Ultimate Quantum Sensitivity in the Estimation of the Delay between two Interfering Photons through Frequency-Resolving Sampling

Triggiani, Danilo; Psaroudis, Giorgos; Tamma, Vincenzo

doi:10.1103/physrevapplied.19.044068

Cited by 10 publications

(3 citation statements)

References 37 publications

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“…Over time, thanks to technology advancements [ 10 , 11 ] in single photon detection [ 12 , 13 ], light engineering [ 14 , 15 , 16 ], and innovative schemes [ 17 , 18 , 19 , 20 , 21 ], HOM-based interferometry has seen a constant improvement in its performance, broadening even further the horizons of its applications.…”

Section: Introductionmentioning

confidence: 99%

Attosecond-Level Delay Sensing via Temporal Quantum Erasing

Sgobba,

Andrisani,

Dello Russo

et al. 2023

Sensors

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Traditional Hong-Ou-Mandel (HOM) interferometry, insensitive to photons phase mismatch, proved to be a rugged single-photon interferometric technique. By introducing a post-beam splitter polarization-dependent delay, it is possible to recover phase-sensitive fringes, obtaining a temporal quantum eraser that maintains the ruggedness of the original HOM with enhanced sensitivity. This setup shows promising applications in biological sensing and optical metrology, where high sensitivity requirements are coupled with the necessity to keep light intensity as low as possible to avoid power-induced degradation. In this paper, we developed a highly sensitive single photon birefringence-induced delay sensor operating in the telecom range (1550 nm). By using a temporal quantum eraser based on common path Hongr-Ou-Mandel Interferometry, we were able to achieve a sensitivity of 4 as for an integration time of 2·104 s.

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Section: Introductionmentioning

confidence: 99%

Attosecond-Level Delay Sensing via Temporal Quantum Erasing

Sgobba,

Andrisani,

Dello Russo

et al. 2023

Sensors

View full text Add to dashboard Cite

show abstract

“…Over the years, advancements in technology, particularly in single-photon detection [11,12], light engineering [13][14][15], and innovative quantum methodologies [16][17][18][19][20], have continuously improved the performances of HOM-based interferometry [21,22], in turn significantly expanding the scope of its applicability. In 2018, for example, Lyons et al [23] proposed a quantum-information-based model that allows us to obtain sensitivities as low as (10 −18 s) in an HOM experiment.…”

Section: Introductionmentioning

confidence: 99%

Photon Phase Delay Sensing with Sub-Attosecond Uncertainty

Sgobba,

Andrisani,

Santamaria Amato

2024

Sensors

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The application of statistical estimation theory to Hong–Ou–Mandel interferometry led to enticing results in terms of the detection limit for photon reciprocal delay and polarisation measurement. In the following paper, a fully fibre-coupled setup operating in the telecom wavelength region proves to achieve, for the first time, in common-path Hong–Ou–Mandel-based interferometry, a detection limit for photon phase delay at the zeptosecond scale. The experimental results are then framed in a theoretical model by calculating the Cramer–Rao bound (CRB) and, after comparison with the obtained experimental results, it is shown that our setup attains the optimal measurement, nearly saturating CRB.

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“…This photon bunching leads to a characteristic “HOM dip” in the photon coincidence counts measured by the second-order correlation function g (2) ( τ ), as a function of the relative delay time, τ . Originally proposed for measuring sub-picosecond time intervals, the use of HOM interferometry for photon time-of-flight sensing has since been adopted for measuring optical delays due to birefringence 21 , and path-delay measurements 22 – 24 with attoseconds time-scale resolution 25 , 26 . Recently, HOM interferometry has been applied to molecular spectroscopy, demonstrating an ability to measure dephasing times on the 100 fs time-scale from an organic dye in solution 27 .…”

Section: Introductionmentioning

confidence: 99%

Fluorescence lifetime Hong-Ou-Mandel sensing

Lyons,

Zickus,

Álvarez-Mendoza

et al. 2023

Nat Commun

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Fluorescence Lifetime Imaging Microscopy in the time domain is typically performed by recording the arrival time of photons either by using electronic time tagging or a gated detector. As such the temporal resolution is limited by the performance of the electronics to 100’s of picoseconds. Here, we demonstrate a fluorescence lifetime measurement technique based on photon-bunching statistics with a resolution that is only dependent on the duration of the reference photon or laser pulse, which can readily reach the 1–0.1 picosecond timescale. A range of fluorescent dyes having lifetimes spanning from 1.6 to 7 picoseconds have been here measured with only ~1 s measurement duration. We corroborate the effectiveness of the technique by measuring the Newtonian viscosity of glycerol/water mixtures by means of a molecular rotor having over an order of magnitude variability in lifetime, thus introducing a new method for contact-free nanorheology. Accessing fluorescence lifetime information at such high temporal resolution opens a doorway for a wide range of fluorescent markers to be adopted for studying yet unexplored fast biological processes, as well as fundamental interactions such as lifetime shortening in resonant plasmonic devices.

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Ultimate Quantum Sensitivity in the Estimation of the Delay between two Interfering Photons through Frequency-Resolving Sampling

Cited by 10 publications

References 37 publications

Attosecond-Level Delay Sensing via Temporal Quantum Erasing

Attosecond-Level Delay Sensing via Temporal Quantum Erasing

Photon Phase Delay Sensing with Sub-Attosecond Uncertainty

Fluorescence lifetime Hong-Ou-Mandel sensing

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