Please use this identifier to cite or link to this item: https://doi.org/10.1021/nn406201q
Title: Microsphere-coupled scanning laser confocal nanoscope for sub-diffraction-limited imaging at 25 nm lateral resolution in the visible spectrum
Authors: Yan, Y.
Li, L.
Feng, C.
Guo, W.
Lee, S.
Hong, M. 
Keywords: diffraction limit
imaging
microsphere
nanoscope
scanning laser confocal microscope
super-resolution
Issue Date: 25-Feb-2014
Source: Yan, Y., Li, L., Feng, C., Guo, W., Lee, S., Hong, M. (2014-02-25). Microsphere-coupled scanning laser confocal nanoscope for sub-diffraction-limited imaging at 25 nm lateral resolution in the visible spectrum. ACS Nano 8 (2) : 1809-1816. ScholarBank@NUS Repository. https://doi.org/10.1021/nn406201q
Abstract: We report a direct optical super-resolution imaging approach with 25 nm (∼λ/17) lateral resolution under 408 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. © 2014 American Chemical Society.
Source Title: ACS Nano
URI: http://scholarbank.nus.edu.sg/handle/10635/82698
ISSN: 19360851
DOI: 10.1021/nn406201q
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