Zobrazeno 1 - 10
of 548
pro vyhledávání: '"Schoeffler, M."'
Autor:
Weller, M., Kastirke, G., Rist, J., Goy, C., Khan, A., Kircher, M., Rauch, C., Schmidt, L. Ph. H., Sisourat, N., Schöffler, M. S., Dörner, R., Trinter, F., Jahnke, T.
Electronically excited atoms or molecules may deexcite by emission of a secondary electron through an Auger-Meitner decay. This deexcitation process is typically considered to be exponential in time. This is strictly speaking, however, only true for
Externí odkaz:
http://arxiv.org/abs/2411.14620
Autor:
Melzer, N., Kircher, M., Pier, A., Kaiser, L., Kruse, J., Anders, N., Stindl, J., Sommerlad, L., McGinnis, D., Schmidt, M., Nowak, L., Kügler, A., Dwojak, I., Drnec, J., Trinter, F., Schöffler, M. S., Schmidt, L. Ph., Novikovskiy, N. M., Demekhin, Ph. V., Jahnke, T., Dörner, R.
Publikováno v:
Physical Review Letters 133 (2024) 183002
We report a fully differential study of ionization of the Ne L-shell by Compton scattering of 20 keV photons. We find two physical mechanisms which modify the Compton-electron emission. Firstly, we observe scattering of the Compton electrons at their
Externí odkaz:
http://arxiv.org/abs/2411.09442
Autor:
Hofmann, M., Trabert, D., Geyer, A., Anders, N., Kruse, J., Rist, J., Schmidt, L. Ph. H., Jahnke, T., Kunitski, M., Schöffler, M. S., Eckart, S., Dörner, R.
We report on strong field ionization of S- and R-propylene oxide in circularly polarized two-color laser fields. We find that the relative helicity of the two single color laser fields affects the photoelectron circular dichroism (PECD). Further, we
Externí odkaz:
http://arxiv.org/abs/2402.03215
Autor:
Trabert, D., Geyer, A., Anders, N., Hofmann, M., Schöffler, M. S., Schmidt, L. Ph. H., Jahnke, T., Kunitski, M., Dörner, R., Eckart, S.
We study strong field ionization of molecular hydrogen in highly intense co-rotating two-color (CoRTC) laser fields. The measured electron momentum distributions show alternating half-rings (AHR) that are characteristic for sub-cycle interference. We
Externí odkaz:
http://arxiv.org/abs/2307.08573
Autor:
Trabert, D., Anders, N., Geyer, A., Hofmann, M., Schöffler, M. S., Schmidt, L. Ph. H., Jahnke, T., Kunitski, M., Dörner, R., Eckart, S.
Publikováno v:
Phys. Rev. Research 5 (2023) 0231189
We present experimental data on the strong-field ionization of the argon dimer in a co-rotating two-color (CoRTC) laser field. We observe a sub-cycle interference pattern in the photoelectron momentum distribution and infer the Wigner time delay usin
Externí odkaz:
http://arxiv.org/abs/2302.00481
Autor:
Geyer, A., Trabert, D., Hofmann, M., Anders, N., Schöffler, M. S., Schmidt, L. Ph. H., Jahnke, T., Kunitski, M., Dörner, R., Eckart, S.
Publikováno v:
Phys. Rev. Research 5 (2023) 033094
We present experimental data on the strong field tunnel ionization of argon in a counter-rotating two-color (CRTC) laser field. We find that the initial momentum component along the tunneling direction changes sign comparing the rising and the fallin
Externí odkaz:
http://arxiv.org/abs/2211.01791
Autor:
Kircher, M., Trinter, F., Grundmann, S., Kastirke, G., Weller, M., Vela-Perez, I., Khan, A., Janke, C., Waitz, M., Zeller, S., Mletzko, T., Kirchner, D., Honkimäki, V., Houamer, S., Chuluunbaatar, O., Popov, Yu. V., Volobuev, I. P., Schöffler, M. S., Schmidt, L. Ph. H., Jahnke, T., Dörner, R.
Publikováno v:
Phys. Rev. Lett. 128, 053001 (2022)
We present the momentum distributions of the nucleus and of the electrons from double ionization of the helium atom by Compton scattering of photons with $h\nu=40$ keV. We find that the doubly charged ion momentum distribution is very close to the Co
Externí odkaz:
http://arxiv.org/abs/2110.09831
Autor:
Nalin, G., Fehre, K., Trinter, F., Novikovskiy, N. M., Anders, N., Trabert, D., Grundmann, S., Kircher, M., Khan, A., Tomar, R., Hofmann, M., Waitz, M., Vela-Perez, I., Fukuzawa, H., Ueda, K., Williams, J., Kargin, D., Maurer, M., Küstner-Wetekam, C., Marder, L., Viehmann, J., Knie, A., Jahnke, T., Ilchen, M., Dörner, R., Pietschnig, R., Demekhin, Ph. V., Schöffler, M. S.
Publikováno v:
Phys. Chem. Chem. Phys. 23, 17248 (2021)
The photoelectron circular dichroism (PECD) of the O 1s-photoelectrons of trifluoromethyloxirane(TFMOx) is studied experimentally and theoretically for different photoelectron kinetic energies. The experiments were performed employing circularly pola
Externí odkaz:
http://arxiv.org/abs/2106.08071
Autor:
Kircher, M., Rist, J., Trinter, F., Grundmann, S., Waitz, M., Melzer, N., Vela-Perez, I., Mletzko, T., Pier, A., Strenger, N., Siebert, J., Janssen, R., Honkimäki, V., Drnec, J., Demekhin, Ph. V., Schmidt, L. Ph. H., Schöffler, M. S., Jahnke, T., Dörner, R.
Publikováno v:
Phys. Rev. Lett. 123, 193001 (2019)
We investigate K-shell ionization of N$_2$ at 40 keV photon energy. Using a COLTRIMS reaction microscope we determine the vector momenta of the photoelectron, the Auger electron and both N$^+$ fragments. These fully differential data show that the di
Externí odkaz:
http://arxiv.org/abs/2105.02028
Autor:
Fehre, K., Pitzer, M., Trinter, F., Berger, R., Schmidt-Böcking, A. Schießer H., Dörner, R., Schöffler, M. S.
Publikováno v:
Rev. Sci. Instrum. 92, 023205 (2021)
Many samples of current interest in molecular physics and physical chemistry exist in the liquid phase and are vaporized for the use in gas cells, diffuse gas targets or molecular gas jets. For some of these techniques the large sample consumption is
Externí odkaz:
http://arxiv.org/abs/2105.02006