Ken Crozier, Harvard UniversityThe Optical Antenna: A Versatile Tool for NanophotonicsAbstract:Progress in nanotechnology is fundamentally dependent on tools for observation, measurement and manipulation. Optical techniques are well established at the macro-scale, but difficult to apply on the nano-scale. This is due to the mismatch between the wavelength of light, and the dimensions of nanostructures. A new photonic device, known as an optical antenna, presents an opportunity to bridge these length scales. It enables electromagnetic energy to be concentrated into a deep sub-wavelength region. In this presentation, I will discuss recent experimental work on optical antennas fabricated on the facets of laser diodes (see APL 89, 093120 (2006)). Potential applications will be discussed. BiographyCrozier studied Electrical Engineering and Physics at the University of Melbourne, Australia, where he received his B. Eng. with First Class Honors (1995) and B.S. (1996). He completed both his M.S.E.E. (1999) and Ph.D. (2003) in Electrical Engineering from Stanford University. Crozier carried out his doctoral dissertation under Calvin Quate and Gordon Kino. Prior to coming to Harvard, he worked as a postdoctoral researcher at Stanford with Olav Solgaard. His current research focuses on experimental studies on nanophotonics. In particular, he is exploring near-field optical imaging techniques for spectroscopy with a spatial resolution significantly better than the classical diffraction limit. He is also interested in demonstrating new optical components based on photonic crystals. Crozier has published on microfabrication, scanning probe microscopy, and photonic crystals. At Stanford, he received the Leland T. Edwards Fellowship and the Burt and Deedee McMurtry Stanford Graduate Fellowship. At the University of Melbourne, he received the L.R. East Medal from the Institution of Engineers, Australia, and the Rowden White Prize in Engineering. He is a member of the IEEE.
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