Illustration of the role of multiple scattering in subwavelength imaging from far-field measurements
JOSA A, Vol. 25, Issue 2, pp. 292-303 (2008)
http://dx.doi.org/10.1364/JOSAA.25.000292
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Abstract
Recently it has been proposed that the classical diffraction limit could be overcome by taking into account multiple scattering effects to describe the interaction of a probing wave and the object to be imaged [ Phys. Rev. E 73, 036619 (2006) ]. Here this idea is illustrated by considering two point scatterers spaced much less than a wavelength apart. It is observed that while under the Born approximation the scattered field pattern is similar to that of a monopole source centered between the scatterers, multiple scattering leads to a more complicated pattern. This additional complexity carries information about the subwavelength structure and can lead to superresolution in the presence of large noise levels. Moreover, it is pointed out that the additional information due to multiple scattering is interpreted as a form of coherent noise by inversion algorithms based on the Born approximation.
© 2008 Optical Society of America
OCIS Codes
(030.4280) Coherence and statistical optics : Noise in imaging systems
(040.1240) Detectors : Arrays
(100.3010) Image processing : Image reconstruction techniques
(100.6640) Image processing : Superresolution
(290.4210) Scattering : Multiple scattering
ToC Category:
Image Processing
History
Original Manuscript: September 21, 2007
Revised Manuscript: November 20, 2007
Manuscript Accepted: November 21, 2007
Published: January 10, 2008
Virtual Issues
Vol. 3, Iss. 3 Virtual Journal for Biomedical Optics
Citation
Francesco Simonetti, Matthew Fleming, and Edwin A. Marengo, "Illustration of the role of multiple scattering in subwavelength imaging from far-field measurements," J. Opt. Soc. Am. A 25, 292-303 (2008)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-25-2-292
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