Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Shaaran T"'
Autor:
Risoud, F., Lévêque, C., Labeye, M., Caillat, J., Maquet, A., Salières, P., Taïeb, R., Shaaran, T.
We study theoretically the two-center interferences occurring in high harmonic generation from diatomic molecules. By solving the time-dependent Schroedinger equation, either numerically or with the molecular strong-field approximation, we show that
Externí odkaz:
http://arxiv.org/abs/1707.03364
Autor:
Ciappina, M. F., Pérez-Hernández, J. A., Landsman, A. S., Okell, W., Zherebtsov, S., Förg, B., Schötz, J., Seiffert, J. L., Fennel, T., Shaaran, T., Zimmermann, T., Chacón, A., Guichard, R., Zaïr, A., Tisch, J. W. G., Marangos, J. P., Witting, T., Braun, A., Maier, S. A., Roso, L., Krüger, M., Hommelhoff, P., Kling, M. F., Krausz, F., Lewenstein, M.
Recently two emerging areas of research, attosecond and nanoscale physics, have started to come together. Attosecond physics deals with phenomena occurring when ultrashort laser pulses, with duration on the femto- and sub-femtosecond time scales, int
Externí odkaz:
http://arxiv.org/abs/1607.01480
It was already experimentally demonstrated that high-energy electrons can be generated using metal nanotips as active media. In addition, it has been theoretically proven that the high-energy tail of the photoemitted electrons is intrinsically linked
Externí odkaz:
http://arxiv.org/abs/1401.6041
Autor:
Ciappina, M F, Shaaran, T, Guichard, R, Pérez-Hernández, J A, Roso, L, Arnold, M, Siegel, T, Zaïr, A, Lewenstein, M
We study theoretically the photoelectron emission in noble gases using plasmonic enhanced near-fields. We demonstrate that these fields have a great potential to generate high energy electrons by direct mid-infrared laser pulses of the current femtos
Externí odkaz:
http://arxiv.org/abs/1308.2901
We perform a detailed analysis of above threshold ionization (ATI) in atoms within the strong field approximation (SFA) by considering spatially inhomogeneous monochromatic laser fields. The locally enhanced field induced by resonance plasmons is an
Externí odkaz:
http://arxiv.org/abs/1304.4123
Autor:
Shaaran, T., Ciappina, M. F., Guichard, R., Pérez-Hernández, J. A., Arnold, M., Siegel, T., Zaïr, A., Lewenstein, M.
We present theoretical investigations of high-order harmonic generation (HHG) resulting from the interaction of noble gases with localized surface plasmons. These plasmonic fields are produced when a metal nanoparticle is subject to a few-cycle laser
Externí odkaz:
http://arxiv.org/abs/1302.2524
We use three dimensional time-dependent Schr\"odinger equation (3D--TDSE) to calculate angular electron momentum distributions and photoelectron spectra of atoms driven by spatially inhomogeneous fields. An example for such inhomogeneous fields is th
Externí odkaz:
http://arxiv.org/abs/1301.4906
We present theoretical studies of high-order harmonic generation (HHG) in rare gases driven by plasmonic field enhancement. This kind of fields appears when plasmonic nanostructures are illuminated by an intense few-cycle laser and have a particular
Externí odkaz:
http://arxiv.org/abs/1210.5610
In strong field laser physics it is a common practice to use the high-order harmonic cutoff to estimate the laser intensity of the pulse that generates the harmonic radiation. Based on the semiclassical arguments it is possible to find a direct relat
Externí odkaz:
http://arxiv.org/abs/1208.2173
Autor:
Ciappina, M. F., Pérez-Hernández, J. A., Shaaran, T., Biegert, J., Quidant, R., Lewenstein, M.
We present theoretical studies of above threshold ionization (ATI) produced by spatially inhomogeneous fields. This kind of field appears as a result of the illumination of plasmonic nanostructures and metal nanoparticles with a short laser pulse. We
Externí odkaz:
http://arxiv.org/abs/1208.1601