Parallel Quantum-Enhanced Sensing

Mohammadjavad Dowran; Aye L. Win; Umang Jain; Ashok Kumar; Benjamin J. Lawrie; Raphael C. Pooser; Alberto M. Marino

doi:10.1021/acsphotonics.4c00256

Parallel Quantum-Enhanced Sensing

Mohammadjavad Dowran
, Aye L. Win
, Umang Jain
, Ashok Kumar
, Benjamin J. Lawrie
, Raphael C. Pooser
, Alberto M. Marino

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Quantum metrology takes advantage of quantum correlations to enhance the sensitivity of sensors and measurement techniques beyond their fundamental classical limit, given by the shot-noise limit. The use of both temporal and spatial correlations present in quantum states of light can extend quantum-enhanced sensing to a parallel configuration that can simultaneously probe an array of sensors or independently measure multiple parameters. To this end, we use multispatial-mode bright twin beams of light, which are characterized by independent quantum-correlated spatial subregions in addition to quantum temporal correlations, to probe a four-sensor quadrant plasmonic array. We show that it is possible to independently and simultaneously measure local changes in refractive index for all four sensors with a quantum enhancement in sensitivity in the range of 22% to 24% over the corresponding classical configuration. These results provide a first step toward highly parallel spatially resolved quantum-enhanced sensing techniques and pave the way toward more complex quantum sensing and quantum imaging platforms.

Original language	English
Pages (from-to)	3037-3045
Number of pages	9
Journal	ACS Photonics
Volume	11
Issue number	8
DOIs	https://doi.org/10.1021/acsphotonics.4c00256
State	Published - Aug 21 2024

Funding

This work was supported by the W. M. Keck Foundation and by a grant from the National Science Foundation (PHYS-1752938). The plasmonic sensor fabrication was supported in part by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division. The electron beam lithography was supported by the Center for Nanophase Materials Sciences, which is a U.S. Department of Energy Office of Science User Facility. This manuscript was authored in part by UT-Battelle, LLC, under Contract DE-AC05-00OR22725 with the U.S. Department of Energy (DOE). The publisher acknowledges the U.S. Government license to provide public access under the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ).

Keywords

four-wave mixing
parallel sensing
plasmonics
quantum metrology
squeezed light

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10.1021/acsphotonics.4c00256

Cite this

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title = "Parallel Quantum-Enhanced Sensing",

abstract = "Quantum metrology takes advantage of quantum correlations to enhance the sensitivity of sensors and measurement techniques beyond their fundamental classical limit, given by the shot-noise limit. The use of both temporal and spatial correlations present in quantum states of light can extend quantum-enhanced sensing to a parallel configuration that can simultaneously probe an array of sensors or independently measure multiple parameters. To this end, we use multispatial-mode bright twin beams of light, which are characterized by independent quantum-correlated spatial subregions in addition to quantum temporal correlations, to probe a four-sensor quadrant plasmonic array. We show that it is possible to independently and simultaneously measure local changes in refractive index for all four sensors with a quantum enhancement in sensitivity in the range of 22\% to 24\% over the corresponding classical configuration. These results provide a first step toward highly parallel spatially resolved quantum-enhanced sensing techniques and pave the way toward more complex quantum sensing and quantum imaging platforms.",

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AU - Dowran, Mohammadjavad

AU - Win, Aye L.

AU - Jain, Umang

AU - Kumar, Ashok

AU - Lawrie, Benjamin J.

AU - Pooser, Raphael C.

AU - Marino, Alberto M.

PY - 2024/8/21

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N2 - Quantum metrology takes advantage of quantum correlations to enhance the sensitivity of sensors and measurement techniques beyond their fundamental classical limit, given by the shot-noise limit. The use of both temporal and spatial correlations present in quantum states of light can extend quantum-enhanced sensing to a parallel configuration that can simultaneously probe an array of sensors or independently measure multiple parameters. To this end, we use multispatial-mode bright twin beams of light, which are characterized by independent quantum-correlated spatial subregions in addition to quantum temporal correlations, to probe a four-sensor quadrant plasmonic array. We show that it is possible to independently and simultaneously measure local changes in refractive index for all four sensors with a quantum enhancement in sensitivity in the range of 22% to 24% over the corresponding classical configuration. These results provide a first step toward highly parallel spatially resolved quantum-enhanced sensing techniques and pave the way toward more complex quantum sensing and quantum imaging platforms.

AB - Quantum metrology takes advantage of quantum correlations to enhance the sensitivity of sensors and measurement techniques beyond their fundamental classical limit, given by the shot-noise limit. The use of both temporal and spatial correlations present in quantum states of light can extend quantum-enhanced sensing to a parallel configuration that can simultaneously probe an array of sensors or independently measure multiple parameters. To this end, we use multispatial-mode bright twin beams of light, which are characterized by independent quantum-correlated spatial subregions in addition to quantum temporal correlations, to probe a four-sensor quadrant plasmonic array. We show that it is possible to independently and simultaneously measure local changes in refractive index for all four sensors with a quantum enhancement in sensitivity in the range of 22% to 24% over the corresponding classical configuration. These results provide a first step toward highly parallel spatially resolved quantum-enhanced sensing techniques and pave the way toward more complex quantum sensing and quantum imaging platforms.

KW - four-wave mixing

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KW - plasmonics

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KW - squeezed light

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Parallel Quantum-Enhanced Sensing

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