Schröder, Benjamin

[["dc.bibliographiccitation.artnumber","231105"],["dc.bibliographiccitation.issue","23"],["dc.bibliographiccitation.journal","Applied Physics Letters"],["dc.bibliographiccitation.volume","107"],["dc.contributor.author","Schroeder, Benjamin"],["dc.contributor.author","Sivis, Murat"],["dc.contributor.author","Bormann, Reiner"],["dc.contributor.author","Schäfer, Sascha"],["dc.contributor.author","Ropers, Claus"],["dc.date.accessioned","2018-11-07T09:47:38Z"],["dc.date.available","2018-11-07T09:47:38Z"],["dc.date.issued","2015"],["dc.description.abstract","We demonstrate multiphoton photoelectron emission from gold nanotips induced by nanofocusing surface plasmons, resonantly excited on the tip shaft by a grating coupler. The tip is integrated into an electron gun assembly, which facilitates control over the spatial emission sites and allows us to disentangle direct grating emission from plasmon-triggered apex emission. The nanoscale source size of this electron gun concept enables highly coherent electron pulses with applications in ultrafast electron imaging and diffraction. (C) 2015 AIP Publishing LLC."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft (DFG) [SFB-1073]"],["dc.identifier.doi","10.1063/1.4937121"],["dc.identifier.isi","000367010800005"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/35153"],["dc.language.iso","en"],["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 | A05 Nanoskalige Untersuchung raumzeitlicher Relaxation in heterogenen Systemen mit ultraschneller Transmissionselektronenmikroskopie"],["dc.relation.issn","1077-3118"],["dc.relation.issn","0003-6951"],["dc.title","An ultrafast nanotip electron gun triggered by grating-coupled surface plasmons"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","131102"],["dc.bibliographiccitation.issue","13"],["dc.bibliographiccitation.journal","Applied Physics Letters"],["dc.bibliographiccitation.volume","111"],["dc.contributor.author","Wimmer, Lara"],["dc.contributor.author","Schröder, Benjamin"],["dc.contributor.author","Sivis, Murat"],["dc.contributor.author","Herink, Georg"],["dc.contributor.author","Ropers, Claus"],["dc.date.accessioned","2019-11-28T10:28:21Z"],["dc.date.available","2019-11-28T10:28:21Z"],["dc.date.issued","2017"],["dc.description.abstract","We apply terahertz (THz) near-field streaking in a nanofocusing geometry to investigate plasmon polariton propagation on the shaft of a conical nanotip. By evaluating the delay between a streaking spectrogram for plasmon-induced photoemission with a measurement for direct apex excitation, we obtain an average plasmon group velocity, which is in agreement with numerical simulations. Combining plasmon-induced photoemission with THz near-field streaking facilitates extensive control over localized photoelectron sources for time-resolved imaging and diffraction."],["dc.identifier.doi","10.1063/1.4991860"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/62697"],["dc.language.iso","en"],["dc.relation","SFB 1073: Kontrolle von Energiewandlung auf atomaren Skalen"],["dc.relation","SFB 1073 | Topical Area C | C04 Untersuchung und Kontrolle photochemischer Reaktionen durch lokale optische Anregung im Rastertunnelmikroskop"],["dc.relation.issn","0003-6951"],["dc.relation.issn","1077-3118"],["dc.title","Clocking plasmon nanofocusing by THz near-field streaking"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","115408"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Physical Review. B"],["dc.bibliographiccitation.volume","93"],["dc.contributor.author","Schröder, Benjamin"],["dc.contributor.author","Ropers, Claus"],["dc.contributor.author","Yalunin, Sergey Valerevich"],["dc.date.accessioned","2020-12-10T18:20:24Z"],["dc.date.available","2020-12-10T18:20:24Z"],["dc.date.issued","2016"],["dc.description.abstract","We present an analytical description of the electron energy loss near plasmonic nanostructures with cylindrical symmetry as a three-step process: (i) electron-induced excitation of surface plasmon modes, (ii) their propagation and reflection, and (iii) the backaction on the electrons. The model incorporates relativistic effects, retardation, and light emission, and can treat arbitrary tilted electron trajectories. Convincing agreement with recent experimental data is