Please use this identifier to cite or link to this item:
|Title:||Classical imaging theory of a microlens with super-resolution||Authors:||Duan, Yubo
|Issue Date:||2013||Source:||Duan, Y., Barbastathis, G., & Zhang, B. (2013). Classical imaging theory of a microlens with super-resolution. Optics Letters, 38(16), 2988-2990.||Series/Report no.:||Optics letters||Abstract:||Super-resolution in imaging through a transparent spherical microlens has attracted lots of attention because of recent promising experimental results with remarkable resolution improvement. To provide physical insight for this super-resolution phenomenon, previous studies adopted a phenomenological explanation mainly based on the super-focusing effect of a photonic nanojet, while a direct imaging calculation with classical imaging theory has rarely been studied. Here we theoretically model the imaging process through a microlens with vectorial electromagnetic analysis, and then exclude the previously plausible explanation of super-resolution based on the super-focusing effect. The results showed that, in the context of classical imaging theory subject to the two-point resolution criterion, a microlens with a perfect spherical shape cannot achieve the experimentally verified sub-100 nm resolution. Therefore, there must be some other physical mechanisms that contribute to the reported ultrahigh resolution but have not been revealed in theory.||URI:||https://hdl.handle.net/10356/98232
|DOI:||10.1364/OL.38.002988||Rights:||© 2013 Optical Society of America. This is the author created version of a work that has been peer reviewed and accepted for publication by Optics Letters, Optical Society of America. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1364/OL.38.002988].||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||SPMS Journal Articles|
Files in This Item:
|Classical imaging theory of a micro-lens with super-resolution_r4_withFundSource.pdf||331.43 kB||Adobe PDF|
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.