activity
20072026
most citedUltrafast spatio-temporal dynamics of terahertz generation by ionizing two-color femtosecond pulses in gases

199 citations · 1.1k across the 37 of their papers we have counts for

collaborators

42 papers

physics.optics2026

A Theory of Nested Cascading in Directed Logic

Ihar Babushkin, Oliver Melchert, Ayhan Demircan +1

In directed logic (DL), electronically controlled optical elements serve as photonic gates. Such electro-optical elements are of mixed nature: they have two inputs--electronic and…

physics.optics2026

Isotopic variations and Zeeman-like splitting in the spectra of nonlinear photonic meta-atoms

S. Zhang, I. Babushkin, U. Morgner +2

We study photonic meta-atoms, a unique class of composite solitary wave, supported in nonlinear waveguides. We establish an analogy to one-dimensional soft-core atoms, allowing to…

cond-mat.mes-hall2024

Photocurrent-induced harmonics in nanostructures

Ihar Babushkin, Anton Husakou, Liping Shi +3

Photocurrent-induced harmonics appear in gases and solids due to tunnel ionization of electrons in strong fields and subsequent acceleration. In contrast to three-step harmonic emi…

physics.optics2024

Universal properties of locally generated terahertz waveforms from polarization-controlled two- and multi-color ionizing fields

H. Alirezaee, S. Skupin, V. Vaicaitis +4

The polarization states of terahertz (THz) radiation generated in a photo-ionized gas driven by strong two- or multi-frequency fields with locally controlled polarization are studi…

quant-ph2024

Generation of massively entangled bright states of light during harmonic generation in resonant media

Sili Yi, Nikolai D. Klimkin, Graham Gardiner Brown +4

At the fundamental level, full description of light-matter interaction requires quantum treatment of both matter and light. However, for standard light sources generating intense l…

physics.optics2023★ 14 cited

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…