Controlling induced coherence for quantum imaging

Kolobov, Mikhail I.; Giese, Enno; Lemieux, Samuel; Fickler, Robert; Boyd, Robert W.

doi:10.1088/2040-8986/aa64a2

Cited by 44 publications

(45 citation statements)

References 12 publications

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“…We anticipate that our work will trigger more than one creative design in the realization of complex nonlinear interferometers with correlated photons, such as by using mirrors, integrated photonics, or fibre platforms. It is also of interest to investigate this scheme for the high-gain regime of parametric down-conversion 41 . We believe that the presented concept will provide a viable path towards high-performance devices for sensing, metrology, and quantum state engineering.…”

Section: Discussionmentioning

confidence: 99%

Nonlinear interference in crystal superlattices

Paterova¹,

Krivitsky²

2020

Light Sci Appl

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Nonlinear interferometers with correlated photons hold promise to advance optical characterization and metrology techniques by improving their performance and affordability. These interferometers offer subshot noise phase sensitivity and enable measurements in detection-challenging regions using inexpensive and efficient components. The sensitivity of nonlinear interferometers, defined by the ability to measure small shifts of interference fringes, can be significantly enhanced by using multiple nonlinear elements, or crystal superlattices. However, to date, experiments with more than two nonlinear elements have not been realized, thus hindering the potential of nonlinear interferometers. Here, we build a nonlinear interferometer with up to five nonlinear elements, referred to as superlattices, in a highly stable and versatile configuration. We study the modification of the interference pattern for different configurations of the superlattices and perform a proof-of-concept gas sensing experiment with enhanced sensitivity. Our approach offers a viable path towards broader adoption of nonlinear interferometers with correlated photons for imaging, interferometry, and spectroscopy.

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Section: Discussionmentioning

confidence: 99%

Nonlinear interference in crystal superlattices

Paterova¹,

Krivitsky²

2020

Light Sci Appl

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“…However, current setups based on induced coherence are purely academic so far. To be applicable, for example, inside a life science laboratory, the SNR needs to be maximized and system integration is necessary. A more compact and stable configuration is possible by utilizing one crystal only, which is pumped by the same laser from two sides .…”

Section: Interference‐based Quantum Imagingmentioning

confidence: 99%

Perspectives for Applications of Quantum Imaging

Basset

Setzpfandt

Steinlechner

et al. 2019

Laser & Photonics Reviews

126

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Quantum imaging is a multifaceted field of research that promises highly efficient imaging in extreme spectral ranges as well as ultralow‐light microscopy. Since the first proof‐of‐concept experiments over 30 years ago, the field has evolved from highly fascinating academic research to the verge of demonstrating practical technological enhancements in imaging and microscopy. Here, the aim is to give researchers from outside the quantum optical community, in particular those applying imaging technology, an overview of several promising quantum imaging approaches and evaluate both the quantum benefit and the prospects for practical usage in the near future. Several use case scenarios are discussed and a careful analysis of related technology requirements and necessary developments toward practical and commercial application is provided.

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Section: Introductionmentioning

confidence: 99%

“…A 'mind boggling' experiment resulted, that puzzled many physicists. Two decades later, the same ZWM experimental principle triggered a new field of research: quantum imaging [21][22][23][24].The computation of input-output operator relations for optical devices comprising linear optical components is done through a cascade of successive operator (i.e. matrix) transformations.…”

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confidence: 99%

A graphical method in quantum optics

Ataman

2018

J. Phys. Commun.

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In this paper we describe in detail a graphical method allowing the computation of field operator transformations in quantum optics (QO). Its applications include beam splitters (BS), Mach-Zehnder interferometers (MZI), optical resonators (Fabry-Perot etc) as well as non-linear crystals featuring the process of spontaneous parametric down-conversion (SPDC). Its main advantage compared to the traditional computation step-by-step method is its visual and intuitive approach, somehow similar to Feynman's diagrammatic approach in Quantum Field Theory. It also seems adapted to computerbased implementations since calculations mainly consist on complex additions and multiplications, not matrix operations. IntroductionThe quantum optical description [1-3] of optical devices and systems allows one to compute the transformation of classical and non-classical states of light.Linear passive optical devices feature, among others, the beam splitter (BS). In the quantum-optical description [2-5], field operators replace classical fields. Beam splitters have been extensively discussed [6-9], sometimes in a rather mathematical fashion [6,7]. A Mach-Zehnder interferometer (MZI) is a device composed of two beam splitters and two mirrors [2][3][4]. Its popularity has led to its use in countless important experiments [10][11][12][13].Sometimes optical devices contain resonators, the most widely used being the Fabry-Perot cavity [14,15]. It can be described classically or quantum mechanically. Although resonators can change very abruptly their input-output characteristics, they are linear optical devices.Following Burnham and Weinberg's [16] introduction of non-linear crystals featuring SPDC, Mandel's group set a string of experiments that revolutionized the field of quantum optics [17][18][19]. Ou, Wang, Zou and Mandel (OWZM) proposed [20] an experimental setup with two non-linear crystals. What they suggested, and then experimentally confirmed [18], was a 'phase memory' if two crystals are pumped by the same laser.Zou, Wang and Mandel (ZWM) [19] used the same two-crystal setup but made the idler mode of the first crystal pass through the second one, making them indistinguishable. A 'mind boggling' experiment resulted, that puzzled many physicists. Two decades later, the same ZWM experimental principle triggered a new field of research: quantum imaging [21][22][23][24].The computation of input-output operator relations for optical devices comprising linear optical components is done through a cascade of successive operator (i.e. matrix) transformations. The complexity of these operations rapidly grows with the number of inputs/outputs as well as the complexity of system, obscuring the physics at work behind the used models. For example a single Mach-Zehnder interferometer poses no particular calculation problems, however a double Mach-Zehnder [25] or two nested Mach-Zehnder configurations [26,27] demand longer and tedious calculations.The situation gets worse for two or more non-linear crystals. Using a complete Hamiltonian approach ...

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Controlling induced coherence for quantum imaging

Cited by 44 publications

References 12 publications

Nonlinear interference in crystal superlattices

Nonlinear interference in crystal superlattices

Perspectives for Applications of Quantum Imaging

A graphical method in quantum optics

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