Aleksandr B.Vankov, Senior Researcher in the Institute of Solid State Physics RAS, Chernogolovka, Russia. Alma mater: Moscow institute of physics and technology The field of interests: Optical spectroscopy of semiconductors, two-dimensional electron systems, collective excitations. Applied Raman spectroscopy of organic and inorganic substances, surface enhanced raman spectroscopy. Engineering of portable Raman analyzers, Raman microscopes.