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Interferometry and holography are two domains that are based on observation and recording of interference fringes from two light beams. While the aim of the first technique is to reveal and map the phase difference of two wave fronts, the main task of the second technique is to reconstruct one of the two recording waves via diffraction of the other wave from the recorded fringe pattern (hologram) . To create fringes, mutually coherent waves from the same laser are commonly used. It is shown here that fringes can be observed and holograms can be recorded with ultrashort, subpicosecond pulses even of different colour, generated in our experiment with two parametric amplifiers seeded, both by the same mode-locked Ti-sapphire laser. The appearance of permanent and transient gratings is confirmed by recording of an image-bearing hologram, by observation of two-beam coupling gain in a pump-probe experiment and by frequency conversion in Raman-Nath self-diffraction from a moving grating.

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Academician of NAS of Ukraine Anton G. Naumovets was awarded the Medal of UNESCO 18 Oct | 2016 Academician of NAS of Ukraine Anton G. Naumovets was awarded the Medal of UNESCO "For contribution to the development of nanosciences and nanotechnologies"

July 15, 2016 First Vice President of NAS of Ukraine, Head of the Physical-Technical and Mathematical Sciences Section of Ukraine, Сhief Researcher of Institute of physics of NAS of Ukraine, Academician Anton G. Naumovets was awarded by the Medal of UNESCO "For contribution to the development of nanosciences and nanotechnologies".

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 V International conference 31 Aug | 2016 V International conference "Nanotechnology and nanomatherials" (NANO-2017)

We want to invite you to take part in the the V International conference "Nanotechnology and nanomaterials" (NANO-2017) that will be held in Chernivtsi from August 23 to 26, 2017

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 | IOP 8 Jul | 2016

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