title: Picoradian deflection measurement with an interferometric quasi-autocollimator using weak value amplification.
abstract: We present an "interferometric quasi-autocollimator" that employs weak value amplification to measure angular deflections of a target mirror. The device has been designed to be insensitive to all translations of the target. We present a conceptual explanation of the amplification effect used by the device. An implementation of the device demonstrates sensitivities better than 10 picoradians per root hertz between 10 and 200 Hz.
authors.affiliation: Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA. mdturner@phys.washington.edu
authors.forename: Matthew D
authors.initials: MD
authors.lastname: Turner
authors.forename: Charles A
authors.initials: CA
authors.lastname: Hagedorn
authors.forename: Stephan
authors.initials: S
authors.lastname: Schlamminger
authors.forename: Jens H
authors.initials: JH
authors.lastname: Gundlach