Sub-Diffraction-Limited Optical Imaging with a Silver Superlens

Fang, N. and Lee, H. and Sun, C. and Zhang, X.. (2005) Sub-Diffraction-Limited Optical Imaging with a Silver Superlens. Science, 308 (5721). pp. 534-537. ISSN 0036-8075

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Recent theory has predicted a superlens that is capable of producing sub–diffraction-limited images. This superlens would allow the recovery of evanescent waves in an image via the excitation of surface plasmons. Using silver as a natural optical superlens, we demonstrated sub–diffraction-limited imaging with 60-nanometer half-pitch resolution, or one-sixth of the illumination wavelength. By proper design of the working wavelength and the thickness of silver that allows access to a broad spectrum of subwavelength features, we also showed that arbitrary nanostructures can be imaged with good fidelity. The optical superlens promises exciting avenues to nanoscale optical imaging and ultrasmall optoelectronic devices.

Item Type: Article
InterNano Taxonomy: Nanomanufacturing Characterization Techniques
Nanoscale Objects and Nanostructured Materials > Nanocomposites > Optical
Collections: Nanomanufacturing Research Collection
Depositing User: Moureen Kemei
Date Deposited: 22 Mar 2010 15:02
Last Modified: 22 Mar 2010 15:02

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