MBI Staff Member – Personal info

Research

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.

Curriculum vitae

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

MBI Publications

  1. Flipping the sign of refractive index changes in ultrafast and temporally shaped laser-irradiated borosilicate crown optical glass at high repetition rates

    A. Mermillod-Blondin, I. M. Burakov, Yu. P. Meshcheryakov, N. M. Bulgakova, E. Audouard, A. Rosenfeld, A. Husakou, I. V. Hertel, R. Stoian

    Physical Review B 77 (2008) 104205/1-8
  2. Superfocusing of optical beams below the diffraction limit by media with negative refraction

    A. Husakou, J. Herrmann

    physica status solidi a 204 (2007) 3862-3877
  3. Steplike transmission of light through a metal-dielectric multilayer structure due to an intensity-dependent sign of the effective dielectric constant

    A. Husakou, J. Herrmann

    Physical Review Letters 99 (2007) 127402/1-4
  4. Frequency-selective self-trapping and supercontinuum generation in arrays of coupled nonlinear waveguides

    I. Babushkin, A. Husakou, J. Herrmann, Y. S. Kivshar

    Optics Express 15 (2007) 11978-11983
  5. High-power fifth-harmonic generation of femtosecond pulses in the vacuum ultraviolet using a Ti:sapphire laser

    P. Tzankov, O. Steinkellner, J. Zheng, M. Mero, W. Freyer, A. Husakou, I. Babushkin, J. Herrmann, F. Noack

    Optics Express 15 (2007) 6389-6395
  6. Spatial distribution of refractive index variations induced in bulk fused silica by single ultrashort and short laser pulses

    I. M. Burakov, N. M. Bulgakova, R. Stoian, A. Mermillod-Blondin, E. Audouard, A. Rosenfeld, A. Husakou, I. V. Hertel

    Journal of Applied Physics 101 (2007) 043506/1-7
  7. Coherence of subsequent supercontinuum pulses generated in tapered fibers in the femtosecond regime

    D. Türke, S. Pricking, A. Husakou, J. Teipel, J. Herrmann, H. Giessen

    Optics Express 15 (2007) 2732-2741
  8. Supercontinuum generation in planar rib waveguides enabled by anomalous dispersion

    O. Fedotova, A. Husakou, J. Herrmann

    Optics Express 14 (2006) 1512-1517
  9. Focusing of scanning light beams below the diffraction limit without near-field spatial control using a saturable absorber and a negative-refraction material

    A. Husakou, J. Herrmann

    Physical Review Letters 96 (2006) 013902/1-4
  10. Dispersion modification and supercontinuum formation in planar rib waveguide structures

    O. Fedotova, A. Husakou, J. Herrmann, O. Khazarov

    SPIE Proceedings Series 6180 (2006) 61800W-61807W