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Nuclear & Plasma Sciences [NPS-5]

Nuclear & Plasma Science; and Photonics Societies

6:00 PM, Thursday, 17 April

Ultra-Miniature Lensless Computational Imagers And Sensors

Dr. David G. Stork, Rambus Fellow, Rambus Labs

We describe a new class of computational optical sensors and imagers that do not rely on traditional refractive or reflective focusing but instead on special diffractive optical elements integrated with CMOS photodiode arrays. The diffractive elements have provably optimal optical properties essential for imaging, and act as a visual chirp and preserve full Fourier image information on the photodiode arrays. Images are not captured, as in traditional imaging systems, but rather computed from raw photodiode signals. Because such imagers forgo the use of lenses, they can be made unprecedentedly small—as small as the cross-section of a human hair. Such imagers have extended depth of field, from roughly 1mm to infinity, and should find use in numerous applications, from endoscopy to infra-red and surveillance imaging and more. Furthermore, the gratings and signal processing can be tailored to specific applications from visual motion estimation to barcode reading and others.

David G. Stork is Distinguished Research Scientist and Research Director of the Computational Sensing and Imaging Group at Rambus Labs. A graduate in physics from MIT and the University of Maryland, Dr. Stork has published eight books/proceedings volumes, including Pattern classification (2nd ed.) and Seeing the Light: Optics in nature, photography, color, vision and holography and has held faculty appointments in eight disciplines variously at Wellesley and Swarthmore Colleges and Clark, Boston and Stanford Universities. He holds 43 issued patents and is Fellow of both the International Association for Pattern Recognition and of SPIE.

Meeting will be held at Boston University Photonics Building Rm. 203, 8 St. Mary’s Street, Boston, MA 02215

For more information contact Min-Chang Lee, (617)-353-3363, mclee@bu.edu


Photonics; Nuclear & Plasma; and Microwave Theory & Techniques Societies

7:00 PM, Thursday, 10 April

Silicon Photonic Integrated Circuits for Telecommunications

Chris Doerr, Acacia Communications

As the complexity of optical transceivers for metro and long-haul fiber-optic links has risen, their costs are becoming prohibitive to keeping up with Internet growth. A solution is optical integration. This talk focuses on optical integration in silicon, which, with a sustainable foundry model and high-quality performance, is starting a new paradigm in telecom.

Christopher R. Doerr PhotoChristopher R. Doerr earned a B.S. in aeronautical engineering and a B.S., M.S., and Ph.D. in electrical engineering from the Massachusetts Institute of Technology (MIT). He attended MIT on an Air Force scholarship and earned pilot wings in 1991. Since coming to Bell Labs in 1995, Doerr’s research has focused on integrated devices for optical communication. He has created many photonic circuits in InP, silica, and silicon and has over 130 patents.

He was promoted to Distinguished Member of Technical Staff in 2000, received the OSA Engineering Excellence Award in 2002, and became an IEEE Fellow in 2006, an OSA Fellow in 2009, and a Bell Labs Fellow in 2011. Doerr was Editor-in-Chief of IEEE Photonics Technology Letters from 2007-2009. He was awarded the William Streifer Scientific Achievement Award in 2009. He was promoted to Technical Manager in 2010. In 2011 he joined Acacia Communications as Director of Integrated Photonics. He is currently an Associate Editor for the Journal of Lightwave Technology. He is currently a program chair for the Optical Fiber Communication Conference.

He draws cartoons for the IEEE Photonics Society News. He is married to Neriko Musha and has two children.

Recommended Reading: R. Nagarajan, C. Doerr, and F. Kish, “Semiconductor Photonic Integrated Circuit Transmitters and Receivers,” in in Optical Fiber Telecommunications VI, 2013. Open-Access link on Google Books.

This meeting begins at 6:30 PM Thursday, April 10th, 2014 and will be located in the cafeteria at MIT Lincoln Laboratory, 244 Wood Street, Lexington, MA 02420. The meeting is free and open to the public. All are welcome. Prior to the seminar there will be social time and networking from 6:30 - 7:00PM in the MIT Lincoln Laboratory cafeteria, the seminar will begin at 7:00PM. For more information contact David Scherer, Boston IEEE Photonics Society Chapter chair at david.scherer@microsemi.com, or visit the Boston IEEE Photonics Society website at www.bostonphotonics.org.

Directions to Lincoln Laboratory: (from interstate I-95/Route 128)

From Exit 31B

Take Exit 31B onto Routes 4/225 towards Bedford - Stay in right lane

Use Right Turning Lane (0.3 mile from exit) to access Hartwell Ave. at 1st Traffic Light.

Follow Hartwell Ave. to Wood St. (~1.3 miles).

Turn Left on to Wood Street and Drive for 0.3 of a mile.

Turn Right into MIT Lincoln Lab at the Wood Street Gate

Have a valid driver’s license to present to security.

From Exit 30B

Take Exit 30B on to Route 2A - Stay in right lane

Turn Right on to Mass. Ave (~ 0.4 miles - opposite Minuteman Tech.).

Follow Mass. Ave for ~ 0.4 miles.

Turn Left on to Wood Street and Drive for 1.0 mile.

Turn Left into MIT Lincoln Lab at the Wood Street Gate

Have a valid driver’s license to present to security.

AAll attendees must present a valid driver's license to MIT Lincoln Laboratory security. To get to the Cafeteria, proceed toward the Main Entrance of Lincoln Laboratory. Before entering the building, proceed down the stairs located to the left of the Main Entrance. Turn right at the bottom of the stairs and enter the building through the Cafeteria entrance. The Cafeteria is located directly ahead.

Quantum Optics / Engineering Workshop:

April 2, 9, 16, 23, 30 2014, 7–9:30 PM, see full schedule at www.bostonphotonics.org