Show simple item record Cohen, Seth D. Cavalcante, Hugo Gauthier, Daniel J. 2012-02-13T14:40:26Z 2012-02-13T14:40:26Z 2011-12-16
dc.description.abstract We demonstrate a position-sensing technique that relies on the inherent sensitivity of chaos, where we illuminate a subwavelength object with a complex structured radio-frequency field generated using wave chaos and nonlinear feedback. We operate the system in a quasiperiodic state and analyze changes in the frequency content of the scalar voltage signal in the feedback loop. This allows us to extract the object’s position with a one-dimensional resolution of =10 000 and a two-dimensional resolution of =300, where is the shortest wavelength of the illuminating source. en_US
dc.language.iso en_US en_US
dc.publisher American Physical Society en_US
dc.relation.isversionof 10.1103/PhysRevLett.107.254103 en_US
dc.title Subwavelength Position Sensing Using Nonlinear Feedback and Wave Chaos en_US
dc.type Article en_US
duke.description.endpage 254103-5 en_US
duke.description.issue 25 en_US
duke.description.startpage 254103-1 en_US
duke.description.volume 107 en_US
dc.relation.journal Physical Review Letters

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