Sending report ...Nanotechnology 501 Lecture Series
Nanoscale Antenna Apertures
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Supporting Documents
- Presentation (with audio) (SWF)
- Presentation Slides (PDF, 2.04 Mb)
- Podcast (video) What's this? (MP4, 36.46 Mb)
- Podcast (audio) What's this? (MP3, 24.07 Mb)
| Contributor(s) | Xianfan Xu Purdue University, West Lafayette |
|---|---|
| Abstract | This presentation will discuss light concentration and enhancement in nanometer-scale ridge aperture antennas. Resent research, including numerical simulations and near field optical measurements has demonstrated that nanoscale ridge antenna apertures can concentrate light into nanometer domain. More importantly, these ridge antenna apertures also provide enhanced optical transmission several orders of magnitude higher than regularly shaped nano-apertures. We will discuss fundamental theories of ridge antenna apertures, finite-difference time-domain (FDTD) calculations for optimizing the design of these antenna apertures, and near field scanning optical microscope (NSOM) measurements of the near field intensity distribution of the light transmitted through these apertures. It is shown that the nanoscale antenna apertures can produce a concentrated light spot beyond the diffraction limit with enhanced transmission. Potential applications of these nanoscale aperture antennas include nano-lithography and nano-imaging. |
| Biography | Xianfan Xu is a Professor of Mechanical Engineering at Purdue University. He obtained his M.S. (1991) and Ph.D. (1994) degrees in Mechanical Engineering from the University of California, Berkeley. His current research is on laser based micro- and nano-engineering, including nanoscale laser machining/lithography, development of optical MEMS and NEMS, and near field nano-optics. |
| Sponsored by | NCN@Purdue Student Leadership Team |
| Cite this work | If you reference this work in a publication, please cite as follows: |
| Date posted | 24 Apr, 2007 |
| Time | 02:00 PM, March 21, 2007 |
| Location | EE Building, Room 317 |
| Type | Online Presentations |
| Tags |
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- 10.0 Ranking Series Part of: NCN Nanophotonics: Tutorials
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9.5 Ranking Series
Part of: Nanotechnology 501 Lecture Series
Nanotechnology 501 Lecture Series
Nanotechnology 501 is a series of lectures designed to provide an introduction to nanotechnology. This series is similar to our popular Nanotechnology 101 series, but directed at the graduate student/professional level.
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