Super-Resolution Imaging with Patchy Microspheres

The diffraction limit is a fundamental barrier in optical microscopy, which restricts the smallest resolvable feature size of a microscopic system. Microsphere-based microscopy has proven to be a promising tool for challenging the diffraction limit. Nevertheless, the microspheres have a low imaging...

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Main Authors:	Qingqing Shang, Fen Tang, Lingya Yu, Hamid Oubaha, Darwin Caina, Songlin Yang, Sorin Melinte, Chao Zuo, Zengbo Wang, Ran Ye
Format:	article
Language:	EN
Published:	MDPI AG 2021
Subjects:	photonic jet photonic hook patchy particle microspheres super-resolution imaging Applied optics. Photonics TA1501-1820
Online Access:	https://doaj.org/article/e5c24c258b2e4f3f9e88f3bb7d647a4a
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id	oai:doaj.org-article:e5c24c258b2e4f3f9e88f3bb7d647a4a
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spelling	oai:doaj.org-article:e5c24c258b2e4f3f9e88f3bb7d647a4a2021-11-25T18:43:41ZSuper-Resolution Imaging with Patchy Microspheres10.3390/photonics81105132304-6732https://doaj.org/article/e5c24c258b2e4f3f9e88f3bb7d647a4a2021-11-01T00:00:00Zhttps://www.mdpi.com/2304-6732/8/11/513https://doaj.org/toc/2304-6732The diffraction limit is a fundamental barrier in optical microscopy, which restricts the smallest resolvable feature size of a microscopic system. Microsphere-based microscopy has proven to be a promising tool for challenging the diffraction limit. Nevertheless, the microspheres have a low imaging contrast in air, which hinders the application of this technique. In this work, we demonstrate that this challenge can be effectively overcome by using partially Ag-plated microspheres. The deposited Ag film acts as an aperture stop that blocks a portion of the incident beam, forming a photonic hook and an oblique near-field illumination. Such a photonic hook significantly enhanced the imaging contrast of the system, as experimentally verified by imaging the Blu-ray disc surface and colloidal particle arrays.Qingqing ShangFen TangLingya YuHamid OubahaDarwin CainaSonglin YangSorin MelinteChao ZuoZengbo WangRan YeMDPI AGarticlephotonic jetphotonic hookpatchy particlemicrospheressuper-resolution imagingApplied optics. PhotonicsTA1501-1820ENPhotonics, Vol 8, Iss 513, p 513 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	photonic jet photonic hook patchy particle microspheres super-resolution imaging Applied optics. Photonics TA1501-1820
spellingShingle	photonic jet photonic hook patchy particle microspheres super-resolution imaging Applied optics. Photonics TA1501-1820 Qingqing Shang Fen Tang Lingya Yu Hamid Oubaha Darwin Caina Songlin Yang Sorin Melinte Chao Zuo Zengbo Wang Ran Ye Super-Resolution Imaging with Patchy Microspheres
description	The diffraction limit is a fundamental barrier in optical microscopy, which restricts the smallest resolvable feature size of a microscopic system. Microsphere-based microscopy has proven to be a promising tool for challenging the diffraction limit. Nevertheless, the microspheres have a low imaging contrast in air, which hinders the application of this technique. In this work, we demonstrate that this challenge can be effectively overcome by using partially Ag-plated microspheres. The deposited Ag film acts as an aperture stop that blocks a portion of the incident beam, forming a photonic hook and an oblique near-field illumination. Such a photonic hook significantly enhanced the imaging contrast of the system, as experimentally verified by imaging the Blu-ray disc surface and colloidal particle arrays.
format	article
author	Qingqing Shang Fen Tang Lingya Yu Hamid Oubaha Darwin Caina Songlin Yang Sorin Melinte Chao Zuo Zengbo Wang Ran Ye
author_facet	Qingqing Shang Fen Tang Lingya Yu Hamid Oubaha Darwin Caina Songlin Yang Sorin Melinte Chao Zuo Zengbo Wang Ran Ye
author_sort	Qingqing Shang
title	Super-Resolution Imaging with Patchy Microspheres
title_short	Super-Resolution Imaging with Patchy Microspheres
title_full	Super-Resolution Imaging with Patchy Microspheres
title_fullStr	Super-Resolution Imaging with Patchy Microspheres
title_full_unstemmed	Super-Resolution Imaging with Patchy Microspheres
title_sort	super-resolution imaging with patchy microspheres
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e5c24c258b2e4f3f9e88f3bb7d647a4a
work_keys_str_mv	AT qingqingshang superresolutionimagingwithpatchymicrospheres AT fentang superresolutionimagingwithpatchymicrospheres AT lingyayu superresolutionimagingwithpatchymicrospheres AT hamidoubaha superresolutionimagingwithpatchymicrospheres AT darwincaina superresolutionimagingwithpatchymicrospheres AT songlinyang superresolutionimagingwithpatchymicrospheres AT sorinmelinte superresolutionimagingwithpatchymicrospheres AT chaozuo superresolutionimagingwithpatchymicrospheres AT zengbowang superresolutionimagingwithpatchymicrospheres AT ranye superresolutionimagingwithpatchymicrospheres
_version_	1718410805836251136

Super-Resolution Imaging with Patchy Microspheres

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