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REVIEW 4 major objections 3 minor 29 references

Waveguide-integrated colour centres in silicon carbide with broadband photonic crystal reflectors for efficient readout

T0 review · 4 major / 3 minor · reviewed 2026-08-03 · deepseek-v4-flash

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Pith's one-line read Waveguide reflectors lift silicon-vacancy centre count rates to the point where optical single-shot spin readout becomes possible.

desk verdict Solid device paper whose measured reflector and count rates are real, but the abstract's >98% single-shot readout claim doesn't survive the paper's own equations. read the letter →

arxiv 2512.20200 v1 pith:7L7B7CIX submitted 2025-12-23 quant-ph

Marcel Krumrein , Julian M. Bopp , Timo Steidl , Wolfgang Knolle , Jawad Ul-Hassan , Vadim Vorobyov , Tim Schröder , Jörg Wrachtrup This is my paper · ORCID
classification quant-ph
keywords siliconcarbidecolourcentresvacanciesphotoniccrystalreflectorwaveguideintegrationsingle-shotreadoutcryogenicspectroscopysaturationintensity
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

The paper sets out to show that a single silicon-vacancy colour centre in a silicon-carbide waveguide can be read out efficiently enough for quantum applications by adding a broadband photonic-crystal reflector to one end. It reports a fabricated reflector that works across about 60 THz with peak reflectance above 80%, and a cryogenic saturation count rate of about 104 kcps in standard scans, rising to about 125 kcps with a charge-resonance check. On that basis it argues that, if the emitter's spectral drift at high power can be stabilised, the device would allow optical single-shot readout of the electron spin with fidelity above 98%. A sympathetic reader would care because direct optical single-shot spin readout is a missing step for silicon-carbide qubits and would benefit from a scalable waveguide platform.

What carries the argument

The load-bearing component is the Dinosaur reflector: a photonic crystal made of corrugated unit cells on a triangular-cross-section waveguide, terminated by a tapered interface of five unit cells whose length and corrugation amplitude adiabatically build up. The taper converts waveguide modes into Bloch modes with low scattering, creating complete bandgaps that reflect both the V2 zero-phonon line and its phonon sideband back toward a single tapered fibre. Because only one end of the waveguide needs to be accessed, the reflector recovers roughly 78% of the photons that two-sided collection would give, making it the efficiency-building block for single-shot readout.

What would settle it

Measure a PLE saturation curve on the same device after applying the proposed stabilisation: if the line still wanders more than a few linewidths at powers near saturation, or if the stabilised saturation count rate drops well below 125 kcps, the >98% single-shot-readout claim would not hold. A simpler check is to attempt the single-shot readout directly and compare the bright-state fidelity to the predicted 98.44%.

Watch

Extended reading notes

Core claim

The central discovery is that a corrugation-based photonic-crystal reflector (a 'Dinosaur' reflector) with a tapered waveguide interface reflects V2 silicon-vacancy emission over both its zero-phonon line and phonon sideband, with a measured spectral operating range of about 59 THz and average reflectance of 64.5%, peaking at 83%. Embedded V2 centres reach saturation intensities of (103.8 ± 4.2) kcps in standard PLE and (124.3 ± 7.2) kcps with charge-resonance-check post-selection—about four to five times brighter than the same emitters under solid immersion lenses. The paper then simulates optical single-shot readout from these count rates, obtaining a bright-state fidelity of 98.44% with o

Load-bearing premise

The >98% single-shot-readout projection rests on the assumption that the V2 emitter's spectral jumps at high excitation power can be eliminated without reducing its count rate—something the paper's own measurements show has not yet been achieved.

Editorial extensions

If this is right

  • A single fibre now collects about 78% of the light that two-ended waveguide collection would provide, without needing two fibres in a cryostat.
  • Reported count rates are four to five times higher than for V2 centres under solid immersion lenses, at comparable cryogenic conditions.
  • If spectral diffusion is suppressed at high power, the device should support optical single-shot readout of the electron spin with >98% fidelity using one nuclear-spin-assisted repetition.
  • The tapered waveguide-reflector interface is essential: without it, measured reflectance barely exceeds 50%, about 20% lower in mean value.
  • The broad 60 THz reflection range covers both the narrow zero-phonon line and the broader phonon sideband, so the full emission spectrum contributes to the count rate.

