On-chip photonic Fourier transform with surface plasmon polaritons.

Autor:	Kou SS; Department of Chemistry and Physics, La Trobe Institute for Molecular Science (LIMS), La Trobe University, Melbourne, VIC 3086, Australia.; Australian Research Council Centre of Excellence for Advanced Molecular Imaging, Australia.; School of Physics, The University of Melbourne, VIC 3010, Australia., Yuan G; Centre for Disruptive Photonic Technologies, Nanyang Technological University, Singapore 637371, Singapore., Wang Q; Institute of Materials Research and Engineering, ASTAR, 3 Research Link, Singapore 117602, Singapore., Du L; Nanophotonics Research Centre, Shenzhen University & Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China., Balaur E; Department of Chemistry and Physics, La Trobe Institute for Molecular Science (LIMS), La Trobe University, Melbourne, VIC 3086, Australia.; Australian Research Council Centre of Excellence for Advanced Molecular Imaging, Australia., Zhang D; School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore., Tang D; School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore., Abbey B; Department of Chemistry and Physics, La Trobe Institute for Molecular Science (LIMS), La Trobe University, Melbourne, VIC 3086, Australia.; Australian Research Council Centre of Excellence for Advanced Molecular Imaging, Australia., Yuan XC; Nanophotonics Research Centre, Shenzhen University & Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China., Lin J; School of Physics, The University of Melbourne, VIC 3010, Australia.; Nanophotonics Research Centre, Shenzhen University & Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.; School of Engineering, RMIT University, Melbourne, VIC 3001, Australia.
Jazyk:	angličtina
Zdroj:	Light, science & applications [Light Sci Appl] 2016 Feb 26; Vol. 5 (2), pp. e16034. Date of Electronic Publication: 2016 Feb 26 (Print Publication: 2016).
DOI:	10.1038/lsa.2016.34
Abstrakt:	The Fourier transform (FT), a cornerstone of optical processing, enables rapid evaluation of fundamental mathematical operations, such as derivatives and integrals. Conventionally, a converging lens performs an optical FT in free space when light passes through it. The speed of the transformation is limited by the thickness and the focal length of the lens. By using the wave nature of surface plasmon polaritons (SPPs), here we demonstrate that the FT can be implemented in a planar configuration with a minimal propagation distance of around 10 μm, resulting in an increase of speed by four to five orders of magnitude. The photonic FT was tested by synthesizing intricate SPP waves with their Fourier components. The reduced dimensionality in the minuscule device allows the future development of an ultrafast on-chip photonic information processing platform for large-scale optical computing.
Databáze:	MEDLINE
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