Project Member 1.1 "Fundamentals of Extreme Photonics"
Project Member 1.2 "Ultrafast Laser Physics and Nonlinear Optics"
1. Nonlinear optics in fibers and waveguides
This area of research includes ultrafast nonlinear processes such as supercontinuum generation, pulse guiding, generation of new frequencies, strong-field fiber optics including plasma generation, pulse compression etc. I develop and implement numerical methods and implement them for studies of various physical processes, ranging from discrete spatial diffraction through Kerr and Raman effects to photoionization.
Mechanism of line narrowing in continuous-wave-pumped fiber filled with Raman-active gas. Forward- and backward- propagating Stokes waves create a standing wave and a periodic lattice of population difference, which results in an array of deep subwavelength potential traps.
2. Linear and nonlinear nanooptics
Various nanometer-scaled systems are studied numerically, including metal-nanoparticle composites, photonic crystals, nanostructures, and rough surfaces. The considered optical processes include high harmonic generation, enhancement of nonlinearity, bistable optical behaviour, and focusing below the diffraction limit.
Bistable optical transmission in a planar nonlinear metal-dielectric array. A metal-like state B reflects incoming light; a dielectric-like state transmits light and has positive dielectric function due to nonlinearity.
3. Strong-field optics, high harmonic generation and material modification
Various phenomena occuring under the influence of photoionization are considered by the numerical methods are treated by home-made numerical algorithms developed to adress the corresponding problem. The investigated systems include high harmonic generation in gases, formation of overcritical plasma caused by light, nanoparticle-enhanced HHG and so on.
Dynamics of high-intensity, tightly focused light propagating through fused silica. The formation of overctirital plasma in the focal region introduces backreflection and strong perturbation to the field.
11/2002 - present: Scientist, Max Born Institute
11/2002: PhD Thesis, FU Berlin, "Nonlinear phenomena of ultrabroadband radiation in photonic crystal fibers and hollow waveguides"
09/1999 - 11/2002: PhD student, Max Born Institute/FU Berlin, supervisor: Dr. J. Herrmann
Diploma work, "Linear and nonlinear properties of carbon nanotubes", Belarus State University, supervisor: G. Y. Sleyan
09/1994 - 07/1999: University diploma, physics, Belarus state university
- High harmonic generation assisted by metal nanostructures and nanoparticles Progress in Nonlinear Nano-Optics Part VII Springer International Publishing (2015) 251-268
- Quasi-phase-matched high-harmonic generation by modulation of metal nanoparticle density in a noble gas Nonlinear Phenomena in Complex Systems 18 (2015) 105-116
- Control of THz radiation from gaseous plasmas produced by intense optical fields Nonlinear Phenomena in Complex Systems 18 (2015) 157-163
- Multi-meter fiber-delivery and pulse self-compression of milli-joule femtosecond laser and fiber-aided laser-micromachining Optics Express 22 (2014) 10735-10746
- Quasi-phase-matched high-harmonic generation in composites of metal nanoparticles and a noble gas Physical Review A 90 (2014) 023831/1-9
- All-optical delay of images by backward four-wave mixing in metal-nanoparticle composites Physical Review A 87 (2013) 045805/1-4
- High-harmonic and single attosecond pulse generation using plasmonic field enhancement in ordered arrays of gold nanoparticles with chirped laser pulses Optics Express 21 (2013) 2195-2205
- Combined action of the bound-electron nonlinearity and the tunnel-ionization current in low-order harmonic generation in noble gases Optics Express 21 (2013) 25582-25591
- Theory of plasmonic femtosecond pulse generation by mode-locking of long-range surface plasmon polariton lasers Optics Express 20 (2012) 462-473
- Slow light in dielectric composite materials of metal nanoparticles Optics Express 20 (2012) 25790-25797