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Generation of multiple vortex-cones by direct-phase modulation of annular aperture array
- Authors
- Cho, Seong-Woo; Kim, Hwi; Hahn, Joonku; Lee, Byoungho
- Issue Date
- 20-10월-2012
- Publisher
- OPTICAL SOC AMER
- Citation
- APPLIED OPTICS, v.51, no.30, pp.7295 - 7302
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED OPTICS
- Volume
- 51
- Number
- 30
- Start Page
- 7295
- End Page
- 7302
- ISSN
- 1559-128X
- Abstract
- The generation of multiple vortex cones using an annular aperture array and a spatial light modulator (SLM) is studied. The direct downscale imaging of an SLM on the surface of an annular aperture enables the direct-phase modulation of the annular aperture. It is experimentally demonstrated that the direct-phase modulation of an annular aperture array can control both the topological charge and the horizontal positions of multiple vortex cones simultaneously. (C) 2012 Optical Society of America
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