Modelling Photon-pair Generation in Nanoresonators Using Quasinormal Mode Expansions

Weissflog, Maximilian A.; Saravi, Sina; Gigli, Carlo; Marino, Giuseppe; Dezert, Romain; Vinel, Vincent; Borne, Adrien; Leo, Giuseppe; Pertsch, Thomas; Setzpfandt, Frank

doi:10.1364/fio.2021.fth6c.5

Cited by 3 publications

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“…But this method is hardly applicable to metasurfaces as it requires a rigorous description of the modal decomposition in terms of multipoles. A more general approach also based on Green’s functions uses the quasi-normal modes formalism to describe nonlinear nanoresonators and has great potential to describe SPDC in metasurfaces …”

Section: Linbo3 Metasurfaces For Nonlinear Quantum and Electro-opticsmentioning

confidence: 99%

“…A more general approach also based on Green's functions uses the quasi-normal modes formalism to describe nonlinear nanoresonators 115 and has great potential to describe SPDC in metasurfaces. 171 Besides photon pairs, also single photons are often used as nonclassical states of light and can profit from the ability of metasurfaces for complex manipulations. Single photons are typically generated by atom-like emitters.…”

Section: Engineering Spontaneous Parametric Down-conversionmentioning

confidence: 99%

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Lithium Niobate Meta-Optics

et al. 2022

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The rapid development of optical metasurfaces, 2D ensembles of engineered nanostructures, is presently underpinning a steady drive toward the miniaturization of many optical functionalities and devices. The list of material platforms for optical metasurfaces is rapidly expanding as, over the past few years, we have witnessed a surge in establishing meta-optical elements from high-index, highly transparent materials with strong nonlinear and electro-optic properties. In particular, crystalline lithium niobate (LiNbO 3 ), already a prime material for integrated photonics, has shown great promise for novel meta-optical components, thanks to its large electro-optical coefficient and secondorder nonlinear response and its broad transparency window ranging from the visible to the mid-infrared. Recent advances in nanofabrication technology have indeed marked a new milestone in the miniaturization of LiNbO 3 platforms, hence enabling the first demonstrations of LiNbO 3 -based metasurfaces. These seminal works set a steppingstone toward the realization of ultrathin monolithic nonlinear light sources, efficient quantum sources of correlated photon pairs, as well as electro-optical modulators. Here, we review these recent advances by providing a perspective on their potential applications and examining the possible setbacks and limitations of these emerging technologies.

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Section: Linbo3 Metasurfaces For Nonlinear Quantum and Electro-opticsmentioning

confidence: 99%

Section: Engineering Spontaneous Parametric Down-conversionmentioning

confidence: 99%

Lithium Niobate Meta-Optics

et al. 2022

Self Cite

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“…Theoretically, it was proposed that nonlinear nanoresonators supporting local resonances can produce polarization-entangled photons over a very large range of emission directions and frequencies, [56] as depicted in Figure 3c. Green's function method [63,64] along with quasi-normal mode theory [65][66][67] was introduced to analyze the SPDC processes in the nanoresonators, offering a useful SPDC toolbox at the nanoscale.…”

Section: Generation Of Quantum Entangled Photon Pairs From Nonlinear ...mentioning

confidence: 99%

“…Reproduced with permission. [ 56 ] Copyright 2024, American Institute of Physics. d) A dielectric nanoantenna made of crystalline AlGaAs nanocylinder was used to experimentally demonstrate enhanced SPDC.…”

Section: Generation Of Quantum Entangled Photon Pairs From Nonlinear ...mentioning

confidence: 99%

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Engineering Quantum Light Sources with Flat Optics

Ma,

Zhang,

Horder

et al. 2024

Advanced Materials

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Quantum light sources are essential building blocks for many quantum technologies, enabling secure communication, powerful computing, precise sensing and imaging. Recent advancements have witnessed a significant shift towards the utilization of “flat” optics with thickness at subwavelength scales for the development of quantum light sources. This approach offers notable advantages over conventional bulky counterparts, including compactness, scalability, and improved efficiency, along with added functionalities. This review focuses on the recent advances in leveraging flat optics to generate quantum light sources. Specifically, we explore the generation of entangled photon pairs through spontaneous parametric down‐conversion in nonlinear metasurfaces, as well as single photon emission from quantum emitters including quantum dots and color centers in 3D and 2D materials. The review covers theoretical principles, fabrication techniques, and properties of these sources, with particular emphasis on the enhanced generation and engineering of quantum light sources using optical resonances supported by nanostructures. We discuss the diverse application range of these sources and highlight the current challenges and perspectives in the field.This article is protected by copyright. All rights reserved

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Quantum metaphotonics: Recent advances and perspective

Zhang,

Kivshar

2024

APL Quantum

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Quantum metaphotonics has emerged as a cutting-edge subfield of meta-optics employing subwavelength resonators and their planar structures, such as metasurfaces, to generate, manipulate, and detect quantum states of light. It holds a great potential for the miniaturization of current bulky quantum optical elements by developing a design of on-chip quantum systems for various applications of quantum technologies. Over the past few years, this field has witnessed a surge of intriguing theoretical ideas, groundbreaking experiments, and novel application proposals. This Perspective aims to summarize the most recent advancements and also provides a perspective on the further progress in this rapidly developing field of research.

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Modelling Photon-pair Generation in Nanoresonators Using Quasinormal Mode Expansions

Abstract: We model SPDC in dielectric nanoresonators based on quasinormal modes (QNMs). Using QNMs, the process reduces to a few interacting modes, providing intuition and enabling the design of nanoscale SPDC sources with complex functionalities.

Cited by 3 publications

References 5 publications

Lithium Niobate Meta-Optics

Lithium Niobate Meta-Optics

Engineering Quantum Light Sources with Flat Optics

Quantum metaphotonics: Recent advances and perspective

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