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Proceedings Paper

Versatile super-sensitive metrology using induced coherence (Conference Presentation)
Author(s): William N. Plick; Nathaniel R. Miller; Sven Ramelow

Paper Abstract

We theoretically analyze the phase sensitivity of the Induced-Coherence Interferometer, including the case where the sensitivity is "boosted" into the bright input regime with coherent-light seeding. We find scaling which reaches below the shot noise limit, even when seeding the spatial mode which does not interact with the sample - or when seeding the undetected mode. Furthermore, the setup allows use of subtracted intensity measurements, instead of direct or homodyne measurements - a significant practical advantage. Bright, super-sensitive phase estimation of an object with different light fields for interaction and detection is possible.

Paper Details

Date Published: 10 March 2020
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Proc. SPIE 11295, Advanced Optical Techniques for Quantum Information, Sensing, and Metrology, 112950S (10 March 2020);
Show Author Affiliations
William N. Plick, Univ. of Dayton (United States)
Nathaniel R. Miller, Louisiana State Univ. (United States)
Sven Ramelow, Humboldt-Univ. zu Berlin (Germany)


Published in SPIE Proceedings Vol. 11295:
Advanced Optical Techniques for Quantum Information, Sensing, and Metrology
Philip R. Hemmer; Alan L. Migdall; Zameer Ul Hasan, Editor(s)

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