Departmental Papers (ESE)


Near-field imaging is a well-established technique in biomedical measurements, since closer to the detail of interest it is possible to resolve subwavelength details otherwise unresolved by regular lenses. A near-field scanning optical microscope (NSOM) tip may indeed overcome the resolution limits of far-field optics, but its proximity inherently perturbs the measurement. Here, we apply the recent concept of a ‘‘cloaked sensor’’ to an NSOM device in collection mode, showing theoretically how a proper plasmonic cover applied to an NSOM tip may drastically improve its overall measurement capabilities.

Document Type

Journal Article

Date of this Version



Suggested Citation:
Alù, A. and N. Engheta. (2010). Cloaked Near-Field Scanning Optical Microscope Tip for Noninvasive Near-Field Imaging." Physical Review Letters. 105, 263906.

© 2010 The American Physical Society



Date Posted: 18 January 2011

This document has been peer reviewed.