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Near-field imaging of point dipole with silver superlens
KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT.
2010 (English)In: Applied physics. B, Lasers and optics (Print), ISSN 0946-2171, E-ISSN 1432-0649, Vol. 101, no 4, 731-734 p.Article in journal (Refereed) Published
Abstract [en]

Making use of exact and quasistatic expressions for the field in near-field imaging of a point dipole by a thin silver slab, we calculate the point-spread function and the associated image resolution. We show that the resolution, which depends on the silver slab thickness and the dipole orientation, generally is better than the conventional diffraction limit and can be as high as lambda/8. The results substantially agree with recent theoretical and experimental studies on 2D objects.

Place, publisher, year, edition, pages
2010. Vol. 101, no 4, 731-734 p.
Keyword [en]
negative-index metamaterial, diffraction limit, refractive-index
National Category
Other Engineering and Technologies
URN: urn:nbn:se:kth:diva-27962DOI: 10.1007/s00340-010-4124-5ISI: 000284771400004ScopusID: 2-s2.0-78650174107OAI: diva2:383046
QC 20110104Available from: 2011-01-04 Created: 2011-01-03 Last updated: 2011-01-04Bibliographically approved

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Friberg, Ari. T.
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Microelectronics and Information Technology, IMIT
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