Reading between the lines

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

  • If spectral stabilisation via surface passivation or electric fields works without dimming the emitter, the same device could deliver direct optical electron-spin readout without needing nuclear-spin assistance; this is an extrapolation, not shown in the paper.
  • Because the reflector is defined by geometry rather than a resonance, the design should scale to other colour centres or wavelengths by rescaling the unit-cell parameters; the paper does not test this.
  • The charge-resonance check discards roughly 69% of the data, so any reduction in spectral drift would translate almost linearly into higher effective readout success rate; this trade-off is implicit in the reported numbers.
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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

4 major / 3 minor

Summary. The paper reports the design, fabrication, and cryogenic characterization of waveguide-integrated silicon-vacancy (V2) color centers in 4H-SiC with corrugation-based 'Dinosaur' photonic crystal reflectors. The fabricated reflectors show a broad spectral operating range of about 59-60 THz with peak reflectance above 80%. The integrated V2 centers are measured via a tapered-waveguide-tapered-fiber interface, yielding saturation intensities of (103.8 ± 4.2) kcps in standard PLE and (124.3 ± 7.2) kcps with a charge-resonance-check post-selection scheme. The paper further presents a theoretical model claiming that these count rates enable optical single-shot readout of the electron spin with >98% fidelity.

Significance. If the device results hold, the work demonstrates a practical route to enhance photon collection from V2 centers in SiC, with a measured count-rate improvement over solid immersion lenses and a recovery of ~78% of ideal two-ended waveguide collection through a single fiber. The experimental methodology is careful and cross-validated (e.g., two independent readout schemes, comparison of simulated and measured reflectance). However, the headline forward-looking claim of >98% single-shot readout fidelity is the main advertised significance, and that claim is internally inconsistent as shown below.

major comments (4)
  1. [Sec. II.E, Eq. (2a)] Equation (2a) is not normalized: summing p(k|b) over k gives ∫_0^T e^{-γt} dt = (1−e^{-γT})/γ, which is not 1 (it has units of time). Therefore p(k|b) is not a valid probability distribution, and the histogram and fidelity derived from it in Fig. 4e are not meaningful. The authors must supply the missing normalization factor or otherwise correct the model.
  2. [Sec. II.E, Table I] Even if Eq. (2a) were normalized, the parameters in Table 1 are inconsistent with the claimed 98.44% fidelity. With λ_b = 105 kcps, a′ = 0.768, γ′ = 2.083/µs, a′′ = 0.232, γ′′ = 0.317/µs, the expected number of bright-state photons in a single readout is λ_b (a′/γ′ + a′′/γ′′) ≈ 0.12. Thus p(0|b) ≈ e^{-0.12} ≈ 0.89, giving a bright-state detection probability of ~11% for one readout and ~21% for the two-readout nuclear-memory scheme (Eq. 4). This contradicts the reported 98.44% and shows that the saturation count rate, which is time-averaged over many bright-dark cycles, cannot be used as the instantaneous bright-state rate in a model with µs-scale decay.
  3. [Sec. II.E vs. Table I] The readout window is inconsistent: the main text and Fig. 4d describe a 100 µs readout window with λ = (10.5 ± 3.2) counts per 100 µs, whereas Table I lists T = 10 µs. Using the 100 µs value as a stable-state count rate (10.5 counts) would yield p(0|b) ≈ e^{-10.5} ≈ 2.8×10^{-5}, close to the claimed fidelity, but this contradicts the explicit bi-exponential decay model and the stated T=10 µs. The authors need to reconcile these numbers and recompute.
  4. [Sec. II.E and Sec. II.D] The forward-looking SSR claim additionally rests on the assumption that 'it is possible to stabilise the PLE transition without diminishing the intensity.' This assumption is directly contradicted by the paper's own data: at 5 nW the resonance jumps several linewidths (Fig. 3b), and at high powers the PLE lines cannot be fitted. No mechanism or reference is given for how stabilization (e.g., surface passivation or electric fields) would preserve the count rate. The claim is therefore speculative even in the idealized calculation.
minor comments (3)
  1. [Supplementary Note 2, Fig. S2] Typo: 'succsess rate' should be 'success rate'.
  2. [Fig. 4e] The simulated SSR histogram does not show the error bars or the underlying parameter uncertainties, making it difficult to assess the robustness of the 98.44% value.
  3. [References [26] and [27]] The text says the SSR framework is 'taken from [26]' and the bi-exponential rates from '[27]', but the manuscript does not state how those results were adapted (e.g., any re-scaling or mapping to the present device parameters). A brief explanation would improve reproducibility.

