Weidong Zhou
Professor of Electrical Engineering
Nanophotonics Lab, University of Texas at Arlington
Monday, June 15, 2015, 10AM
Place: 科学楼902
Abstract:
Fano resonance, known from atomic physics, has been employed for a wide variety of nanophotonic structures, such as quantum dots, photonic crystal, plasmonics, and metamaterials, and so on. With modal dispersion engineering, Fano filters and reflectors can all be realized in single layer dielectric photonic crystal structures. Based on Fano resonance principle in 2D air hole photonic crystal slabs, combined with crystalline semiconductor nanomembrane transfer printing techniques, we have demonstrated a range of ultra-compact high performacne photonic and electronic devices on silicon and on flexible substrates.
In this talk, I will review major progresses made over the last few years on the emerging and exciting field of nanophotonics and flexible optoelectronics, based on Fano resonance principles in photonic crystals and transfer printed semiconductor nanomembranes. Major breakthroughs to be discussed include membrane lasers on Si for integrated Si photonics (Nature Photon. 2012), Fano resonance high Q optical filters, total absorption of monolayer graphene based on critically coupled cavities, and flexible RF electronics (Nature Commun. 2015), etc. The convergence of nanomembranes and Fano resonance photonic crystals and metamaterials will also be discussed, with potential applications in the areas of 3D Si CMOS photonics, flexible, bio-inspired/integrated photonic/electronic systems, and multi-spectral multi-color infrared imaging and sensing systems, etc.
Bio: Professor Weidong Zhou obtained his BS and ME degrees from Tsinghua University, Beijing, China. He obtained his PhD degree in Electrical Engineering from University of Michigan, Ann Arbor, majoring in optoelectronics and solid state electronics. Before joining University of Texas at Arlington (UTA), he worked as a lead engineer at CIENA Corporation for three years, working on active photonic devices for optical communication systems. He is currently a Professor of Electrical Engineering at UTA. Dr. Zhou has authored and co-authored over 250 journal publications and conference presentations, including over 70 invited conference talks and seminars. His major recent awards include UTA Outstanding Research Achievement Award (2015) and UTA CoE Excellence in Research Award (2013). Dr. Zhou is a Fellow of SPIE, a senior member of IEEE, and a member of OSA. https://www.uta.edu/zhoulab/