Near-field imaging of point dipole with silver superlens
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
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.
negative-index metamaterial, diffraction limit, refractive-index
Other Engineering and Technologies
IdentifiersURN: urn:nbn:se:kth:diva-27962DOI: 10.1007/s00340-010-4124-5ISI: 000284771400004ScopusID: 2-s2.0-78650174107OAI: oai:DiVA.org:kth-27962DiVA: diva2:383046
QC 201101042011-01-042011-01-032011-01-04Bibliographically approved