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Title: Dynamic generation of plasmonic Moiré fringes using phase-engineered optical vortex beam
Authors: Yuan, Guanghui
Wang, Qian
Yuan, Xiaocong
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2012
Source: Yuan, G., Wang, Q., & Yuan, X. (2012). Dynamic generation of plasmonic Moiré fringes using phase-engineered optical vortex beam. Optics Letters, 37(13), 2715-2717.
Series/Report no.: Optics letters
Abstract: Dynamic generation of plasmonic Moiré fringes using a phase engineered optical vortex (OV) beam is experimentally demonstrated. Owing to the unique helical phase carried by an OV beam, the initial phase of surface plasmon polaritons (SPPs) emanating from a metallic grating can be adjusted dynamically by changing the phase hologram displayed on a spatial light modulator. Plasmonic Moiré fringes are readily achieved by overlapping two SPP standing waves with certain angular misalignment, excited by the positive and negative topological charge components, respectively, of a cogwheel-like OV beam. The near-field scanning optical microscopy measurement result of SPP distributions has shown a good agreement with the numerical predictions.
ISSN: 0146-9592
DOI: 10.1364/OL.37.002715
Rights: © 2012 Optical Society of America. This paper was published in Optics Letters and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The paper can be found at the following official DOI: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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