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Enhanced photon-pair generation from a van der Waals metasurface

T0 review · 2 major / 5 minor · reviewed 2026-08-15 · deepseek-v4-flash

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Pith's one-line read This paper reports the first demonstration of photon-pair generation by spontaneous parametric downconversion from a van der Waals metasurface made of 3R-MoS2.

desk verdict First credible SPDC from a vdW metasurface, but the headline 20x enhancement is statistically fragile and needs the raw data and error bars before it should be quoted. read the letter →

arxiv 2507.18994 v1 pith:2MFOOQNK submitted 2025-07-25 physics.optics quant-ph

Tongmiao Fan , Yilin Tang , Shaun Lung , Maximilian Weissflog , Jinyong Ma , Saniya Shinde , Sina Saravi , Mudassar Nauman
show 6 more authors
Wenkai Yang Hao Qin Shuyao Qiu Andrey A. Sukhorukov Yuerui Lu Frank Setzpfandt
This is my paper · ORCID
classification physics.opticsquant-ph
keywords spontaneousparametricdownconversionvanderWaalsmetasurface3R-MoS2quasi-boundstateinthecontinuumphotonpairsquantumlightsourcetelecomwavelength
verification ladder T0 review T1 audit T2 compute T3 formal

The pith

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The reading

This paper reports the first demonstration of spontaneous parametric downconversion (SPDC) from a metasurface made of the van der Waals crystal 3R-MoS2. SPDC is the process by which one pump photon splits into a correlated pair of lower-energy photons inside a nonlinear material, and it is the standard way to make quantum photon pairs. By patterning a 222-nm film of 3R-MoS2 into crescent-shaped resonators that support a quasi-bound state in the continuum with quality factor around 120, the authors raise the photon-pair rate by a factor of 20 compared with the same material left as an unstructured film. They also show that the resonance narrows the emitted spectrum, flattens the angular emission, and forces the pairs into a single polarization state. A sympathetic reader would take this as evidence that van der Waals crystals can be turned into compact, chip-compatible quantum light sources at telecom wavelengths.

What carries the argument

The load-bearing element is the quasi-bound state in the continuum (qBIC) supported by the symmetry-broken crescent-shaped nanoresonators. A bound state in the continuum is a mode that remains localized even though its frequency lies above the light line; breaking the in-plane inversion symmetry weakly couples this mode to free radiation, producing a narrow resonance with $Q\approx120$ at 1540 nm. The resonance concentrates the pump field inside the 3R-MoS2, with simulated intensity enhancement up to $4.5\times10^{3}$, and because SPDC scales with the local field intensity, this boosts the pair-generation rate. The material side is the non-centrosymmetric 3R stacking of MoS2, whose susceptibility components $\chi^{(2)}_{yyy}=-\chi^{(2)}_{yxx}=-\chi^{(2)}_{xxy}=-\chi^{(2)}_{xyx}$ allow a y-polarized pump to down-convert into y-polarized pairs; the resonant density of states then selects the $|VV\rangle$ channel. The analysis uses the quantum-classical correspondence between SPDC and sum-frequency generation to predict the emission pattern.

What would settle it

With the pump blocked and with the pump on, count coincidences from the unstructured film and the metasurface under identical detection conditions and integration time; if the blocked-pump rate approaches the film's apparent rate of roughly 0.4 counts per minute, the 20-fold claim is not supportable. A complementary check is to compare the film's measured rate with the rate predicted from the known $\chi^{(2)}$ and thickness of 3R-MoS2.

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Extended reading notes

Core claim

The central claim is that a resonant metasurface etched from 3R-MoS2 generates quantum-correlated photon pairs by SPDC and does so far more efficiently than the unpatterned material. The device is a square lattice of crescent-shaped nanoresonators with 790 nm period and 222 nm thickness, supporting a quasi-bound state in the continuum at 1540 nm with $Q\approx120$; when pumped at 770 nm with 12 mW, the measured coincidence rate is about 8 counts per minute, roughly 20 times the rate of an unstructured film under the same conditions. The coincidence-to-accidental ratio is about 32 at this power and exceeds 400 at 0.85 mW, indicating genuine photon-pair correlations. Because the resonance enhances only y-polarized emission, the generated state is co-polarized $|VV\rangle$ rather than the polarization-entangled Bell state that the bare crystal's nonlinear tensor would produce; the biphoton spectrum narrows to about 4 nm, and the emission stays strong over a broad angle. The paper's conclusion is that this constitutes the first quantum light source based on a van der Waals metasurface.

