Nanophotonics in systems of large sizes

5^th International Conference and Exhibition on Lasers, Optics & Photonics

November 28-30, 2016 Atlanta, USA

Bo Zhen

Massachusetts Institute of Technology, USA
Technion- Israel Institute of Technology, Israel

Posters & Accepted Abstracts: J Laser Opt Photonics

Abstract :

Nanophotonic structures provide unique ways to control and manipulate light, due to the small feature sizes in the order of hundreds of nanometers. However, many real-life applications favor devices of large sizes, due to practical considerations such as heat management and electrical pumping. As a result, large-area nanophotonic systems have drawn great interest in the photonics community. On the one hand, the nanoscopic features provide exotic and novel ways to control light; while on the other hand, the large size of the system makes them useful for applications such as displays, high-power lasers, sensors and filters. In this talk, I will present three topics in our recent results along this research direction. First, I will discuss our theoretical and experimental work on â�?�?bound states in the continuum,â�? an exotic type of resonances first predicted in 1929, along with their connections to the field of singular optics and vector beams. Secondly, I will present our recent achievements in single-sided radiation and perfect absorption without using mirrors. I will describe the underlying physics and discuss their uses in silicon photonics devices (such as LIDAR antennas), grating couplers, and metasurfaces. Finally, I will move to exceptional points, a unique type of degeneracies in nonhermitian physics. I will present our recent experimental work demonstrating that a ring of exceptional points can be spawned from a single Dirac point, and I will discuss their uses in achieving higher power photonic crystal surface emitting lasers and new types of sensors.

Biography :

Email: BOZHEN@MIT.EDU