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July 28, 2010

Mtg: Controlling Light Propagation at the Nanometer Scale by Novel Plasmonic and Dielectric Devices

by @ 5:47 pm. Filed under ALL, Electronics Design, Engineering Mgmt, NanoEngineering, Optics/Displays, Semiconductors
 

TUESDAY August 17, 2010
SCV Nanotechnology Chapter
Speaker: Jingjing Li, Information and Quantum Systems Lab, Hewlett-Packard Laboratories
Time: Registration & light lunch 11:30 AM; Presentation at 12:00 Noon
Cost: IEEE Members and Students $5; Non-Members $10
Place: National Semiconductor Bldg E-1 CMA Room. 2900 Semiconductor Drive, Santa Clara
RSVP: from the website
Web: www.ieee.org/nano

Controlling the propagation and localization of light at the sub-wavelength dimension is the basis of the design of many optical devices widely used in engineering and fundamental science research.? These include waveguides, cavity resonators, optical antennas, and many others.? In this talk, I will discuss our approach to manipulating light at the nanometer scale using plasmonic and dielectric structures with specially designed geometries.? By combining the property of plasmonic materials with concepts and ideas from other areas, such as metamaterial, photonic crystal, antenna array in radio frequency and microwave domain, etc, we are able to control a dipolar optical radiation (from a molecule, an atom, etc) in various aspects, including the radiation strength, the polarization and the radiation pattern.? A recently developed method for controlling the phase front of an optical beam will also be discussed.? Devices of completely planar geometry but working as spherical mirrors are designed and fabricated on a chip using a standard micro-fabrication process.? This dramatically changes the picture of how optics work at the micro/nanometer dimension, leading to new approaches for designing various optical elements.? These include optical cavities that hold optical modes in free space with a size close to the diffraction limit, on-chip complex optical systems used in consumer electronics, etc, which will also be discussed in the talk.

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