ACADEMICIAN EMIL DJAKOV INSTITUTE OF ELECTRONICS
BULGARIAN ACADEMY OF SCIENCES

72, Tzarigradsko chaussee blvd, 1784-Sofia, Bulgaria


PERSONAL PAGE of Prof. L. KOVACHEV, Dr.Sc.

 
   

    

    

S.Tinchev

    

LYUBOMIR MILCHEV KOVACHEV

Professor, Dr.Sc.

Head of the Laboratory
"Nonlinear and Fiber Optics"

    

Institute of Electronics, Bulgarian Academy of Sciences

boul. Tzarigradsko Chaussee 72, Sofia 1784, Bulgaria

Phone: +3592-9795915

e-mail:

Education & Degrees:
1981: Sofia University, Dipl. Physics
1991: Ph. D in Physics from Institute of General Physics, Moscow

Employment history:
  • Institute of Electronics, Bulgarian Academy of Sciences, 1985-1988, researcher
  • Institute of General Physics, Moscow, 1988-1991, Ph.D student
  • Institute of Electronics, Bulgarian Academy of Sciences, since 1985 - to present

Awards:
  • " Award "Academician Emil Djakov" for the Best Scientific Publication of the years 2004 and 2018 in Physical and Quantum Electronics

Publications:
123 publications in journals and proceedings of International Conferences.

Membership:
  • Member of the Optical Society of America
  • Member of Bulgarian Physical Society
  • Member of SPIE

Special expertise:
  • Nonlinear optics, nonlinear field theory
  • Ion-free filamentation
  • Coherent THz generation by two color scheme
  • Optical vortices with integer and half-integer spin
  • Non-paraxial theory of diffraction
  • Numerical methods for solving 1D+1, 2D+1 and 3D+1 System of Nonlinear Schrödinger equations and non-paraxial evolution equations

Some important achievements:
  • Parametric solitons in χ(3) media
  • Avalanche parametric conversion from IR to visible region
  • Longitudinal ponder-motor force
  • Analytical vortex solutions of the vector 3D+1 Nonlinear Schrödinger equation and a system of nonlinear Maxwell-Dirac equations
  • Developing non-paraxial theory of propagation for femtosecond and single-cycle pulses
  • New mechanism for THz generation with fs pulses
  • 3D+1 optical shock-wave solutions of the nonlinear vacuum wave equation.

    

    

    

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