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Multifocal Autofocu...
Multifocal Autofocused Airy Beam Metasurfaces
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- Shanei, Mohammad Mahdi (författare)
- KTH,Elektroteknisk teori och konstruktion
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Hashemi, M. (författare)
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Naresh Kumar Reddy, A. (författare)
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Rodríguez, C. J. Z. (författare)
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(creator_code:org_t)
- Institute of Physics Publishing (IOPP), 2019
- 2019
- Engelska.
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Ingår i: 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).
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)