Zobrazeno 1 - 10
of 305
pro vyhledávání: '"Baum Peter"'
Publikováno v:
BIO Web of Conferences, Vol 129, p 09002 (2024)
Externí odkaz:
https://doaj.org/article/8f85c600adb144079a335de7dece0d8a
Materials with switchable nanostructured surfaces enable optical and electronic functionalities beyond those of natural materials. Here we report the creation of self-organized, re-writable, laser-induced surface structures in single-crystalline vana
Externí odkaz:
http://arxiv.org/abs/2408.14364
The need for ever-faster information processing requires extremely small devices operating at frequencies approaching the terahertz and petahertz regimes. For the diagnostics of such devices, researchers need a spatiotemporal tool that surpasses the
Externí odkaz:
http://arxiv.org/abs/2401.15653
Autor:
Morimoto, Yuya, Baum, Peter
Recent advances in electron microscopy trigger the question whether attosecond electron diffraction can resolve atomic-scale electron dynamics in crystalline materials in space and time. Here we explore the physics of the relevant electron-lattice sc
Externí odkaz:
http://arxiv.org/abs/2311.03766
The Ising model is one of the simplest and most well-established concepts to simulate phase transformations in complex materials. However, its most central constant, the interaction strength J between two nearest neighbors, is hard to obtain. Here we
Externí odkaz:
http://arxiv.org/abs/2306.09722
Publikováno v:
EPJ Web of Conferences, Vol 205, p 01019 (2019)
We report a surprisingly infrared (MIR) pulse generation in simultaneous interplay of intra-pulse self-phase-modulation and dispersion. broadband and efficient middle-LiGaS2 (LGS) by invoking a difference frequency generation,
Externí odkaz:
https://doaj.org/article/e6ce6e39db5f4c5eb01cb386eddd2516
Autor:
Ryabov Andrey, Baum Peter
Publikováno v:
EPJ Web of Conferences, Vol 205, p 08003 (2019)
We advance ultrafast electron microscopy from atomic motions into the domain of electron-dynamics. Sub-light-cycle electron pulses deflected by time-frozen fields reveal the electromagnetic fields around a metamaterial element with sub-cycle and sub-
Externí odkaz:
https://doaj.org/article/b32f1dfb17794b8ab86642cfb985b1ba
Autor:
Tsarev Maxim, Baum Peter
Publikováno v:
EPJ Web of Conferences, Vol 205, p 02018 (2019)
We show theoretically and by simulations how coherent transition radiation from tilted surfaces can be used for characterization of attosecond free-electron pulses such as used for pump-probe electron microscopy and diffraction. The tilted geometries
Externí odkaz:
https://doaj.org/article/f55ee5eb02514fd78e8ade5f222560e2
Autor:
Morimoto Yuya, Baum Peter
Publikováno v:
EPJ Web of Conferences, Vol 205, p 08008 (2019)
Attosecond imaging with electron beams can access optical-field-driven electron dynamics in space and time. Here we report first diffraction and microscopy experiments with attosecond electron pulses. We study attosecond-level timing of Bragg-spot em
Externí odkaz:
https://doaj.org/article/cb0fea5e41a44b6a8184e06e8713ecc8