Výsledky vyhledávání - "Manfred Mascheck"

Exploration of the nonideal behavior observed in engineered, multilayer MgO/Ag/MgO photocathodes

Autor: Zhengrong Lee, Jeff Terry, Manfred Mascheck, Linda Spentzouris

Publikováno v: Journal of Vacuum Science & Technology A. 39:063202

Improving photocathode performance by increasing electron emission while lowering the angular spread of emitted electrons can improve particle accelerator performance, expanding the reach of both fundamental and applied science. Materials science exp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::959a279fd38fbe6bea3cca20b7fc8d49
https://doi.org/10.1116/6.0001136

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Effects of nitridation on SiC/SiO$_2$ structures studied by hard X-ray photoelectron spectroscopy

Autor: Tomas Wiell, Manesh V. Mistry, Anna Regoutz, J. Matthias Kahk, Thomas Aichinger, Judith Berens, Sebastian Bichelmaier, Nathalie K. Fernando, Pardeep K. Thakur, Susanna K. Eriksson, Gregor Pobegen, Manfred Mascheck, Tien-Lin Lee, Johannes Lischner

SiC is set to enable a new era in power electronics impacting a wide range of energy technologies, from electric vehicles to renewable energy. Its physical characteristics outperform silicon in many aspects, including band gap, breakdown field, and t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc1be92a8fc9d7f7316f610cccf415c5

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A novel laboratory-based hard X-ray photoelectron spectroscopy system

Autor: Manfred Mascheck, Anna Regoutz, Tomas Wiell, Cristopher Liljenberg, David O. Scanlon, Benjamin A. D. Williamson, Susanna K. Eriksson, Paul Palmgren, Kornelius Tetzner

Publikováno v: The Review of scientific instruments. 89(7)

Hard X-ray photoelectron spectroscopy (HAXPES) has seen continuous development since the first experiments in the 1970s. HAXPES systems are predominantly located at synchrotron sources due to low photoionization cross sections necessitating high X-ra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a9f3f6e028ee20ee5c37d49e5183919
https://pubmed.ncbi.nlm.nih.gov/30068129

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Characterizing the optical near-field in the vicinity of a sharp metallic nanoprobe by angle-resolved electron kinetic energy spectroscopy

Autor: Manfred Mascheck, Petra Groß, Slawa Schmidt, Björn Piglosiewicz, Doo Jae Park, Christoph Lienau, Heiko Kollmann

Publikováno v: Annalen der Physik. 525:135-142

The effect of the near-field distribution of sharply etched, nanometer-sized gold tapers on angle-resolved kinetic energy spectra of electrons photoemitted by ultrafast laser pulse irradiation is investigated both experimentally and theoretically. In

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::abf4b7ea3da7b24310973ad031481a43
https://doi.org/10.1002/andp.201200216

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Near-field-assisted localization: effect of size and filling factor of randomly distributed zinc oxide nanoneedles on multiple scattering and localization of light

Autor: Martin Silies, Heinz Kalt, Christoph Lienau, Erich Runge, Slawa Schmidt, Kokoro Kitamura, Motoicho Ohtsu, David Leipold, Takashi Yatsui, Manfred Mascheck, Heiko Kollmann, Janos Sartor

Publikováno v: Applied Physics B. 122

We investigate the influence of the diameter and the filling factor of randomly arranged ZnO nanoneedles on the multiple scattering and localization of light in disordered dielectrics. Coherent, ultra-broadband second-harmonic (SH) microscopy is used

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dea1a04f9ab082ed9e18f5c09e30911c
https://doi.org/10.1007/s00340-016-6456-2

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Observing the localization of light in space and time by ultrafast second-harmonic microscopy

Autor: Christoph Lienau, Motoichi Ohtsu, Kokoro Kitamura, David Leipold, Takashi Yatsui, Erich Runge, Martin Silies, Manfred Mascheck, Slawa Schmidt

Publikováno v: Nature Photonics. 6:293-298

Multiple coherent scattering and the constructive interference of certain scattering paths form the common scheme of several remarkable localization phenomena of classical and quantum waves in randomly disordered media1. Prominent examples are electr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c3a7fbb82465b4f0f8aa841eb1150ca5
https://doi.org/10.1038/nphoton.2012.69

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Strong field acceleration and steering of ultrafast electron pulses from a sharp metallic nanotip

Autor: Bjoern Piglosiewicz, Heiko Kollmann, Slawa Schmidt, Manfred Mascheck, Christoph Lienau, Doo Jae Park

Publikováno v: Physical review letters. 109(24)

We report a strong, laser-field induced modification of the propagation direction of ultrashort electron pulses emitted from nanometer-sized gold tapers. Angle-resolved kinetic energy spectra of electrons emitted from such tips are recorded using ult

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be8b0f52376cfa22559311e74758bd83
https://pubmed.ncbi.nlm.nih.gov/23368330

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Ultrasmall bullets of light—focusing few-cycle light pulses to the diffraction limit

Autor: Diyar Sadiq, Slawa Schmidt, Manfred Mascheck, Parinda Vasa, Björn Piglosiewicz, Christoph Lienau, Martin Silies

Publikováno v: Optics Express. 19:14451

We demonstrate an essentially dispersion-free and diffraction-limited focusing of few-cycle laser pulses through all-reflective microscope objectives. By transmitting 6-fs-pulses from a Ti:sapphire oscillator through an all-reflective 0.5 NA objectiv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1d1277900a55a3575428bd37679cfaf
https://doi.org/10.1364/oe.19.014451

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