Zobrazeno 1 - 10
of 105
pro vyhledávání: '"Lemell Christoph"'
Autor:
Paschen Timo, Förster Michael, Krüger Michael, Lemell Christoph, Wachter Georg, Libisch Florian, Madlener Thomas, Burgdörfer Joachim, Hommelhoff Peter
Publikováno v:
EPJ Web of Conferences, Vol 205, p 05004 (2019)
We demonstrate that multi-photon photoemission including above-threshold multiphoton orders from a nanotip can be coherently controlled with the optical phase between two light fields. By focusing 74 fs drive pulses at 1560 nm and their second harmon
Externí odkaz:
https://doaj.org/article/6c7331bb420c46d4b9ed3e55bce19c62
The generation of high harmonics (HHG) in atomic systems by the highly non-linear response to an intense laser field is a prominent pathway to the synthesis of ever shorter laser pulses at increasingly higher photon energies. Extensions of this proce
Externí odkaz:
http://arxiv.org/abs/2110.09367
The field of attosecond physics has seen an almost explosive growth since the early 2000's and represents by now an increasing fraction of contributions to the bi-annual series of International Conferences of Photonic, Electronic, and Atomic Collisio
Externí odkaz:
http://arxiv.org/abs/2001.02900
Autor:
Lemell Christoph, Wachter Georg, Thomas Sebastian, Förster Michael, Schenk Markus, Krüger Michael, Burgdörfer Joachim, Hommelhoff Peter
Publikováno v:
EPJ Web of Conferences, Vol 41, p 01005 (2013)
With few-cycle laser oscillator pulses at 800 nm we observe strong-field and attosecond physics phenomena in electron spectra recorded at a nanoscale tungsten tip. We observe the rescattering plateau as well as a strong carrier-envelope phase depende
Externí odkaz:
https://doaj.org/article/27ed40c965c644458eef0ea9354be179
Autor:
Seiferle, Benedict, von der Wense, Lars, Bilous, Pavlo V., Amersdorffer, Ines, Lemell, Christoph, Libisch, Florian, Stellmer, Simon, Schumm, Thorsten, Düllmann, Christoph E., Pálffy, Adriana, Thirolf, Peter G.
The first nuclear excited state of $^{229}$Th offers the unique opportunity for laser-based optical control of a nucleus. Its exceptional properties allow for the development of a nuclear optical clock which offers a complementary technology and is e
Externí odkaz:
http://arxiv.org/abs/1905.06308
Akademický článek
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Autor:
Paschen, Timo, Förster, Michael, Krüger, Michael, Lemell, Christoph, Wachter, Georg, Libisch, Florian, Madlener, Thomas, Burgdörfer, Joachim, Hommelhoff, Peter
Publikováno v:
J. Mod. Opt. 64, 10-11, 1054-1060 (2017)
In this article we present coherent control of above-threshold photoemission from a tungsten nanotip achieving nearly perfect modulation. Depending on the pulse delay between fundamental (1560 nm) and second harmonic (780 nm) pulses of a femtosecond
Externí odkaz:
http://arxiv.org/abs/1707.03849
Autor:
Floss, Isabella, Lemell, Christoph, Wachter, Georg, Smejkal, Valerie, Burgdörfer, Joachim, Tong, Xiao-Min, Yabana, Kazuhiro, Sato, Shunsuke A.
Publikováno v:
Phys. Rev. A 97, 011401 (2018)
High-harmonic generation by a highly non-linear interaction of infrared laser fields with matter allows for the generation of attosecond pulses in the XUV spectral regime. This process, well established for atoms, has been recently extended to the co
Externí odkaz:
http://arxiv.org/abs/1705.10707
Autor:
Larimian, Seyedreza, Geng, Ji-Wei, Roither, Stefan, Kartashov, Daniil, Zhang, Li, Wang, Mu-Xue, Gong, Qihuang, Peng, Liang-You, Lemell, Christoph, Yoshida, Shuhei, Burgdörfer, Joachim, Baltuška, Andrius, Kitzler, Markus, Xie, Xinhua
Publikováno v:
Phys. Rev. A 96, 021403 (2017)
We demonstrate control over the localization of high-lying Rydberg wave packets in argon atoms with phase-locked orthogonally polarized two-color (OTC) laser fields. With a reaction microscope, we measured ionization signals of high-lying Rydberg sta
Externí odkaz:
http://arxiv.org/abs/1612.02039
Autor:
Larimian, Seyedreza, Erattupuzha, Sonia, Lemell, Christoph, Yoshida, Shuhei, Nagele, Stefan, Maurer, Raffael, Baltuška, Andrius, Burgdörfer, Joachim, Kitzler, Markus, Xie, Xinhua
Publikováno v:
Phys. Rev. A 94, 033401 (2016)
We report on the measurement of electron emission after the interaction of strong laser pulses with atoms and molecules. These electrons originate from high-lying Rydberg states with quantum numbers up to $n \lesssim 120$ formed by frustrated field i
Externí odkaz:
http://arxiv.org/abs/1604.03679