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January 31 @ 12:00 PM - 2:00 PM -
Aluminum Oxide as a Self-Organizing Template for Heterogeneous Photonic Crystals
In this talk, heterogeneous photonic crystals are described that are made of group II-oxides, sulfides, and selenides electrochemically deposited in the template of a selforganizing porous aluminum oxide. The self-organization approach to nano-structured materials and templates looks like a much simpler and, hence cheaper technological alternative to lithography-based ones. The self-organization here might be due an ion bombardment, arcdischarge evaporation, laser ablation, etc. The main disadvantage of this approach is the farorder produced that might as low as a few spatial periods. Easy parameter adjustment pertinent to electrochemical procedures enables us to produce arrays of porous materials with
substantially higher level of the far-order. We make use of the method of the aluminum anodizing in order to produce nano-structures in the form of the ordered arrays (templates) of hexagons that have a nanopore in the center. In the next step, the precursor of an AII metal is introduced into these pores by means of vacuum or electrochemical deposition technique. Subsequent oxidation, sulfidization, or selenidization synthesizes photonic crystals with controllable morphology and optical properties.
Prof Igor Melnikov is at present a Head of Photonics Lab of the National Research University of Electronic Technology in Zelenograd, Moscow, Russia and also serves as a Chief Photonics Officer in High Q Laboratories, Inc., Hamilton, Ontario, Canada, the founder of which he was, too. He has 25-years experience in many aspects of photonics and has pioneered a number of developments in chemical lasers, optical memory devices with random access, fiber optics, multiple-wavelength lasers, few-cycle optical pulses, metallo-dielectric layered nano-magnetics, and resonance photonic crystals. The resonance photonic crystal research he has undertaken as a Visiting Professor of the University of Toronto, has been recognized by a whole series of invited and plenary talks at meetings and seminars across the North America and Europe. Together with Igor’s work on high repetition rate diode-pumped fiber lasers, this led to a great deal of fundamental research and cutting-edge innovations in the photonics industry. He has been an author/co-author of over 100 papers, participated in prestigious meetings on Quantum Electronics and Photonics around the world, and has given seminars throughout the Western Europe and North America. His contribution in the field of photonics has been recognized by several awards in Canada, China, France, Germany, Mexico, UK, and USA.
January 15 @ 12:00 PM - 1:00 PM Potter, Fu room 234
February 12 @ 12:00 PM - 1:00 PM Potter, Fu room 234
March 12 @ 12:00 PM - 1:00 PM Potter, Fu room 234
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