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03.22.2007 - Goal of nanoscale optical imaging gets boost with new hyperlens (1042 words) |
 | Evanescent waves contain far greater detail and resolution of an object, but they decay too quickly for conventional lenses to capture them. |
| In 2005, Zhang led a research team that developed a superlens capable of capturing evanescent waves and imaging an object at a half-pitch resolution of 60 nanometers. |
| This exponential loss of the evanescent waves required the image plane to sit close to the lens. |
| Canadian Instrumentation and Research, Ltd. (785 words) |
| This demonstrates that there is an evanescent energy field outside the cube material allowing interaction of the two surfaces across the small air gap. |
| If the evanescent tails of each waveguide have considerable overlap, it can be shown that there are two possible solutions for mode propagation in the two waveguide structure. |
| The polished evanescent wave coupler is based on bringing the cores of two fibers close together by removing part of the cladding and optically contacting the polished faces. |
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