Deflection measurements with weak values

P. Benjamin Dixon, David J. Starling, Nathan S. Williams, Praveen Vudyasetu, Andrew N. Jordan, John C. Howell

Research output: Contribution to journalConference articlepeer-review


We report on the use of an interferometric weak value technique to amplify small transverse deflections of an optical beam. Our techniques consists of coupling the beam's transverse degrees of freedom to the which-path states of a Sagnac interferometer. The theory for the amplification, including signal to noise ratio considerations, is presented along with the experimental results which are in good agreement. Of particular interest, we measured the angular deflection of a mirror down to 560 femtoradians and showed the signal to noise ratio to be amplified by a factor of 150.

Original languageAmerican English
JournalOptics InfoBase Conference Papers
StatePublished - 2010
Externally publishedYes
EventFrontiers in Optics, FiO 2010 - Rochester, NY, United States
Duration: 24 Oct 201028 Oct 2010


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