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Multifocal Autofocused Airy Beam Metasurfaces
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Electromagnetic Engineering.ORCID iD: 0000-0001-9099-0711
2019 (English)In: 6th International School and Conference "Saint Petersburg OPEN 2019": Optoelectronics, Photonics, Engineering and Nanostructures 22–25 April 2019, Saint Petersburg, Russian Federation, Institute of Physics Publishing (IOPP), 2019, Vol. 1410, no 1, article id 012150Conference paper, Published paper (Refereed)
Abstract [en]

To focus the incident light, both convex metalenses with hyperbolic phase profile and autofocused Airy (AFA) beams are widely used. To obtain AFA-based bifocal metalenses, we propose two methods in this article. One is to bring the two conjugate focal points of an AFA beam into the real space by applying a proper convex lens phase profile. The other is to use the inefficient central space between the two launched Airy beams with zero amplitude and constant phase profile as an independent metalens. We also show that combining the two introduced methods, leads the design to upgrade to a multifocal structure.

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2019. Vol. 1410, no 1, article id 012150
Series
Journal of Physics: Conference Series, ISSN 1742-6588 ; 1410
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-267866DOI: 10.1088/1742-6596/1410/1/012150Scopus ID: 2-s2.0-85078202320OAI: oai:DiVA.org:kth-267866DiVA, id: diva2:1397146
Conference
6th International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures, SPbOPEN 2019; St. Petersburg Academic University, Saint Petersburg; Russian Federation; 22 April 2019 through 25 April 2019
Note

QC 20200227

Available from: 2020-02-27 Created: 2020-02-27 Last updated: 2020-02-27Bibliographically approved

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Shanei, Mohammad Mahdi

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