Spontaneous photon-pair generation from a dielectric nanoantenna

Marino, Giuseppe; Solntsev, Alexander S.; Xu, Lei; Gili, Valerio F.; Carletti, Luca; Poddubny, Alexander N.; Rahmani, Mohsen; Smirnova, Daria; Chen, Haitao; Lemaı̂tre, A.; Zhang, Guoquan; Zayats, Anatoly V.; Angelis, Costantino De; Leo, Giuseppe; Sukhorukov, Andrey A.; Neshev, Dragomir N.

doi:10.1364/optica.6.001416

Cited by 121 publications

(125 citation statements)

References 55 publications

(56 reference statements)

Supporting

Mentioning

125

Contrasting

Order By: Relevance

Section: Quantum Metasurface and Photon Sourcementioning

confidence: 99%

“…Recently, based on the quantum‐classical correspondence between the spontaneous parametric downconversion (SPDC) and sum‐frequency generation (SFG) process, [ 126 ] It has shown that the nanoscale generation of two‐photon quantum states at telecommunication wavelengths based on the SPDC process in AlGaAs nanoantennas (see Figure 5e). [ 127 ] Owing to the strong magnetic dipole resonances supported by the nanoantenna at the signal and idler wavelengths, the generated two‐photon pair exhibits strong angular correlations in the space, showing the possibilities of realizing nanoscale quantum‐entangled light sources by employing optical nonlinear nanoantennas. [ 128 ] Dielectric nanoparticles can support high‐quality supercavity mode based on the multipolar effects, such high‐quality mode can further enhance the generation of entangled photon pairs.…”

Section: Quantum Metasurface and Photon Sourcementioning

confidence: 99%

See 1 more Smart Citation

Trends in Quantum Nanophotonics

Huang

Woolley

et al. 2020

Adv Quantum Tech

Self Cite

View full text Add to dashboard Cite

In this review, the nexus of nanophotonics and quantum science is considered. This nexus offers a wealth of applications and novel fundamental effects. Such an interdisciplinary approach may serve as a starting point for developing groundbreaking technologies. Several new directions in quantum nanophotonics are addressed, including strong light-matter coupling, bound states in the continuum, topological photonics, metasurfaces and photon sources, and levitated optomechanics. This review hopefully will foster the enhanced interaction between the nanophotonics and quantum science communities. Such a synergy will lead to the realization of novel communication, sensing, and information processing systems.

show abstract

Section: Quantum Metasurface and Photon Sourcementioning

confidence: 99%

Section: Quantum Metasurface and Photon Sourcementioning

confidence: 99%

Trends in Quantum Nanophotonics

Huang

Woolley

et al. 2020

Adv Quantum Tech

Self Cite

View full text Add to dashboard Cite

show abstract

“…The experimental demonstration of generation of spontaneous photon pairs in nanoscale photonic structures has been recently demonstrated using an AlGaAs disk nanoantenna exhibiting Mie-type resonances at both pump and bi-photon wavelengths [27]. A schematic of the nanoantenna is shown in Fig.…”

Section: Experimental Demonstration Of Photon-pair Generation In Dielmentioning

confidence: 99%

“…The generation of quantum light with nonlinear nanoresonators, acting both as sources of quantum states and nanoantennas shaping the emitted photons, has only been reported last year [27]. Such nanoscale multi-photon quantum sources offer an unexplored avenue for applications of highly indistinguishable and spatially reconfigurable quantum states, through the spatial multiplexing of coupled nanoantennas on metasurfaces.…”

Section: Introductionmentioning

confidence: 99%

Quantum Nonlinear Metasurfaces

Poddubny¹,

Neshev²,

Sukhorukov³

2020

Nonlinear Meta-Optics

Self Cite

View full text Add to dashboard Cite

“…Phase matched SPDC restricts both the choice of non-linear materials and the available states the daughter photons can occupy. This has prompted the search for SPDC where phase matching is absent [9][10][11][12]. Here we register over 1000 photon pairs per second generated in a micrometer-sized SPDC source continuously pumped at a moderate power.…”

mentioning

confidence: 99%

Microscale Generation of Entangled Photons without Momentum Conservation

Okoth¹,

Cavanna²,

Santiago-Cruz³

et al. 2019

Phys. Rev. Lett.

View full text Add to dashboard Cite

Spontaneousparametric down-conversion (SPDC) is a well-developed tool to produce entangled photons for practical applications, such as quantum imaging [1][2][3], quantum key distribution [4,5] and quantum metrology [6,7], as well as for tests of quantum mechanics [8]. So far, SPDC sources have exclusively been used in the phase matched regime: when the emitted daughter photons conserve the momentum of the pump photon. Phase matched SPDC restricts both the choice of non-linear materials and the available states the daughter photons can occupy. This has prompted the search for SPDC where phase matching is absent [9][10][11][12]. Here we register over 1000 photon pairs per second generated in a micrometer-sized SPDC source continuously pumped at a moderate power. This is both the smallest SPDC source reported to date and, due to the relaxed phase matching, an entirely new type of two-photon radiation. Reducing the interaction length and localizing the position of the daughter photons creation leads to a huge uncertainty in their momentum. The uncertain momentum mismatch leads to a frequency-angular spectrum an order of magnitude broader than that of phase matched SPDC. This results in record breaking spatio-temporal correlation widths and huge entanglement. We believe that similar sources can be realized on thinner platforms, not only compounding the aforementioned effects, but also allowing easy integrability on optical chips.For SPDC, the probability of a pump photon, with momentum k p (wavevector k p ), to decay into two daughter photons, signal and idler with momenta k s,i (wavevectors k s,i ), strongly depends on the momentum (wavevector) mismatch ∆k ≡ k s + k i − k p . The allowed mismatch forms an uncertainty relation with the volume over which the non-linear interaction takes place. Its component parallel to the pump, or longitudinal mismatch ∆k || , is restricted by the inverse length of the nonlinear material. The component perpendicular to the pump, or transverse mismatch ∆k ⊥ , is restricted by the inverse non-linear interaction area, which is generally given by the Gaussian profile of the pump beam.In a phase-matched process, ∆k || = 0, the longitu-dinal momentum of the pump photon is conserved by the daughter photons. However, this is a special case and is only satisfied in a few non-linear materials with the appropriate electronic and optical properties. More generally ∆k || = 0, causing pairs to be generated in or out of phase with respect to pairs generated earlier in the non-linear material. The relative phase difference depends on the non-linear interaction length, L. If L is equal to an odd multiple of the so called coherence length, L c = π ∆k || [13], the interference between the emitted pairs is fully constructive leading to a local maximum in the emission probability. At L < L c , the pairs are always generated in phase. Moreover, with small length L, the allowed longitudinal mismatch can be very large, which leads to a very broad spectrum of emitted photons, both in frequency and in angle. F...

show abstract

Spontaneous photon-pair generation from a dielectric nanoantenna

Cited by 121 publications

References 55 publications

Trends in Quantum Nanophotonics

Trends in Quantum Nanophotonics

Quantum Nonlinear Metasurfaces

Microscale Generation of Entangled Photons without Momentum Conservation

Contact Info

Product

Resources

About