Load-bearing premise

The factor-of-20 enhancement rests on the unstructured film's measured coincidence rate being a genuine, background-free SPDC signal; if that low floor is inflated by detector dark counts or stray light, the enhancement factor would drop.

Editorial extensions

If this is right

  • Van der Waals metasurfaces become a viable platform for compact photon-pair sources at telecom wavelengths, without the phase-matching constraints of bulk crystals.
  • The qBIC resonance narrows the biphoton spectrum to about 4 nm, and detuning the pump produces resolvable nondegenerate signal and idler peaks, a route to spectral entanglement.
  • The flat emission pattern over roughly plus or minus 3 degrees makes the source compatible with quantum imaging and broad-collection configurations.
  • The resonant density of states can override the crystal's nonlinear tensor, so the polarization state of the generated pairs is set by the resonator rather than by the material alone.
  • Within a 100-nm detection bandwidth, the estimated brightness enhancement over the film is around 400, and enlarging the collection angle could raise the measured rate by an order of magnitude.

Reading between the lines

Editorial extensions of the paper, not claims the author makes directly.

  • If the quadratic scaling of SPDC with local field holds, raising the quality factor further or adding a resonance at the pump wavelength should increase the pair rate beyond the demonstrated factor of 20; this is a design extension the paper does not implement.
  • The same crescent-resonator design could be transferred to other non-centrosymmetric 3R-TMDCs or to twisted van der Waals stacks, likely shifting the operating wavelength while keeping the qBIC enhancement.
  • The narrow-band, co-polarized emission suggests the source could serve in frequency-multiplexed quantum communication or as a heralded single-photon source, though the paper does not demonstrate either application.
  • A useful experimental follow-up would be to verify the predicted order-of-magnitude gain from enlarging the collection angle from 0.05 to 0.2 rad per micrometer, which would test the angular simulation and the quantum-classical correspondence used for it.
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Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, and a circularity audit.

Referee Report

2 major / 5 minor

Summary. This manuscript reports the first experimental demonstration of spontaneous parametric down-conversion (SPDC) from a van der Waals metasurface made of 3R-MoS2. The design uses crescent-shaped resonators in a 222-nm-thick 3R-MoS2 film, supporting a quasi-bound state in the continuum (qBIC) at about 1540 nm with a quality factor of about 120. The authors characterize the linear transmission, demonstrate resonant second-harmonic generation, and measure coincidence counts, pump-power dependence, coincidence-to-accidental ratio (CAR), and a narrow biphoton spectrum. They claim an approximately 20-fold increase in SPDC rate relative to an unstructured film and estimate a spectral brightness enhancement of about 400. An SFG-based quantum-classical simulation from Ref. 41 is used to predict the angular emission pattern.

Significance. If correct, this would be the first demonstration of a van der Waals metasurface quantum light source, establishing 3R-MoS2 as a platform for resonant SPDC with potential advantages in integration, nonlinearity, and flat angular emission. The paper's strengths include the multiple independent experimental indicators that the detected photons arise from SPDC: a narrow transmission resonance, resonant SHG enhancement, linear pump-power dependence, CAR scaling with pump power, and a narrow biphoton spectrum. The SFG-based simulation for the emission pattern is grounded in a previously established quantum-classical correspondence, which adds credibility to the angular predictions. However, the headline quantitative claims, namely the 20-fold rate enhancement and the derived 400-fold brightness enhancement, rest on very low coincidence rates and a film baseline whose statistical and systematic uncertainties are not reported in the version under review.

