Silicon Nanophotonics

Leonid Khriachtchev graduated from Leningrad State University, Russia, in 1981. He completed his PhD study in Quantum Electronics in 1986 and became a Senior Scientist and a group leader in 1988 at the Institute of Physics of the same university. That time, his research mainly dealt with resonant light pressure and optical pumping of the ground state of atoms in the gas phase. In 1994, he joined the University of Helsinki, Finland, and he is currently with the Laboratory of Physical Chemistry of this university. His scientific interests include experimental optical and laser spectroscopy of matrix-isolated species and nanoscale materials. He has contributed to construction of new chemical bonds, including the first argon chemical compound, HArF, and light-induced conformational changes at low temperatures. Optical and structural studies of silicon nanocrystals have been another important part of this research activity. He is the editor of the book ""Silicon Nanophotonics: Basic Principles, Present Status, and Perspectives"" (Pan Stanford Publishing, 2008). He has authored over 180 refereed articles.

Silicon Nanocrystals Enabling Silicon Photonics. Theoretical Studies of Absorption, Emission and Gain in Silicon Nanostructures. Computational Studies of Free-Standing Silicon Nanoclusters. Optical Gain in Silicon Nanocrystal Waveguides Measured by the Variable Stripe Length Technique. Si-nc Based Light Emitters and Er Doping for Gain Materials. Silicon Nanocrystals: Structural and Optical Properties and Device Applications. Optical Spectroscopy of Individual Silicon Nanocrystals. Silicon Nanocrystal Memories,. Engineering the Optical Response of Nanostructured Silicon. Guiding and Amplification of Light Due to Silicon Nanocrystals Embedded in Waveguides. Silicon Nanocrystals in Silica: Optical Properties and Laser-Induced Thermal Effects. Light Emission from Silicon-Rich Nitride Nanostructures. Energy Efficiency in Silicon Photonics. Light Emitting Defects in Ion-Irradiated Alpha-Quartz and Silicon Nanoclusters. Auger Processes in Silicon Nanocrystals Assemblies. Biological Applications of Silicon Nanostructures.