Please use this identifier to cite or link to this item:
|Title:||Optimization-free superoscillatory lens using phase and amplitude masks||Authors:||Huang, K.
|Keywords:||Binary phase mask
Fresnel zone plate
|Issue Date:||Jan-2014||Citation:||Huang, K., Ye, H., Teng, J., Yeo, S.P., Luk'yanchuk, B., Qiu, C.-W. (2014-01). Optimization-free superoscillatory lens using phase and amplitude masks. Laser and Photonics Reviews 8 (1) : 152-157. ScholarBank@NUS Repository. https://doi.org/10.1002/lpor.201300123||Abstract:||A superoscillatory focusing lens has been experimentally demonstrated by optimizing Fresnel zone plates (FZP), with limited physical insight as to how the lens feature contributes to the focal formation. It is therefore imperative to establish a generalized viable account for both FZP (amplitude mask) and binary optics (phase mask). Arbitrary superoscillatory spots can now be customized and realized by a realistic optical device, without using optimization. It is counterintuitively found that high spatial frequency with small amplitude and destructive interference are favorable in superfocusing of a superoscillation pattern. The inevitably high sidelobe is pushed 15λ away from the central subwavelength spot, resulting in significantly enlarged field of view for viable imaging applications. This work therefore not only reveals the explicit physical role of any given metallic/dielectric rings but also provides an alternative design roadmap of superresolution imaging. The robust method is readily applicable in superthin longitudinally polarized needle light, quantum physics and information theory. © 2013 by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.||Source Title:||Laser and Photonics Reviews||URI:||http://scholarbank.nus.edu.sg/handle/10635/82847||ISSN:||18638880||DOI:||10.1002/lpor.201300123|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jan 24, 2021
WEB OF SCIENCETM
checked on Jan 15, 2021
checked on Jan 18, 2021
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.