major comments (2)
  1. [Fig. 3(b) and section 'Confirmation of quantum photon pair generation from SPDC'] The central quantitative claim of a 20-fold SPDC enhancement over an unstructured film is based on coincidence rates of about 8 counts/min for the metasurface and, inferred from the stated ratio, roughly 0.4 counts/min for the film. At these rates, Poisson counting statistics alone produce a relative uncertainty of tens of percent on the film rate for integration times of even 10-20 minutes, yet the paper reports no error bars, no integration duration, no dark-count rate, no background or accidental-coincidence subtraction, and no statement of whether the film and metasurface were measured with identical collection area and detection efficiency. The raw data are relegated to Supplementary Sec. S5, which is not included in the arXiv preprint, so the enhancement ratio cannot currently be independently checked. The authors should provide the raw coincidence counts, acquisition times, detector dark and noise contributions, background subtraction procedures, and a full uncertainty analysis, or the 20-fold claim should be revised to a qualitative statement.
  2. [Fig. 4(a) and section 'Quasi-BIC resonance enhanced quantum photon-pair generation'] The estimated spectral brightness enhancement of about 400 is derived by combining the 20-fold integrated-rate enhancement with the ratio of the 100-nm detection bandwidth to the approximately 4-nm resonance linewidth. This derivation assumes that the unstructured film emits a spectrally flat biphoton spectrum over the detection band and that the 20-fold ratio is spectrally independent. The film's biphoton spectrum is not measured or reported, and the film's spectral density is not characterized. The brightness enhancement is therefore a model-dependent estimate rather than a directly measured quantity. The authors should report the measured film biphoton spectrum or provide an explicit derivation with the assumed spectral dependence and the associated uncertainty.
minor comments (5)
  1. [Fig. 1(b) caption and main text after Fig. 1(b)] There is an inconsistency: the main text states that the resonator symmetry axis (x) is aligned with the armchair (AC) direction and the zigzag (ZZ) direction aligns with y, while the Fig. 1(b) caption states that the symmetry axis overlaps with the ZZ axis. This should be reconciled because the polarization analysis depends on the crystal orientation.
  2. [Section 'Quasi-BIC resonance enhanced quantum photon-pair generation', discussion of Fig. 4(c)] The text says the role of the resonance is reinforced by the dependence of the photon-pair rate on the pump power, but Fig. 4(c) and its caption show the rate as a function of pump wavelength. This wording should be corrected.
  3. [Fig. 3 caption and main text] The Fig. 3 caption states a pump of 12.5 mW at 770 nm, while the main text says 12 mW at 2*lambda_pump = 1540 nm. These values should be checked for consistency.
  4. [Throughout the manuscript] The phrase '20-time enhancement' should be written as '20-fold enhancement' for clarity.
  5. [Fig. 4(a) and Fig. 1(e)] The biphoton linewidth of about 4 nm and the linear transmission linewidth are both obtained from Fano fits, but no fit parameters or confidence intervals are reported. Including these values would allow readers to assess the claimed narrowing.

Circularity Check

0 steps flagged · score 0.0 of 10

No significant circularity found; central claims rest on direct measurements.

full rationale

The paper's central claim—a 20-fold enhancement of the SPDC rate for the 3R-MoS2 qBIC metasurface relative to an unpatterned film—is presented as a direct experimental measurement of coincidence counts under the same pump conditions. The abstract and main text report this as a measured ratio, not as the output of a model fitted to the data. The spectral brightness enhancement of approximately 400 is an arithmetic combination of the measured 20-fold rate increase and the measured biphoton linewidth, assuming a flat film spectrum over the detection bandwidth; it is not a self-defined quantity. The SFG-based simulation of the emission pattern uses the standard quantum-classical correspondence and is cited to prior work by the authors (Ref. 41), but the method is parameter-free and is used for extrapolation (e.g., estimating the effect of a larger detection angle), not for deriving the headline enhancement. Similarly, the multipole decomposition from Ref. 33 and the comparison with Ref. 14 are contextual or explanatory, not load-bearing for the core result. The CAR and pump-power dependence provide independent, measurement-based validation of the SPDC nature. While concerns about low count rates and unavailability of raw counts in the arXiv version are legitimate correctness risks, they do not constitute circularity because no derivation step reduces to its own input. No fitted parameter is renamed as a prediction, and no self-citation is used to force the central conclusion.