Circularity Check

0 steps flagged · score 0.0 of 10

No significant circularity: the measured reflector performance and count rates are direct experimental results, and the single-shot-readout estimate is a conditional model using published inputs rather than a quantity fitted to its own conclusion.

full rationale

The central measured claims—reflectance of about 60 THz with peak reflectance above 80% (Sec. II.B) and saturation intensities of (103.8 ± 4.2) kcps and (124.3 ± 7.2) kcps (Secs. II.D and II.E)—are direct experimental results, not derived from the model that predicts single-shot readout. The SSR estimate (Sec. II.E and Supplementary Note II) takes the measured bright-state count rate λ_b = 105 kcps as an input and combines it with decay rates and weights from previously published works (Refs. [26], [27], [7]). Those are external, published data and a published readout framework, not an unverified self-citation chain; using them does not make the predicted fidelity equivalent to the fitted count rate by construction. The paper also explicitly states the idealization: “we assume that it is possible to stabilise the PLE transition without diminishing the intensity” (Sec. II.E), which is a stated limitation of the projection rather than a circular step. A separate correctness issue exists: Eq. (2a) is unnormalized, and the Table I parameters (λ_b = 105 kcps, γ' = 1/0.48 µs−1, γ'' = 1/3.15 µs−1, T = 10 µs) imply a bright-state detection probability of roughly 10%, not the claimed 98.44%, while the main text mentions a 100 µs readout window. This is a mathematical inconsistency in the model, not an input-output circularity, so it does not raise the circularity score. The same-group citations used for the Dinosaur design and the waveguide-fibre interface are load-bearing only for naming and engineering context; the reflector is independently simulated by FEM and measured directly in this work. No prediction in the paper reduces by construction to a fitted parameter or to a self-citation. I therefore find no significant circularity.

Assumptions & free parameters 6 free parameters · 7 assumptions · 0 invented entities

The device geometry is Bayesian-optimized rather than derived; the SSR projection is a forward simulation run on decay parameters fitted in same-group prior work; and the pivotal 'stabilize without losing intensity' premise is an untested ad hoc assumption. No invented physical entities: 'Dinosaur' is a device-geometry name, not a new mediator, force, or particle.

