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Proceedings Paper

Active terahertz holography
Author(s): Zhenwei Xie; Xinke Wang; Yan Zhang
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Paper Abstract

We present a novel technology to dynamically control the wave front of the terahertz (THz) beam with photo-generated carriers. The computer generated hologram is projected onto a silicon wafer by a conventional optical spatial light modulator. The photo-generated carriers on the silicon surface will from a hologram to modulate the wave front of the input THz beam. Some special field distributions and vortex beams are generated using this method. This technology is broadband, structure free, tunable, and all-optical controllable. It will provide numerous possible applications in future THz imaging and communication systems.

Paper Details

Date Published: 21 December 2013
PDF: 6 pages
Proc. SPIE 9047, 2013 International Conference on Optical Instruments and Technology: Micro/Nano Photonics and Fabrication, 90470B (21 December 2013); doi: 10.1117/12.2038300
Show Author Affiliations
Zhenwei Xie, Harbin Institute of Technology (China)
Xinke Wang, Capital Normal Univ. (China)
Yan Zhang, Harbin Institute of Technology (China)
Capital Normal Univ. (China)


Published in SPIE Proceedings Vol. 9047:
2013 International Conference on Optical Instruments and Technology: Micro/Nano Photonics and Fabrication
Zhiping Zhou; Changhe Zhou; Zhiping Zhou, Editor(s)

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