demonstrated."],["dc.identifier.doi","10.1103/PhysRevB.93.115408"],["dc.identifier.eissn","2469-9969"],["dc.identifier.isi","000371734300006"],["dc.identifier.issn","2469-9950"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/75552"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["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 C | C04 Untersuchung und Kontrolle photochemischer Reaktionen durch lokale optische Anregung im Rastertunnelmikroskop"],["dc.relation.issn","2469-9969"],["dc.relation.issn","2469-9950"],["dc.title","Theory of electron energy loss near plasmonic wires, nanorods, and cones"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","033047"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","New Journal of Physics"],["dc.bibliographiccitation.volume","22"],["dc.contributor.author","Schröder, Benjamin"],["dc.contributor.author","Bunjes, Ole"],["dc.contributor.author","Wimmer, Lara"],["dc.contributor.author","Kaiser, Katharina"],["dc.contributor.author","Traeger, Georg A"],["dc.contributor.author","Kotzott, Thomas"],["dc.contributor.author","Ropers, Claus"],["dc.contributor.author","Wenderoth, Martin"],["dc.date.accessioned","2020-05-13T10:58:36Z"],["dc.date.available","2020-05-13T10:58:36Z"],["dc.date.issued","2020"],["dc.description.abstract","We investigate photocurrents driven by femtosecond laser excitation of a (sub)-nanometer tunnel junction in an ultrahigh vacuum low-temperature scanning tunneling microscope (STM). The optically driven charge transfer is revealed by tip retraction curves showing a current contribution for exceptionally large tip-sample distances, evidencing a strongly reduced effective barrier height for photoexcited electrons at higher energies. Our measurements demonstrate that the magnitude of the photo-induced electron transport can be controlled by the laser power as well as the applied bias voltage. In contrast, the decay constant of the photocurrent is only weakly affected by these parameters. Stable STM operation with photoelectrons is demonstrated by acquiring constant current topographies. An effective non-equilibrium electron distribution as a consequence of multiphoton absorption is deduced by the analysis of the photocurrent using a one-dimensional potential barrier model."],["dc.identifier.doi","10.1088/1367-2630/ab74ac"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/65298"],["dc.language.iso","en"],["dc.relation","SFB 1073: Kontrolle von Energiewandlung auf atomaren Skalen"],["dc.relation","SFB 1073 | Topical Area C | C04 Untersuchung und Kontrolle photochemischer Reaktionen durch lokale optische Anregung im Rastertunnelmikroskop"],["dc.relation.issn","1367-2630"],["dc.rights","CC BY 4.0"],["dc.title","Controlling photocurrent channels in scanning tunneling microscopy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","085411"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Physical Review. B"],["dc.bibliographiccitation.volume","92"],["dc.contributor.author","Schroeder, Benjamin"],["dc.contributor.author","Weber, Thorsten"],["dc.contributor.author","Yalunin, Sergey Valerevich"],["dc.contributor.author","Kiel, Thomas"],["dc.contributor.author","Matyssek, Christian"],["dc.contributor.author","Sivis, Murat"],["dc.contributor.author","Schäfer, Sascha"],["dc.contributor.author","von Cube, Felix"],["dc.contributor.author","Irsen, Stephan"],["dc.contributor.author","Busch, Kurt"],["dc.contributor.author","Ropers, Claus"],["dc.contributor.author","Linden, Stefan"],["dc.date.accessioned","2018-11-07T09:53:20Z"],["dc.date.available","2018-11-07T09:53:20Z"],["dc.date.issued","2015"],["dc.description.abstract","We report the spatial mapping of surface plasmons on conical gold nanotips by electron energy loss spectroscopy. We observe standing-wave patterns resulting from reflections of the fundamental surface-plasmon mode at the nanotip apex. The experimental results are in very good agreement with numerical calculations using the discontinuous Galerkin time-domain method and analytical computations based on a cylindrical mode expansion."],["dc.identifier.doi","10.1103/PhysRevB.92.085411"],["dc.identifier.isi","000359344700015"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/36310"],["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 C | C04 Untersuchung und Kontrolle photochemischer Reaktionen durch lokale optische Anregung im Rastertunnelmikroskop"],["dc.relation.issn","2469-9969"],["dc.relation.issn","2469-9950"],["dc.title","Real-space imaging of nanotip plasmons using electron energy loss spectroscopy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]