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Microsphere-Coupled Scanning Laser Confocal Nanoscope for Sub-Diffraction-Limited Imaging at 25 nm Lateral Resolution in the Visible Spectrum

Y.Z. Yan, L. Li; C. Feng, W. Guo, S. Lee, M.H. Hong

A C S Nano. 2014;8(2):1809-1806.

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Abstract

We report a direct optical super-resolution imaging approach with 25 nm (similar to lambda/17) lateral resolution under 488 nm wavelength illumination by combining fused silica and polystyrene microspheres with a conventional scanning laser confocal microscope (SLCM). The microsphere deposited on the target surface generates a nanoscale central lobe illuminating a sub-diffraction-limited cross-section located on the target surface. The SLCM confocal pinhole isolates the reflected light from the near-field subdiffractive cross-section and suppresses the noises from the side lobe and the far-field paraxial focal point. The structural detail of the subdiffractive cross-section is therefore captured, and the 2D target surface near the bottom of microspheres can be imaged by intensity-based point scanning.

Keyword(s)

super-resolution imaging microsphere scanning laser confocal microscope nanoscope diffraction limit

Bibliographic metadata

Type of resource:
Content type:
Publication status:
Published
Publication type:
Publication form:
Published date:
Language:
eng
Journal title:
Abbreviated journal title:
ISSN:
Volume:
8
Issue:
2
Start page:
1809
End page:
1806
Pagination:
1809-1806
Digital Object Identifier:
10.1021/nn406201q
Funder(s) acknowledged in this article?:
Yes
Research data access statement included:
Not applicable
Attached files embargo period:
Immediate release
Attached files release date:
28th January, 2015
Access state:
Active

Record metadata

Manchester eScholar ID:
uk-ac-man-scw:255392
Created by:
Li, Lin
Created:
28th January, 2015, 20:49:16
Last modified by:
Sokolovski, Vera
Last modified:
2nd November, 2015, 13:37:51

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