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-order harmonic generation employing field enhancement by metallic fractal rough surfaces Optics Express 19 (2011) 20910-20915
- Theory of plasmon-enhancement of high-order harmonic generation in the vicinity of metal nanostructures in noble gases Physical Review A 83 (2011) 04443839/1-5
- Polarization gating and circularly-polarized high harmonic generation using plasmonic enhancement in metal nanostructures Opt. Express 19 (2011) 25346-25354
- Carrier-envelope phase stabilization with sub-10 as residual timing jitter Optics Letters 36 (2011) 4146-4148
- Tailoring terahertz radiation by controlling tunnel photoionization events in gases New Journal of Physics 13 (2011) 123029/1-16
- High-power soliton-induced supercontinuum generation and tunable sub-10fs VUV pulses from kagome lattice hollow core photonic crystal fibers Optics Express 18 (2010) 5367-5374
- Linear and nonlinear optical characteristics of composites containing metal nanoparticles with different sizes and shapes Optics Express 18 (2010) 7488-7496
- Supercontinuum generation in liquid-filled photonic crystal fiber with slow nonlinear response Journal of the Optical Society of America B-Optical Physics 27 (2010) 1763-1768
- Soliton delivery of few-cycle optical gigawatt pulses in kagome-lattice hollow-core photonic crystal fibers Physical Review A 82 (2010) 025801/1-3
- Saturable absorption in composites doped with metal nanoparticles Optics Express 18 (2010) 21918-21925