An Optical Cloak
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| Audience/Grade: | College Freshman-Continuing Education |
| Discipline(s): |
MEMS/NEMS Manufacturing Engineering Materials Engineering Mechanical Engineering Nanotechnology |
| Special Topic(s): | |
| Learning Resource Type: |
Reference - Visuals |
| Media Type: |
Unknown |
| Author(s): |
Xiang Zhang |
| Description: | Press release with engaging visual animation. "A major step towards the realization of invisibility in the visible region is reported online this week in Nature Materials. The study demonstrates cloaking in the optical region for wavelengths in the near-infrared part of the spectrum and moves us a step closer to invisibility in a region that can been seen by humans. Although cloaking has been demonstrated recently for the microwave region, the device structure used for these cloaks makes scaling down to the small wavelengths of the visible region challenging. Xiang Zhang and colleagues have now achieved cloaking in the optical region by etching small nanoscale holes into a layer of silicon. The holes follow a complex pattern and are designed to hide an object underneath a small bump -- creating a so-called carpet cloak. Compared with previous realizations of cloaking, the present design shows low losses and broadband operation over a wide part of the near-infrared spectrum. This design also has the potential to readily scale towards the visible region." |
| Rating: | No Rating |
| Related Resources | |
| Keywords: | nanomanufacturing nanotechnology nanoscale nanotubes nanowires phonon transport thermoelectrics radiation solar energy conversion nonfluids |
| Version Info | |
| Publication Date: | May 2009 |
| Platform/Format: |
WWW |
| Cost: |
Free |
| Download URL: | http://xlab.me.berkeley.edu/index.html |
| Metadata: |
IEEE LOM Record |
| Collection: |
SINAM
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