摘要：
Conventional photonic integration technologies are inevitably substrate-dependent, as different substrate platforms stipulate vastly different device fabrication methods and processing compatibility requirements. Here we capitalize on the unique monolithic integration capacity of composition-engineered non-silicate glass materials (amorphous chalcogenides and transition metal oxides) to enable multifunctional, multi-layer photonic integration on virtually any technically important substrate platforms. We show that high-index glass film deposition and device fabrication can be performed at low temperatures (< 250 °C) without compromising their low loss characteristics, and is thus fully compatible with monolithic integration on a broad range of substrates including semiconductors, plastics, textiles, and metals. Application of the technology is highlighted through three examples: demonstration of high-performance mid-IR photonic sensors on fluoride crystals, direct fabrication of photonic structures on graphene, and 3-D photonic integration on flexible plastic substrates.
 
Bio: Juejun (JJ) Hu will be joining MIT’s Department of Materials Science & Engineering in 2015 as an Assistant Professor and Merton C. Flemings Career Development Chair. Prior to the appointment, he is Assistant Professor of Materials Science & Engineering at the University of Delaware. He received his Ph.D. in 2009 from MIT, Materials Science & Engineering. Since becoming a faculty member in 2010, Hu has recognized with awards including: the University of Delaware College of Engineering Outstanding Junior Faculty Member (2014), the Gerard J. Mangone Young Scholars Award (2013), and the University of Delaware Excellence in Teaching Award (2013).