MSc Yurii Ivonyak obtained master degree in Physics from Faculty of Physics semiconductors at Yuriy Fedkovych Chernivtsi National University in 2005. Three years’ experience as engineer in laboratory of Physics of surfaces and semiconductor nanophotonics at V.E. Lashkaryov Institute of Semiconductor Physics NAS of Ukraine. Since 2008 he is a PhD student in THz Laboratory at Institute of High Pressure Physics of the Polish Academy of Sciences