Wednesday, 13 October 2004 - 9:15 AM

This presentation is part of : Sub-wavelength Nanostructuring II

Engineering Sub-wavelength Photonic Meta-Materials (invited talk)

Xiang Zhang, NSF Nano-scale Science and Engineering Center (NSEC), NSF Nano-scale Science and Engineering Center (NSEC), 37-144 Engineering IV Building, University of California, Los Angeles, CA 90024

Recent theory predicted a new class of meta structures made of engineered sub wavelength entities - meta "atoms" and "molecules" which enable the unprecedented electromagnetic properties that do not exist in the nature. For example, artificial plasma and artificial magnetism, and super lens that focuses far below the diffraction limit. If the theory is correct and these unique properties can be realized, it will have profound impact in wide range of applications such as nano-scale imaging, nanolithography, and integrated nano photonics. These photonic "atoms" usually form highly complex structures which present a critical need in developing truly 3D micro and nano-manufacturing techniques which are not available presently.

In this talk, I'll discuss sub-l photonic "atoms" and "molecules" and the potential applications in nano-scale imaging and lithography. We demonstrated, for the first time, the high frequency magnetic activity at THz generated by artificially structured "molecule resonance", as well as the artificial plasma. Our experiment also confirmed the key proposition of super lens theory by using surface plasmon. We observed preliminary superlensing at near-field. The surface plasmon indeed promises an exciting nano engineering paradigm of "optical frequency and x-ray wavelength". I'll discuss a few micro and nano fabrication technologies that we developed for engineering complex 3D meta-structures. This talk will be concluded with a brief introduction of the newly established NSF Nano-scale Science and Engineering Center (NSEC).


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