Photonic polarization gears for ultra-sensitive angular measurements

Loading...
Thumbnail Image
File version
Author(s)
D'Ambrosio, Vincenzo
Spagnolo, Nicolo
Del Re, Lorenzo
Slussarenko, Sergei
Li, Ying
Kwek, Leong Chuan
Marrucci, Lorenzo
Walborn, Stephen P
Aolita, Leandro
Sciarrino, Fabio
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
2013
Size

1331793 bytes

File type(s)

application/pdf

Location
Abstract

Quantum metrology bears a great promise in enhancing measurement precision, but is unlikely to become practical in the near future. Its concepts can nevertheless inspire classical or hybrid methods of immediate value. Here we demonstrate NOON-like photonic states of m quanta of angular momentum up to m=100, in a setup that acts as a 'photonic gear', converting, for each photon, a mechanical rotation of an angle ? into an amplified rotation of the optical polarization by m?, corresponding to a 'super-resolving' Malus' law. We show that this effect leads to single-photon angular measurements with the same precision of polarization-only quantum strategies with m photons, but robust to photon losses. Moreover, we combine the gear effect with the quantum enhancement due to entanglement, thus exploiting the advantages of both approaches. The high 'gear ratio' m boosts the current state of the art of optical non-contact angular measurements by almost two orders of magnitude.

Journal Title

Nature Communications

Conference Title
Book Title
Edition
Volume

4

Issue
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement

© The Author(s) 2013. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0) License (http://creativecommons.org/licenses/by-nc-nd/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited. You may not alter, transform, or build upon this work.

Item Access Status
Note
Access the data
Related item(s)
Subject

Classical and physical optics

Quantum optics and quantum optomechanics

Persistent link to this record
Citation
Collections