Assumptions & free parameters 2 free parameters · 4 assumptions · 0 invented entities

The central experimental claims are direct measurements and do not depend on fitted model parameters. The spectral brightness estimate uses a fitted biphoton linewidth, and the angular emission simulation relies on the standard quantum-classical correspondence. The paper introduces no new physical entities.

free parameters (2)
  • Biphoton spectral linewidth (Fano fit) = ~4 nm
    Used to estimate the spectral brightness enhancement of about 400, computed from the 20x rate enhancement and the ratio of the 100-nm detection bandwidth to this fitted linewidth.
  • Transmission resonance linewidth (Fano fit) = ~10 nm at 1540 nm
    Used to claim the quality factor of 120 for the qBIC resonance, which is presented as the mechanism for the enhanced SPDC rate.
assumptions (4)
  • domain assumption The quantum-classical correspondence between SPDC and sum-frequency generation is valid for simulating the SPDC emission pattern.
    Invoked for the COMSOL simulation in Fig. 4(d), relying on Ref 41 from one of the co-author groups; this is a standard tool in nonlinear metasurface quantum optics.
  • domain assumption The 3R-MoS2 nonlinear susceptibility tensor has components chi_yyy = -chi_yxx = -chi_xxy = -chi_xyx, with the crystal axes aligned as described.
    Used to derive the allowed polarization combinations for SPDC and the expected Bell state in a non-resonant film; based on the 3R crystal symmetry and prior literature.
  • domain assumption The unpatterned 3R-MoS2 film emits broadband SPDC across the full 100-nm detection window, so the measured film count rate can serve as a baseline for enhancement.
    Needed to interpret the 20x rate enhancement and the 400x brightness estimate; the paper does not directly show the film's spectrum, only references prior work.
  • ad hoc to paper The qBIC resonance predominantly enhances y-polarized modes, making other polarization components negligible for the generated photon pairs.
    Used to conclude that the metasurface generates a non-entangled |VV> state; this follows from the resonance symmetry but is not directly measured by quantum state tomography.

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Pith. "Pith review of Enhanced photon-pair generation from a van der Waals metasurface." pith.science (2026). https://pith.science/paper/2MFOOQNK

@misc{pith2026250718994,
  author       = {Pith},
  title        = {Pith review of: Enhanced photon-pair generation from a van der Waals metasurface},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/2MFOOQNK}},
  note         = {Machine review of arXiv:2507.18994}
}
read the original abstract

Quantum photon pairs play a pivotal role in many quantum applications. Metasurfaces, two-dimensional arrays of nanostructures, have been studied intensively to enhance and control pair generation via spontaneous parametric downconversion (SPDC). Van der Waals (VdW) layered materials have emerged as promising candidates for nonlinear materials in quantum light sources, owing to their high nonlinear susceptibility and compatibility with on-chip integration. In this work, we present the first demonstration of SPDC from a metasurface composed of the VdW material 3R-MoS2. The nanoresonators support quasi-bound states in the continuum (qBIC) with a quality factor of up to 120, enhancing light-matter interactions. This design achieves a 20-fold increase in SPDC rate compared to an unstructured film and significantly higher brightness, resulting in enhanced quantum photon-pair generation. This work establishes a new approach for utilizing van der Waals metasurfaces in the generation of quantum photon pairs, opening avenues for advanced quantum applications.

Figures

Figures reproduced from arXiv: 2507.18994 by the authors.

Figure 1
Figure 1. a, Sketch of photon-pair generation from a 3R-MoS2 metasurface. The left inset shows the molecular structure of 3R-MoS2, the right inset is an SEM image of the fabricated metasurface. b, The orientation of the crystal structure and the nanoresonators. The sym￾metry axis of the nanoresonators overlaps with the ZZ axis of the 3R-MoS2 crystal. c, The simulated transmission for different incident angles. The angular dis… view at source ↗
Figure 2
Figure 2. a, Schematic diagram of the experimental setup for SHG measurement of 3R-MoS2 qBIC metasurface. In the experiment, the polarization of the incident laser was initially set to be along the armchair direction of the flake and controlled by rotating the λ/2 waveplate. A linear polarizer was used to select the polarization component of the SH radiation parallel to the polarization of the pump beam. b, Measured (dots) co… view at source ↗
Figure 3
Figure 3. Confirmation of quantum photon pair generation from SPDC. a, Ex￾perimental setup for SPDC-related measurements. b, Coincidence histograms for the meta￾surface and unstructured thin film with a pump of 12.5 mW at 770 nm, showing a 20-time enhancement from our metasurface compared to that from the unstructured thin film. c, The measured SPDC rate as a function of pump power and its linear fitting. d, Measured coin￾cid… view at source ↗
Figures from the paper (1 more)
Figure 4
Figure 4. Figure 4: Quasi-BIC resonance enhanced quantum photon-pair generation. a, Mea￾sured spectrum of the generated photon pairs with a 2-km long fiber. The bandwidth of the biphoton spectrum is narrow, which verifies the high quality factor of the resonant mode. The black dashed line…

