Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Peter Hommelhoff"'
Autor:
Lennart Seiffert, Ferenc Krausz, Boris Bergues, Ancyline Maliakkal, Matthias F. Kling, Johannes Blöchl, Peter Hommelhoff, Philipp Rosenberger, Thomas Fennel, Johannes Schötz, Dmitry Zimin
Publikováno v:
Nanophotonics, Vol 10, Iss 14, Pp 3769-3775 (2021)
Nanophotonics
Nanophotonics
Strong-field photoemission from nanostructures and the associated temporally modulated currents play a key role in the development of ultrafast vacuum optoelectronics. Optical light fields could push their operation bandwidth into the petahertz domai
Publikováno v:
Nanophotonics, Vol 10, Iss 14, Pp 3717-3721 (2021)
We demonstrate coherent control in photoemission from a gold needle tip using an ω − 2ω field composed of strong few-cycle laser pulses with a nearfield intensity of ∼4 TW/cm2. We obtain the nearfield intensity from electron energy spectra, sho
Publikováno v:
Journal of Vacuum Science & Technology B
Not long after the laser was invented, it has been marked as a candidate source of strong, high-frequency electromagnetic radiation for acceleration of particles. Indeed, while the complex particle accelerator facilities today are an astonishing culm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d18556346bc384d57c520c174d7895e
http://arxiv.org/abs/2205.12132
http://arxiv.org/abs/2205.12132
Autor:
Benedikt Hermann, Urs Haeusler, Gyanendra Yadav, Adrian Kirchner, Thomas Feurer, Carsten Welsch, Peter Hommelhoff, Rasmus Ischebeck
Publikováno v:
Hermann, Benedikt; Haeusler, Urs; Yadav, Gyanendra; Kirchner, Adrian; Feurer, Thomas; Welsch, Carsten; Hommelhoff, Peter; Ischebeck, Rasmus (2022). Inverse-Designed Narrowband THz Radiator for Ultrarelativistic Electrons. ACS Photonics, 9(4), pp. 1143-1149. American Chemical Society 10.1021/acsphotonics.1c01932
ACS PHOTONICS
ACS PHOTONICS
THz radiation finds various applications in science and technology. Pump-probe experiments at free-electron lasers typically rely on THz radiation generated by optical rectification of ultrafast laser pulses in electro-optic crystals. A compact and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7b2b7b5d31b2d834325eb96a5105775
https://boris.unibe.ch/167611/1/acsphotonics.1c01932.pdf
https://boris.unibe.ch/167611/1/acsphotonics.1c01932.pdf
Autor:
Johannes Blöchl, Johannes Schötz, Ancyline Maliakkal, Natālija Šreibere, Zilong Wang, Philipp Rosenberger, Peter Hommelhoff, Andre Staudte, Paul B. Corkum, Boris Bergues, Matthias F. Kling
Publikováno v:
Optica
Measuring the field of visible light with high spatial resolution has been challenging, as many established methods only detect a focus-averaged signal. Here, we introduce a near-field method for optical field sampling that overcomes that limitation
The generation of radiation from free electrons passing a grating, known as Smith-Purcell radiation, finds various applications including non-destructive beam diagnostics and tunable light sources, ranging from terahertz towards X-rays. So far, the g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c02e56850a7fde968b08bf60737acdce
Publikováno v:
Journal of Physics: Photonics
Journal of Physics: Photonics, 2020, ⟨10.1088/2515-7647/ab7d82⟩
Journal of Physics: Photonics, 2020, ⟨10.1088/2515-7647/ab7d82⟩
Two-dimensional materials with hexagonal symmetry such as graphene and transition metal dichalcogenides are unique materials to study light-field-controlled electron dynamics inside of a solid. Around the K-point, the dispersion relation represents a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff9c95f4dd8b9eefea0ffd9711fbc0f9
http://arxiv.org/abs/2002.05552
http://arxiv.org/abs/2002.05552
Autor:
Takuya Higuchi, Lothar Ley, Peter Hommelhoff, Christian Heide, Jürgen Ristein, Martin Hauck, Heiko B. Weber
Publikováno v:
Nature Photonics
Nature Photonics, 2020, ⟨10.1038/s41566-019-0580-6⟩
Nature Photonics, 2020, ⟨10.1038/s41566-019-0580-6⟩
The photoelectric effect has a sister process relevant in optoelectronics called internal photoemission1–3. Here an electron is photoemitted from a metal into a semiconductor4,5. While the photoelectric effect takes place within less than 100 attos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92de93ecda1919807fdeb68868a5187c
http://arxiv.org/abs/2001.02989
http://arxiv.org/abs/2001.02989
Coating metal nanotips with a negative electron affinity material like hydrogen-terminated diamond bears promise for a high brightness photocathode. We report a recipe on the fabrication of diamond coated tungsten tips. A tungsten wire is etched elec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ea5d39a4cc73c952599ac40369e02ca
http://arxiv.org/abs/1902.01369
http://arxiv.org/abs/1902.01369
Autor:
Yujia Yang, Karl K. Berggren, Jacob Hammer, Christoph Kohstall, Peter Hommelhoff, Mark A. Kasevich, Pieter Kruit, Chung-Soo Kim, Philipp Weber, Brannon B. Klopfer, Richard G. Hobbs, Vitor R. Manfrinato, Sebastian Thomas, Thomas Juffmann
Publikováno v:
Elsevier
One of the astounding consequences of quantum mechanics is that it allows the detection of a target using an incident probe, with only a low probability of interaction of the probe and the target. This ‘quantum weirdness’ could be applied in the