Auflistung nach Autor/in "9fc8f8ab-240c-488d-886e-e618d6a960ef"

Auflistung nach Autor/in "9fc8f8ab-240c-488d-886e-e618d6a960ef"

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  • Accurate propagation of ultrashort pulses in nonlinear waveguides using propagation models for the analytic signal 
    Melchert, O.; Morgner, Uwe; Roth, B.; Babushkin, I.; Demircan, A. (Bellingham, WA : SPIE - International Society for Optical Engineering, 2018)
    We present a numerical approach for the accurate simulation of the complex propagation dynamics of ultrashort optical pulses in nonlinear waveguides, especially valid for few-cycle pulses. The propagation models are derived ...
  • Crossover from two-frequency pulse compounds to escaping solitons 
    Melchert, O.; Willms, S.; Morgner, U.; Babushkin, I.; Demircan, A. ([London] : Macmillan Publishers Limited, part of Springer Nature, 2021)
    The nonlinear interaction of copropagating optical solitons enables a large variety of intriguing bound-states of light. We here investigate the interaction dynamics of two initially superimposed fundamental solitons at ...
  • Generation of sub cycle terahertz pulses via coherent control of nonlinear medium by femtosecond pulses 
    Arkhipov, R.M.; Arkhipov, M.V.; Pakhomov, A.V.; Babushkin, I.; Demircan, A.; Morgner, Uwe; Rosanov, N.N. (Bristol : IOP Publishing Ltd., 2020)
    In this paper, we revise our recent advances in study of high-efficient methods of sub cycle THz pulse generation and control of their wave shape. These methods are based on coherent control of low frequency oscillations ...
  • (Invited) Two-color soliton meta-atoms and molecules 
    Melchert, O.; Willms, S.; Babushkin, I.; Morgner, U.; Demircan, A. (München : Elsevier, 2023)
    We present a detailed overview of the physics of two-color soliton molecules in nonlinear waveguides, i.e. bound states of localized optical pulses which are held together due to an incoherent interaction mechanism. The ...
  • OptFROG — Analytic signal spectrograms with optimized time–frequency resolution 
    Melchert, O.; Roth, B.; Morgner, Uwe; Demircan, A. (Amsterdam : Elsevier B.V., 2019)
    A Python package for the calculation of spectrograms with optimized time and frequency resolution for application in the analysis of numerical simulations on ultrashort pulse propagation is presented. Gabor’s uncertainty ...
  • Population density gratings creation and control in resonant medium by half-cycle terahertz pulses 
    Arkhipov, R.M.; Arkhipov, M.V.; Pakhomov, A.V.; Babushkin, I.; Demircan, A.; Morgner, U.; Rosanov, N.N. (Bristol : IOP Publ., 2021)
    Electromagnetically induced gratings (EIG) are created by standing-wave laser field in resonant media. Such gratings can be also created by few-cycle electromagnetic pulses counter-propagating in the medium via coherent ...
  • Population density gratings induced by few-cycle optical pulses in a resonant medium 
    Arkhipov, R.M.; Pakhomov, A.V.; Arkhipov, M.V.; Babushkin, I.; Demircan, A.; Morgner, Uwe; Rosanov, N.N. (London : Nature Publishing Group, 2017)
    Creation, erasing and ultrafast control of population density gratings using few-cycle optical pulses coherently interacting with resonant medium is discussed. In contrast to the commonly used schemes, here the pulses do ...
  • Resonant Kushi-comb-like multi-frequency radiation of oscillating two-color soliton molecules 
    Melchert, O.; Willms, S.; Oreshnikov, I.; Yulin, A.; Morgner, U.; Babushkin, I.; Demircan, A. ([Bad Honnef] : Dt. Physikalische Ges., 2023)
    Nonlinear waveguides with two distinct domains of anomalous dispersion can support the formation of molecule-like two-color pulse compounds. They consist of two tightly bound subpulses with frequency loci separated by a ...
  • Soliton compression and supercontinuum spectra in nonlinear diamond photonics 
    Melchert, O.; Kinnewig, S.; Dencker, F.; Perevoznik, D.; Willms, S.; Babushkin, I.; Wurz, M.; Kues, M.; Beuchler, S.; Wick, T.; Morgner, U.; Demircan, A. (Amsterdam [u.a.] : Elsevier Science, 2023)
    We numerically explore synthetic crystal diamond for realizing novel light sources in ranges which are up to now difficult to achieve with other materials, such as sub-10-fs pulse durations and challenging spectral ranges. ...
  • Subwavelength population density gratings in resonant medium created by few-cycle pulses 
    Arkhipov, R.M.; Arkhipov, M.V.; Pakhomov, A.V.; Babushkin, I.; Demircan, A.; Morgner, Uwe; Rosanov, N.N. (Bristol : Institute of Physics Publishing, 2017)
    We consider theoretically recently proposed a new possibility of creation, erasing and ultrafast control of population density grating. Such grating can be created in resonant medium when ultrashort pulses with duration ...
  • Symmetry Breaking and Strong Persistent Plasma Currents via Resonant Destabilization of Atoms 
    Brée, C.; Hofmann, M.; Demircan, A.; Morgner, Uwe; Kosareva, O.; Savel'Ev, A.; Husakou, A.; Ivanov, M.; Babushkin, I. (American Physical Society, 2017)
    The ionization rate of an atom in a strong optical field can be resonantly enhanced by the presence of long-living atomic levels (so-called Freeman resonances). This process is most prominent in the multiphoton ionization ...
  • Unusual terahertz waveforms from a resonant medium controlled by diffractive optical elements 
    Pakhomov, A.V.; Arkhipov, R.M.; Arkhipov, M.V.; Demircan, A.; Morgner, Uwe; Rosanov, N.N.; Babushkin, Ihar (Berlin : Springer Nature, 2019)
    Up to now, full tunability of waveforms was possible only in electronics, up to radio-frequencies. Here we propose a new concept of producing few-cycle terahertz (THz) pulses with widely tunable waveforms. It is based on ...