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Works this paper leans on

24 extracted references · 5 canonical work pages

  1. [1]

    (1) Slussarenko, S.; Pryde, G. J. Photonic quantum information processing: A concise review.Appl. Phys. Rev.2019,6, 041303, DOI:10.1063/1.5115814. (2) Li, X.; Chen, J.; Voss, P.; Sharping, J.; Kumar, P. All-fiber photon-pair source for quantum communications: Improved generation of correlated photons.Optics Express 2004,12, 3737, DOI:10.1364/opex.12.00373...

    arXiv 2019

  2. [2]

    J.; Wee, A

    Pennycook, S. J.; Wee, A. T. S. Ultrathin quantum light source with van der Waals NbOCl2 crystal.Nature2023,613, 53–61, DOI:10.1038/s41586-022-05393-7. (11) Xu, X. Y.; Trovatello, C.; Mooshammer, F.; Shao, Y. M.; Zhang, S.; Yao, K. Y

    doi:10.1038/s41586-022-05393-7

  3. [3]

    N.; Cerullo, G.; Schuck, P

    Basov, D. N.; Cerullo, G.; Schuck, P. J. Towards compact phase-matched and waveg- uided nonlinear optics in atomically layered semiconductors.Nat. Photon.2022,16, 698–707, DOI:10.1038/s41566-022-01053-4. (12) Autere, A.; Jussila, H.; Dai, Y.; Wang, Y.; Lipsanen, H.; Sun, Z. Nonlinear Optics with 2D Layered Materials.Advanced Materials2018,30, 1–24, DOI: 1...

    work page doi:10.1038/s41566-022-01053-4 2022

  4. [4]

    M.; Iwasa, Y.; Lam, P

    Hasan, M. M.; Iwasa, Y.; Lam, P. K.; Lu, Y. Quasi-phase-matching en- abled by van der Waals stacking.Nature Communications2024,15, 1–9, DOI: 10.1038/s41467-024-53472-2. (14) Weissflog, M. A.; Fedotova, A.; Tang, Y. L.; Santos, E. A.; Laudert, B.; Shinde, S

    doi:10.1038/s41467-024-53472-2

  5. [5]

    R.; Eilenberger, F

    Staude, I.; Saravi, S.; Pertsch, T.; Setzpfandt, F.; Lu, Y. R.; Eilenberger, F. A tunable transition metal dichalcogenide entangled photon-pair source.Nat. Commun.2024,15, 7600, DOI:10.1038/s41467-024-51843-3. (15) Feng, J. G.; Wu, Y. K.; Duan, R. H.; Wang, J.; Chen, W. J.; Qin, J. Z.; Liu, Z

    doi:10.1038/s41467-024-51843-3 2024

  6. [6]

    C.; Ren, X

    Guo, G. C.; Ren, X. F.; Qiu, C. W. Polarization-entangled photon-pair source with van der Waals 3R-WS2 crystal.eLight2024,4, 16, DOI:10.1186/s43593-024-00074-6. (16) Kallioniemi, L.; Lyu, X.; He, R. H.; Rasmita, A.; Duan, R. H.; Liu, Z.; Gao, W. B. Van der Waals engineering for quantum-entangled photon generation.Nat. Photon.2025, 19, 142–148, DOI:10.1038...

    doi:10.1186/s43593-024-00074-6

  7. [7]

    A Tunable Entangled Photon-Pair Source based on Van der Waals Insulator.Nat Commun2025,16, 1899, DOI:10.1038/s41467-025-56436-2

