Coherence measurements with the two-photon Michelson interferometer

Lopez-Mago, Dorilian; Novotny, Lukas

doi:10.1103/physreva.86.023820

Cited by 22 publications

(13 citation statements)

References 29 publications

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“…2. Due to the wide bandwidth =(BW 10 nm) of SPDC-based photon pairs, the HOM dip should satisfy the nondegenerate case of incoherence optics regardless of the pumping method 5,6,[14][15][16][17][18][19][20][21][22][27][28][29] . However, each down-converted photon pair is always phase matched via χ − (2) SPDC nonlinear process at coincidence detection, = + k k k P S I and ω ω ω = + P S I , where k j and ω j are, respectively, the wave vector and angular frequency of photon j.…”

Section: Resultsmentioning

confidence: 99%

“…, limiting the HOM dip. In the area of quantum information, the photon bunching phenomenon in a beam splitter has been intensively studied in pursuit of a basic understanding of nonclassical physics using antibunched single photons [14][15][16][17][18][19][20][21][22] . According to Heisenberg's uncertainty principle, a single photon can be described as a fixed energy object with no particular phase, comparable to an unlocalized electron in Bohr's atomic model: Copenhagen interpretation.…”

Section: The Origin Of Anticorrelation For Photon Bunching On a Beam mentioning

confidence: 99%

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The origin of anticorrelation for photon bunching on a beam splitter

Ham

2020

Sci Rep

110

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The Copenhagen interpretation, in which the core concepts are Heisenberg’s uncertainty principle and nonlocal EPR correlation, has been long discussed. Second-order anticorrelation in a beam splitter represents the origin of these phenomena and cannot be achieved classically. Here, the anticorrelation of nonclassicality in a beam splitter is interpreted using the concept of coherence. Unlike the common understanding of photons having a particle nature, anticorrelation is rooted in the wave nature of coherence optics, described by coherence optics, wherein quantum superposition between two input fields plays a key role. This interpretation may pose fundamental questions about the nature of nonclassicality and pave a road to coherence-based quantum information.

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Section: Resultsmentioning

confidence: 99%

Section: The Origin Of Anticorrelation For Photon Bunching On a Beam mentioning

confidence: 99%

The origin of anticorrelation for photon bunching on a beam splitter

Ham

2020

Sci Rep

110

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show abstract

“…Current advances in photodetection technologies and the development of highly efficient SPDC sources have revived the idea of developing efficient QOCT systems [12][13][14]. A Michelson version of QOCT has been shown to represent a functional and robust configuration, which can benefit from the incorporation of novel photon-number-resolving detectors [15], and which is amenable to miniaturization [16,17]. A recent full-field QOCT implementation has been demonstrated using an intensified CCD camera [18].…”

Section: Introductionmentioning

confidence: 99%

Spectrally resolved Hong–Ou–Mandel interferometry for quantum-optical coherence tomography

et al. 2020

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In this paper, we revisit the well-known Hong-Ou-Mandel (HOM) effect in which two photons, which meet at a beamsplitter, can interfere destructively, leading to null in coincidence counts. In a standard HOM measurement, the coincidence counts across the two output ports of the beamsplitter are monitored as the temporal delay between the two photons prior to the beamsplitter is varied, resulting in the wellknown HOM dip. We show, both theoretically and experimentally, that by leaving the delay fixed at a particular value while relying on spectrally-resolved coincidence photon-counting, we can reconstruct the HOM dip, which would have been obtained through a standard delay-scanning, non-spectrally-resolved HOM measurement. We show that our numerical reconstruction procedure exhibits a novel dispersion cancellation effects, to all orders. We discuss how our present work can lead to a drastic reduction in the time required to acquire a HOM interferogram, and specifically discuss how this could be of particular importance for the implementation of efficient quantum-optical coherence tomography devices.

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“…Since the early 1990s, various apparatus for two-photon interference experiments have been utilized to investigate two-photon wavepacket interference phenomena, e.g., the Mach-Zehnder interferometer (MZI) 2 17 19 21 23 24 and the Michelson interferometer (MI) 25 26 27 . The majority of the experiments involving these devices were performed using two identical photons as the input state, where the two photons simultaneously entered the input port of an interferometer.…”

mentioning

confidence: 99%

Two-photon interference of temporally separated photons

Kim

Lee

Moon

2016

Sci Rep

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We present experimental demonstrations of two-photon interference involving temporally separated photons within two types of interferometers: a Mach-Zehnder interferometer and a polarization-based Michelson interferometer. The two-photon states are probabilistically prepared in a symmetrically superposed state within the two interferometer arms by introducing a large time delay between two input photons; this state is composed of two temporally separated photons, which are in two different or the same spatial modes. We then observe two-photon interference fringes involving both the Hong-Ou-Mandel interference effect and the interference of path-entangled two-photon states simultaneously in a single interferometric setup. The observed two-photon interference fringes provide simultaneous observation of the interferometric properties of the single-photon and two-photon wavepackets. The observations can also facilitate a more comprehensive understanding of the origins of the interference phenomena arising from spatially bunched/anti-bunched two-photon states comprised of two temporally separated photons within the interferometer arms.

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Coherence measurements with the two-photon Michelson interferometer

Cited by 22 publications

References 29 publications

The origin of anticorrelation for photon bunching on a beam splitter

The origin of anticorrelation for photon bunching on a beam splitter

Spectrally resolved Hong–Ou–Mandel interferometry for quantum-optical coherence tomography

Two-photon interference of temporally separated photons

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