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Three-dimensional orientation-unlimited polarization encryption by a single optically configured vectorial beam

Author

Listed:
  • Xiangping Li

    (Centre for Micro-Photonics, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology)

  • Tzu-Hsiang Lan

    (Centre for Micro-Photonics, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology
    National Chiao Tung University)

  • Chung-Hao Tien

    (National Chiao Tung University)

  • Min Gu

    (Centre for Micro-Photonics, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology)

Abstract

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.

Suggested Citation

  • Xiangping Li & Tzu-Hsiang Lan & Chung-Hao Tien & Min Gu, 2012. "Three-dimensional orientation-unlimited polarization encryption by a single optically configured vectorial beam," Nature Communications, Nature, vol. 3(1), pages 1-6, January.
    • Handle: RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms2006
    DOI: 10.1038/ncomms2006
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    Cited by:

    1. Harish Kumar K & Nagasamy Venkatesh & Himangshu Bhowmik & Anuttam Kuila, 2018. "Metallic Nanoparticle: A Review," Biomedical Journal of Scientific & Technical Research, Biomedical Research Network+, LLC, vol. 4(2), pages 3765-3775, April.

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