SMP 2/4/12 | From Negative Refraction to Wireless Power Transfer: The Path of the Superlens | Speaker: Roberto Merlin
- All News & Features
- All Events
- Special Lectures
- K-12 Programs
- Saturday Morning Physics
-
- Subscribe
- Taping
- Past Events
-
-
-
-
-
-
-
-
-
- SMP 12/21/02 | Peering into the Earth: From Earthquakes to Diamonds | Speaker: Wendy Panero
-
-
-
-
-
-
-
-
-
-
-
-
-
- SMP 3/24/12 | String Symphonies in the Sky: Understanding Black Holes Using String Theory | Speaker: Finn Larsen
- SMP 3/17/12 | Cosmic Engines: The Complex Evolution of Galaxies | Speaker: Brian Nord Jr.
- SMP 3/10/12 | The Shape of Our Universe: The Complexity of Large-Scale Structure and Large-Scale Science | Speaker: Brian Nord Jr.
- SMP 2/18/12 | Quantum Field Theory: The Language of Particle Physics | Speaker: Henriette Elvang
- SMP 2/11/12 | String Theory and Our Real World | Speaker: Gordon Kane
- SMP 2/4/12 | From Negative Refraction to Wireless Power Transfer: The Path of the Superlens | Speaker: Roberto Merlin
- SMP 1/28/12 | Crystals Made of Light | Speaker: Rachel Sapiro
- SMP 1/21/12 | Einstein as a Cultural Figure | Speaker: Philip Glass, Sean Carroll, Michael Turner, Fred Adams
-
-
-
-
-
-
-
-
- Seminars & Colloquia
Saturday, February 4, 2012
12:00 AM
170 & 182 Dennison Building
Speaker: Roberto Merlin (Peter A. Franken Collegiate Professor of Physics and Professor of Electrical Engineering and Computer Science, UM)
Professor Merlin's talk takes us from the late 1800's, when Abbe published his ground-breaking paper on the limit of resolution of an optical instrument, to the turn of the 20th century, when the field of near-field optics experienced tremendous growth, emphasizing recent work on sub-wavelength focusing using negative-index slabs. In the second half of the talk, he introduces the concept of near-field plates. These are grating-like planar structures, which provide focusing well beyond the diffraction limit, at arbitrary frequencies. The subwavelength electromagnetic-field distributions of the plates closely resemble those of negative-index slabs. Practical implementations of these plates hold promise for near-field data storage, non-contact sensing, imaging, nanolithography and wireless power transfer applications. Experimental results on a microwave near-field plate will be presented, which demonstrate focusing of 1 GHz radiation at a resolution of LAMBDA/20.