    Liu, K.; Gao, W. A Tunable Entangled Photon-Pair Source based on Van der Waals Insulator.Nat Commun2025,16, 1899, DOI:10.1038/s41467-025-56436-2. (18) Marino, G.; Solntsev, A. S.; Xu, L.; Gili, V. F.; Carletti, L.; Poddubny, A. N.; Rah- mani, M.; Smirnova, D. A.; Chen, H.; Lemaître, A.; Zhang, G.; Zayats, A. V.; De Ange- lis, C.; Leo, G.; Sukhorukov, A. A...

    doi:10.1038/s41467-025-56436-2

  8. [8]

    S.; Maeder, A.; Kaufmann, F.; Solntsev, A

    Muller, J. S.; Maeder, A.; Kaufmann, F.; Solntsev, A. S.; Grange, R. Spontaneous para- metric down-conversion in bottom-up grown lithium niobate microcubes.Opt. Mater. Express2022,12, 3696–3704, DOI:10.1364/OME.462981. (21) Zilli, A.; Sultanov, V.; Poloczek, M.; Ferrera, M.; Luan, Y.; Kokkinakis, E. T

    work page doi:10.1364/ome.462981

Show all 24 references
  1. [9]

    V.; Cel- ebrano, M

    Santiago-Cruz, T.; Carletti, L.; Finazzi, M.; Toma, A.; Chekhova, M. V.; Cel- ebrano, M. Spontaneous Parametric Down-Conversion Beaming from a Lithium Niobate Nanostructured Resonator.CLEO Technical Digest2023, FTu4C.8, DOI: 10.1364/CLEO_FS.2023.FTu4C.8. (22) Saerens, G.; Durs...

    doi

  2. [10]

    Background-Free Near-Infrared Biphoton Emission from Single GaAs Nanowires.Nano Lett.2023,23, 3245–3250, DOI: 10.1021/acs.nanolett.3c00026

    Chauvin, N.; Penuelas, J.; Grange, R. Background-Free Near-Infrared Biphoton Emission from Single GaAs Nanowires.Nano Lett.2023,23, 3245–3250, DOI: 10.1021/acs.nanolett.3c00026. (23) Olekhno, N. A.; Petrov, M. I.; Iorsh, I.; Sukhorukov, A. A.; Solntsev, A. S. Generating N00N s...

    2023 doi

  3. [11]

    Nonlinear nanoresonators for Bell state generation.Appl

    Borne, A.; Saravi, S. Nonlinear nanoresonators for Bell state generation.Appl. Phys. Rev.2024,11, 011403, DOI:10.1063/5.0172240. (25) Kuznetsov, A. I.; Brongersma, M. L.; Yao, J.; Chen, M. K.; Levy, U.; Tsai, D. P

    2024 doi

  4. [12]

    Kim, J.; Park, J.; Devlin, R.; Pala, R. A. Roadmap for Optical Metasurfaces.ACS Photonics2024,11, 816–865, DOI:10.1021/acsphotonics.3c00457. (26) Schulz, S. A.; Oulton, R. F.; Kenney, M.; Alù, A.; Staude, I.; Bashiri, A.; Fedorova, Z

    doi

  5. [13]

    B.; Lemmer, U.; Fernandez-Corbaton, I

    Achouri, K.; Evlyukhin, A. B.; Lemmer, U.; Fernandez-Corbaton, I. Roadmap on pho- tonic metasurfaces.Appl. Phys. Lett.2024,124, 260701, DOI:10.1063/5.0204694. (27) Santiago-Cruz, T.; Fedotova, A.; Sultanov, V.; Weissflog, M. A.; Arslan, D

    2024 doi

  6. [14]

    Pho- ton Pairs from Resonant Metasurfaces.Nano Lett.2021,21, 4423–4429, DOI: 10.1021/acs.nanolett.1c01125

    Younesi, M.; Pertsch, T.; Staude, I.; Setzpfandt, F.; Chekhova, M. Pho- ton Pairs from Resonant Metasurfaces.Nano Lett.2021,21, 4423–4429, DOI: 10.1021/acs.nanolett.1c01125. (28) Koshelev, K.; Lepeshov, S.; Liu, M.; Bogdanov, A.; Kivshar, Y. Asymmetric Metasur- faces with High...

