed laser deposition is the stoichiometry transfer between target and substrate, which has been used heavily for many complex systems. In this paper we show that it is yet possible to obtain drastic deviations from stoichiometry transfer in a binary system by just varying the fluence during laser deposition. In the W-Cu system, the W concentration of films grown from a composite W60Cu40 target (60 wt% W) was indeed continuously changed over an unprecedented large range of 0-70 wt% W. Close to the deposition threshold, pure Cu films are formed due to the much higher vapor pressure of Cu. At higher laser fluences, more and more W-rich W-Cu alloy samples are obtained, since ion implantation and intermixing processes occur. These alloys can reach W contents even higher than that of the target because of enhanced resputtering and reflection of the lighter Cu atoms at the film surface. Stoichiometric films with 60 wt% of W are only obtained at laser fluences around 2.7 J/cm(2), when the strong Cu evaporation from the target and reflection and resputtering effects of Cu at the film surface are in balance."],["dc.identifier.doi","10.1007/s00339-016-9883-3"],["dc.identifier.isi","000372259900042"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/41052"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1432-0630"],["dc.relation.issn","0947-8396"],["dc.title","Drastic deviations from stoichiometry transfer during pulsed laser deposition"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]
    Details DOI WOS
  • 2015Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","11"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Applied Physics A"],["dc.bibliographiccitation.lastpage","18"],["dc.bibliographiccitation.volume","119"],["dc.contributor.author","Doering, F."],["dc.contributor.author","Eberl, Christian"],["dc.contributor.author","Schlenkrich, Susanne"],["dc.contributor.author","Schlenkrich, Felix"],["dc.contributor.author","Hoffmann, S."],["dc.contributor.author","Liese, Tobias"],["dc.contributor.author","Krebs, Hans-Ulrich"],["dc.contributor.author","Pisana, S."],["dc.contributor.author","Santos, T."],["dc.contributor.author","Schuhmann, Henning"],["dc.contributor.author","Seibt, M."],["dc.contributor.author","Mansurova, M."],["dc.contributor.author","Ulrichs, Henning"],["dc.contributor.author","Zbarsky, Vladyslav"],["dc.contributor.author","Muenzenberg, Markus G."],["dc.date.accessioned","2018-11-07T09:59:19Z"],["dc.date.available","2018-11-07T09:59:19Z"],["dc.date.issued","2015"],["dc.description.abstract","An efficient way for minimizing phonon thermal conductivity in solids is to nanostructure them by means of reduced phonon mean free path, phonon scattering and phonon reflection at interfaces. A sophisticated approach toward this lies in the fabrication of thin multilayer films of different materials. In this paper, we show by femtosecond-pump-probe reflectivity measurements that in different multilayer systems with varying acoustic mismatch (consisting of metals, semiconductors, oxides and polymers), oscillations due to phonon localization can be observed. For the growth of multilayer films with well-defined layer thicknesses, we used magnetron sputtering, evaporation and pulsed laser deposition. By altering the material combinations and reducing the layer thicknesses down to 3 nm, we observed different mechanisms of phonon blocking, reaching in the frequency regime up to 360 GHz."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft [SFB 1073]"],["dc.identifier.doi","10.1007/s00339-015-9037-z"],["dc.identifier.isi","000351171600002"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/37563"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation","SFB 1073: Kontrolle von Energiewandlung auf atomaren Skalen"],["dc.relation","SFB 1073 | Topical Area A | A02 Verständnis und Manipulation von Dissipationskanälen des Energietransports"],["dc.relation.issn","1432-0630"],["dc.relation.issn","0947-8396"],["dc.relation.orgunit","Institut für Materialphysik"],["dc.title","Phonon localization in ultrathin layered structures"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
    Details DOI WOS