標題: | Three-dimensional orientation-unlimited polarization encryption by a single optically configured vectorial beam |
作者: | Li, Xiangping Lan, Tzu-Hsiang Tien, Chung-Hao Gu, Min 光電工程學系 Department of Photonics |
公開日期: | 1-Aug-2012 |
摘要: | The interplay between light polarization and matter is the basis of many fundamental physical processes and applications. However, the electromagnetic wave nature of light in free space sets a fundamental limit on the three-dimensional polarization orientation of a light beam. Although a high numerical aperture objective can be used to bend the wavefront of a radially polarized beam to generate the longitudinal polarization state in the focal volume, the arbitrary three-dimensional polarization orientation of a beam has not been achieved yet. Here we present a novel technique for generating arbitrary three-dimensional polarization orientation by a single optically configured vectorial beam. As a consequence, by applying this technique to gold nanorods, orientation-unlimited polarization encryption with ultra-security is demonstrated. These results represent a new landmark of the orientation-unlimited three-dimensional polarization control of the light-matter interaction. |
URI: | http://dx.doi.org/10.1038/ncomms2006 http://hdl.handle.net/11536/16917 |
ISSN: | 2041-1723 |
DOI: | 10.1038/ncomms2006 |
期刊: | NATURE COMMUNICATIONS |
Volume: | 3 |
Issue: | |
結束頁: | |
Appears in Collections: | Articles |
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