EventProf. Sergey V. Gaponenko

Nanoplasmonics: Enhancement of light-matter interaction for sensing, lighting and Li-Fi applications

Nanoplasmonics represents one of the most extensive research field in optics on the nanoscale and has emerging applications in sensors, light-emitting and photovoltaic devices. It offers a number of effects and can be combined with existing technologies by a number of approaches, the colloidal techniques representing the easiest implementation in the existing and emerging photonic components and devices. In this talk, plasmonic effects will be discussed in terms of the three major physical phenomena (incident field enhancement, photon density of states enhancement, non-radiative decay enhancement) in the context of various photonic procesess and devices including Raman scattering, photo- and electroluminescence, photovoltaics, photochemistry and photodetectors. A number of instructive examples are given for metal nanospheres and nanorods showing how size, shape, core-shell design and ambient environment can be used to get maximal use of the favorable factors while keeping unfavorable ones at the reasonably safe level. A number of applications of plasmonically enhanced secondary radiation are emphasized such as ultrasensitive molecular analysis including medical studies and cultural heritage research, improvement of electroluminescent devices including LEDs and OLEDs with possible applications in lighting and emerging Li-Fi communication technology.

Nanoplasmonics -Bilkent 2018

About The Speaker

Prof. Sergey V. Gaponenko graduated from Belarusian State University in 1980. He obtained his Ph.D. degree in 1984 (mechanism of absorption saturation in ZnSe monocrystals) and his Doctor of Science (habilitation) degree in 1996 (spectroscopic properties of semiconductor nanocrystals and organic molecules in dielectric matrices) from the same university, and became a Professor in 2009. He is a full member of the National Academy of Sciences of Belarus (since 2014). He is the Head of the Laboratory of Nanooptics at the B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus (since 2002), Chairman of the Association “Lasers and Optics” (since 2007), Chairman of the Scientific Council of the Belarusian Republican Foundation for Fundamental Research (since 2014) and Chairman of the Council awarding PhD and Habilitation degrees in optoelectronics (since 2014). He (co-)authored 15 books and gave more than 60 invited talks at seminars and international conferences. He (co-)authored more than 160 papers in international peer-reviewed journals and received more than 4000 citations.