    2021 doi

  7. [15]

    Chekhova, M. V. Resonant metasurfaces for generating complex quantum states.Sci- ence2022,377, 991–995, DOI:10.1126/science.abq8684. 18 (30) Ma, J.; Zhang, J.; Jiang, Y.; Fan, T.; Parry, M.; Neshev, D. N.; Sukhorukov, A. A. Po- larization Engineering of Entangled Photons from ...

    doi

  8. [16]

    Yang, Y. M. Polarization-entangled Bell state generation from an epsilon-near-zero metasurface.Sci. Adv.2025,11, eads3576, DOI:10.1126/sciadv.ads3576. (32) Weissflog, M. A.; Ma, J. Y.; Zhang, J. H.; Fan, T. M.; Lung, S.; Pertsch, T.; Ne- shev, D. N.; Saravi, S.; Setzpfandt, F....

    2025 doi

  9. [17]

    E.; Lu, Y.; Neshev, D

    Miroshnichenko, A. E.; Lu, Y.; Neshev, D. Dynamic Control of Nonlinear Emission by Exciton-Photon Coupling in WS2 Metasurfaces.arXiv2025, 2506.01255, DOI: 10.48550/arXiv.2506.01255. (34) Liang, Y.; Tsai, D. P.; Kivshar, Y. From Local to Nonlocal High-Q Plasmonic Metasur- faces...

    doi arXiv

  10. [18]

    Sukhorukov, A. A. Spatially entangled photon pairs from lithium niobate nonlocal metasurfaces.Science Advances2022,8, eabq4240, DOI:10.1126/sciadv.abq4240. (36) Ma, J. Y.; Ren, J. L.; Zhang, J. H.; Meng, J. J.; McManus-Barrett, C.; Crozier, K. B

    doi

  11. [19]

    Sukhorukov, A. A. Quantum imaging using spatially entangled photon pairs from a nonlinear metasurface.eLight2025,5, 2, DOI:10.1186/s43593-024-00080-8. (37) Zielnicki, K.; Garay-Palmett, K.; Cruz-Delgado, D.; Cruz-Ramirez, H.; O’Boyle, M. F

    doi

  12. [20]

    O.; U’Ren, A

    Fang, B.; Lorenz, V. O.; U’Ren, A. B.; Kwiat, P. G. Joint spectral characteriza- 19 tion of photon-pair sources.Journal of Modern Optics2018,65, 1141–1160, DOI: 10.1080/09500340.2018.1437228. (38) Valencia, A.; Chekhova, M. V.; Trifonov, A.; Shih, Y. Entangled two-photon wave ...

    2018

  13. [21]

    V.; Brener, I

    Chekhova, M. V.; Brener, I. Quantum Pair Generation in Nonlinear Metasurfaces with Mixed and Pure Photon Polarizations.Nano Lett.2024,24, 15356–15362, DOI: 10.1021/acs.nanolett.4c04398. (41) Parry, M.; Mazzanti, A.; Poddubny, A.; Della Valle, G.; Neshev, D. N.; Sukho- rukov, A...

    2024 doi

  14. [22]

    N.; Sukhorukov, A

    Neshev, D. N.; Sukhorukov, A. A. Generation of tunable quantum entanglement via nonlinearity symmetry breaking in semiconductor metasurfaces.Sci. Adv.2025,11, adu4133, DOI:10.1126/sciadv.adu4133. (43) Jiang, Y.; Zhang, J.; Ma, J.; Neshev, D. N.; Sukhorukov, A. A. Flatband nonl...

    2025 doi

  15. [23]

    (46) Trovatello, C.; Ferrante, C.; Yang, B

    Fundamentals, Tunability, and Applications.Chemical Reviews2024,124, 1992–2079, DOI:10.1021/acs.chemrev.3c00627. (46) Trovatello, C.; Ferrante, C.; Yang, B. R.; Bajo, J.; Braun, B.; Peng, Z. H.; Xu, X. Y

    1992 doi

  16. [24]

    A.; Marini, A.; Cerullo, G.; Schuck, P

    Rozema, L. A.; Marini, A.; Cerullo, G.; Schuck, P. J. Quasi-phase-matched up- and down-conversion in periodically poled layered semiconductors.Nat. Photon.2025,19, 291–299, DOI:10.1038/s41566-024-01602-z. Supporting Information The Supporting Information is available free of c...

    2025 doi

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