Seminar: Nanoplasmonics for sensing, energy harvesting and color displays

Discussion from Junking Guo, PhD

All dates for this event occur in the past.

Nanoplasmonics for Sensing, Energy Harvesting, and Color Displays

Who:

Junpeng Guo, Department of Electrical and Computer Engineering, University of Alabama in Huntsville website: http://guolab.uah.edu

 

Date: 

11:00 AM – 12:00 PM, Friday, December 4th, 2015 

Where:          

ElectroScience Lab, The Ohio State University, MRC Conference Room #132, 1330 Kinnear Road, Columbus, OH 43212

Abstract:

Structured metals, such as holes, particles, patches, are intrinsically plasmonic optical resonators that can store and dissipate electromagnetic energy at their resonance frequencies. Resonance frequencies of metallic nanostructures can be designed by their size and geometry, and are very sensitive to their surface surroundings. To utilize the surface plasmon resonance of nanostructures, various surface plasmon enhanced biosensors have been investigated. However, majority of surface plasmon enhanced biosensors rely on optical spectrometers for resonance measurement. In this talk, I will present a new surface plasmon resonance biosensor platform based on super-lattice metal nanostructures, which enables real-time visualized surface plasmon resonance biochemical sensing. Metallic nanostructures can also be designed to completely absorb light at their resonance wavelengths. In this talk, I will also show a gap-mode plasmon resonance structure for perfect light absorption in visible and IR spectral range. The gap-mode plasmon resonance is potentially significant for many applications such as bio-sensing, solar energy harvesting, nonlinear optics, enhanced light-matter interaction, and color filters.

Bio:

Junpeng Guo earned his Ph.D. degree in Electrical and Computer Engineering at the University of Illinois at Urbana-Champaign. After receiving his Ph.D., he joined the former Rockwell International Science Center in Thousand Oaks, California as a Research Scientist to work on nonlinear optics and nanophotonics. After three years with the Rockwell Science Center, he took a venture to join a high-tech startup company to develop uncooled high-speed semiconductor lasers for optical communications. After he accomplished the goal of making the first commercial 10G/s uncooled laser product, he moved to Sandia National Laboratories as a Member of Technical Staff, where he led multiple DOE silicon photonics programs for a variety of applications. In fall 2005, he became Professor of Electrical Engineering and Professor of Optical Science and Engineering at University of Alabama in Huntsville (UAH). Dr. Guo has worked in a wide area of optics and photonics during his career in industry and academia. Most significantly, he made the first high-resolution thin film micropolarizer array, which stimulated and enabled the multi-billion dollar 3D display industry. He invented the hybrid plasmon waveguide structure that enables low loss propagation of surface plasmon waves. Recently, he invented the spectrometer biosensor based on super-lattice metal nanostructure gratings. Prof. Guo received the Alan Berman Research Publication Award at NRL in 2012 and the Outstanding Junior Faculty Award of Engineering at UAH in 2007. He is a senior member of OSA and a senior member of SPIE, and currently serves as an Associate Editor of the OSA Journal of Photonics Research.