A laser beam travels through optical elements, it is dispersed by a prism into three colors.

Ultrafast Soft


Meet us at CLEO Europe 2017

Some of our teammates will visit CLEO in Munich, you'll be able to meet them during their talks and poster sessions. See the list of contributions related to our group at the bottom of this page.

Tomasz Kardaś will talk on novel approach towards noncollinear pulse propagation. The video on the right shows sample simulation of broadband noncollinear sum frequency generation in BBO, the interacting pulses are travelling at a mutual angle of 26°

Paweł Wnuk will talk on Multi-harmonic generator and synthesizer. The small contributions from our group in this subject was the customization of the Hussar script used for simulations in the design phase.

Jan Szczepanek will present his poster on nonlinear polarization evolution in polarization-maintaining fibers. You can reed more on this subject in our recent paper in Optics Letters and on our page.

Piotr Kabaciński will show his poster on n2 measurement through analysis of FROG maps of the pulses subjected to nonlinear propagation through various media: fused silica, calcite and YVO4.

See bellow for details and locations of our contributions:

Experimental realization of Nonlinear Polarization Evolution mode-locking in Polarization Maintaining Fibers
J. Szczepanek1, T.M. Kardaś2, C. Radzewicz1, and Y. Stepanenko2; 1Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Warsaw, Poland; 2Institute of Physical Chemistry Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Warsaw, Poland

We demonstrate numerical simulations and the experimental realization of Nonlinear Polarization Evolution method implemented only by using Polarization Maintaining (PM) Fibers and a polarizing element. The all-PM-Fiber oscillator generating 150 fs pulses has been developed.
CD-5.3 TUE 9:00
Non-collinear pulse propagation and exotic phase-matching conditions
T.M. Kardaś1, Y. Stepanenko1, and C. Radzewicz2; 1Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland; 2Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland

A First-ever complete framework for robust non-collinear propagation including novel concepts: reference wavevector, rotated UPPE and arbitrary Fourier rotation will be presented accompanied by examples of exotically phase-matched OPCPA, Fuorescence up-conversion and FWM
CF-8.2 WED 8:45
Multi-harmonic generator and synthesizer for experiments in tailored, intense femtosecond laser Fields
P. Wnuk1,2,3, C. Burger1, W.F. Frisch2, B. Bergues1,2, T. Kardaś3, and M.F. Kling1,2; 1Max-Planck-Institut für Quantenoptik, Garching, Germany; 2Fakultät für Physik, Ludwig-Maximilians-Universität München, Garching, Germany; 3Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland

A versatile multi-harmonic generator for efficient frequency conversion of femtosecond pulses followed by a three-color interferometer permits precise three-color waveform synthesis. Its application potential is demonstrated in experiments on the ionization of argon.
Nonlinear refractive index measurement by temporal phase reconstruction
P. Kabaciński1, M. Wierzbicki1, T.M. Kardaś2, and C. Radzewicz3; 1Faculty of Physics, Warsaw University of Technology, Warsaw, Poland; 2Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland; 3Institute of Experimental Physics, University of Warsaw, Warsaw, Poland

Nonlinear refractive index has been measured in fused silica, calcite and YVO4 at 1030 nm, by fitting the phase contribution due to the propagation inside the material to the temporal intensity, both reconstructed with FROG.