Date:  
30 April 2008, Wednesday 6:30 PM
Speaker:  
Weimin Zhou , Army Research Laboratory
Title:  
RF-Photonics Research at ARL
Abstract:  

I will introduce the RF-Photonics research programs at ARL. Currently we are working on several areas such as generating ultra low phase noise RF microwave signals using an injection-locked dual optoelectronic oscillator; processing a single RF-pulse signal by developing a true-time domain RF-Photonic correlation receiver using optical fiber recirculation loops; developing a low cost simplified phased array antenna using an all-fiber based optical true-time-delay array generator; and developing novel semiconductor micro and nano-photonic devices such as photonic crystal devices with MEMS activated defects (inserting nano-posts into the photonic crystal holes) which can be integrated into a reconfigurable photonic circuits so that future multifunction RF-photonic device/system could be built in chip scale. In this talk, I will explain the tremendous benefits of using these photonics innovations in RF microwave systems, our unique and revolutionary concept in each case and show the state of the art experimental results for proof of the principle demonstrations.

Biography:  

Weimin Zhou is a research physicist and the team leader of the RF-Photonics team at the U.S. Army Research Laboratory (ARL) at Adelphi, MD. He also serves as a Defense Advanced Research Projects Agency’s (DARPA) agent, on numerous source selection committees, and has monitored numerous DARPA contracts. Dr. Zhou received the B.S. and M.S. degrees in Physics from Université de Toulouse (France) and the Ph.D. degree in Physics from Northeastern University in 1991. He has worked shortly at Bellcore as member of technical staff before he joined the U.S. Army Electronic Technology and Devices Laboratory in Fort Monmouth, NJ which later became ARL. His current research activities span from RF microwave-photonic devices/systems research, to development of novel photonic and nanophotonic material/devices. He has published more than 70 technical papers including 2 book chapters, holds 9 U.S. patents/provisional patents, and has given numerous invited talks.

Sponsor:  
Sponsored by the Washington / Northern Virginia LEOS Chapter
Place:  
The University of Maryland, College Park, MD. A. V. Williams Building, Room 2460
*see parking (below)
Time:  
6:00 PM - light refreshments and socializing.
6:30 PM - Lecture
*optional dinner following lecture with the speaker at a local restaurant.
Contact:  
Dominique Dagenais 301-951-7095
Directions:  

A map to the AV Williams Building [showing nearby parking] can be found on the UMD parking map