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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 16 — Jun. 1, 2012
  • pp: 3364–3369

Weak value amplification of an optical Faraday differential refraction effect

A. D. Parks and S. E. Spence  »View Author Affiliations

Applied Optics, Vol. 51, Issue 16, pp. 3364-3369 (2012)

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In the presence of a longitudinal magnetic field B , a beam of linearly polarized light incident from a Faraday medium of Verdet constant V refracts at its interface with a medium of negligible Verdet constant and emerges as two opposite circularly polarized beams that are separated by a small divergence angle δ that is proportional to the product B V . Judicious postselection of the polarization state of the emergent light can be used to amplify the measured value of δ by several orders of magnitude. This technique makes it possible to optically measure either very small V values when B is known or small magnetic fields when V is known.

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.5710) Instrumentation, measurement, and metrology : Refraction
(260.1440) Physical optics : Birefringence
(270.0270) Quantum optics : Quantum optics
(270.1670) Quantum optics : Coherent optical effects
(160.1585) Materials : Chiral media

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: December 20, 2011
Manuscript Accepted: February 7, 2012
Published: May 30, 2012

A. D. Parks and S. E. Spence, "Weak value amplification of an optical Faraday differential refraction effect," Appl. Opt. 51, 3364-3369 (2012)

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