34 citations · 148 across the 12 of their papers we have counts for
9 papers · 1 filter
Two-color soliton meta-atoms and molecules
O. Melchert, S. Willms, I. Babushkin +2
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 a…
Soliton compression and supercontinuum spectra in nonlinear diamond photonics
O. Melchert, S. Kinnewig, F. Dencker +9
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…
High order Brunel harmonics and supercontinuum formed by a weak optical pump in presence of a strong terahertz field
Ihar Babushkin, Ayhan Demircan, Uwe Morgner +1
Brunel harmonics appear in the optical response of an atom in process of laser-induced ionization, when the electron leaves the atom and is accelerated in the strong optical field.…
A python package for ultrashort optical pulse propagation in terms of forward models for the analytic signal
O. Melchert, A. Demircan
We present a flexible, open-source Python package for the accurate simulation of the -propagation dynamics of ultrashort optical pulses in nonlinear waveguides, especially valid…
Spontaneous emission noise in mode-locked lasers and frequency combs
Ruoyu Liao, Chao Mei, Youjian Song +2
Amplified spontaneous emission (ASE) causes fluctuations of pulse energy, of the optical phase and of the timing of the pulse intensity envelope in a mode-locked laser or frequency…
Coherently controlled generation of single-cycle terahertz pulses from thin layer of nonlinear medium with low-frequency resonances
R. M. Arkhipov, A. V. Pakhomov, M. V. Arkhipov +4
We propose a novel scheme to generate single-cycle terahertz (THz) pulses via reflection of an optical femtosecond pulse train from a thin layer of nonlinear resonant medium. Our m…
All-optical attoclock for imaging tunnelling wavepackets
I. Babushkin, A. J. Galan, J. R. C. Andrade +18
Recent experiments on measuring time-delays during tunnelling of cold atoms through an optically created potential barrier are reinvigorating the controversial debate regarding pos…
Soliton acceleration by dispersive radiation: a contribution to rogue waves?
A. Demircan, Sh. Amiranashvili, C. Brée +3
Rogue waves are solitary waves with extreme amplitudes, which appear to be a ubiquitous phenomenon in nonlinear wave propagation, with the requirement for a nonlinearity being thei…
Comment on arXiv:1105.6334 "Optical nonlinearity in Ar and N near the ionization threshold"
Günter Steinmeyer, Ayhan Demircan, Carsten Brée
In a recent publication [Phys. Rev. Lett. 107, 103901 (2011)], Wahlstrand et al. reported to observe no indications for the appearance of the higher-order Kerr effect in a paramete…