Subwavelength Position Sensing Using Nonlinear Feedback and Wave Chaos

doi:DOI:10.1103/PhysRevLett.107.254103

dc.contributor.author	Cohen, Seth
dc.contributor.author	Cavalcante, Hugo
dc.contributor.author	Gauthier, Daniel J.
dc.date.accessioned	2012-08-16T16:43:37Z
dc.date.available	2012-08-16T16:43:37Z
dc.date.issued	2011-12-16
dc.identifier.citation	Cohen, S. D., H. L. D. de S. Cavalcante, et al. (2011). "Subwavelength Position Sensing Using Nonlinear Feedback and Wave Chaos." Physical Review Letters 107(25): 254103.	en_US
dc.identifier.uri	http://hdl.handle.net/10161/5742
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	DOI:10.1103/PhysRevLett.107.254103	en_US
dc.subject	physics	en_US
dc.subject	subwavelength	en_US
dc.subject	resolution	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	en_US