free parameters (6)
  • Dinosaur unit-cell geometry (a4, A4, e, g, δ) = a4=401.3 nm, A4=171.3 nm, e=6, g=60.6 nm, δ=54°
    Bayesian-optimized in JCMsuite to maximize mean reflectance over 290-330 THz (Sec. II.A); the band structure and reflectance claims depend on this choice.
  • Tapered-interface cell sequence (a0..a4, corrugation maxima/minima) = [108.4, 247.2, 299.2, 326.7, 401.3] nm; x+ up to 403.2 nm
    Bayesian optimization outputs; the claimed ~20% reflectance benefit of tapering is conditional on this specific profile (Sec. II.A).
  • CRC post-selection threshold = 5 counts per 20 µs CRC window
    Hand-chosen; controls the trade-off between the 69.1% data discard and the reported on-resonance count rate (Sec. II.E).
  • Saturation intensity Is (PLE and CRC fits) = 103.8 ± 4.2 kcps (PLE); 124.3 ± 7.2 kcps (CRC)
    Fitted to Eq. B1; the abstract's headline count rates come from these fits, not from direct counts.
  • SSR simulation inputs (λb, λd, a', a'', γ', γ'', T) = λb=105 kcps, λd=490 cps, a'=0.768, a''=0.232, γ'=1/0.48 µs⁻¹, γ''=1/3.15 µs⁻¹, T=10 µs
    λb measured at 8 nW; decay parameters fitted from [27] (same group). The 98.44% fidelity output is a function of these values with no error propagation (SI Table I).
  • Baseline two-ended saturation intensity Is,wg = 224.7 ± 8.6 kcps (Krumrein et al., ACS Photonics 2024)
    From prior same-group work [1] on a different sample; SI Eq. 1 assumes equal intrinsic emitter brightness to infer reflector reflectance RV2 = 55.3%.
assumptions (7)
  • standard math Maxwell's equations solved by FEM (JCMsuite) correctly give Bloch band structure and reflectance spectra.
    Sec. II.A; all simulated bandgaps, operating ranges, and reflectance curves rest on this.
  • domain assumption Guided Bloch modes above the light line cannot escape the nanostructure; bandgaps prohibit transmission.
    Sec. II.A; basis for the reflector operating range and the claim that stacked unit cells form a mirror.
  • domain assumption Adiabatic tapering converts waveguide modes to Bloch modes with negligible scattering.
    Sec. II.A, citing [21]; the performance of the tapered waveguide-reflector interface relies on this.
  • domain assumption V2 dipoles (parallel to the c-axis) couple predominantly to the fundamental TE-like band.
    Sec. II.A; justifies using the TE-like bandgap edge as the lower limit of the operating range.
  • domain assumption Bright-to-dark decay is bi-exponential with parameters from [27]; photon statistics are Poissonian.
    Eq. (3) and SI Table I; the SSR fidelity is directly determined by these fitted dynamics.
  • ad hoc to paper The PLE transition can be stabilized at high power without reducing count rate.
    Sec. II.E: 'we assume that it is possible to stabilise the PLE transition without diminishing the intensity'. Untested; the load-bearing premise of the >98% SSR claim.
  • domain assumption The readout model and nuclear-spin-assisted repetition (Eqs. 2-4) from [26] and [7] apply to this device.
    Sec. II.E; the single-shot readout calculation adopts these frameworks wholesale.

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Pith. "Pith review of Waveguide-integrated colour centres in silicon carbide with broadband photonic crystal reflectors for efficient readout." pith.science (2026). https://pith.science/paper/7L7B7CIX

@misc{pith2026251220200,
  author       = {Pith},
  title        = {Pith review of: Waveguide-integrated colour centres in silicon carbide with broadband photonic crystal reflectors for efficient readout},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/7L7B7CIX}},
  note         = {Machine review of arXiv:2512.20200}
}
read the original abstract

Spin-active colour centres in 4H silicon carbide are promising candidates as building blocks for quantum information applications. To increase the photon count rate of the emitters at low temperatures, the colour centres must be integrated into nanophotonic structures and characterised under cryogenic conditions. Here, we design and fabricate waveguide structures attached with an efficient Dinosaur photonic crystal reflector at one side. The devices show broadband reflection over a range of 60 THz with a peak reflectance above 80 %. Additionally, colour centres were integrated into these structures and characterised at cryogenic conditions. The emission was collected by a tapered-waveguide-tapered-fibre interface. Although the spectral stability of the emitters must be further improved for high excitation powers, the saturation intensity in standard PLE measurements is about 104 kcps. The count rate can be further improved to about 125 kcps with a charge-resonance check measurement scheme. To highlight the relevance of our devices, we theoretically show that these count rates enable optical single-shot readout with a fidelity exceeding 98 %.

Figures

Figures reproduced from arXiv: 2512.20200 by the authors.

Figure 1
Figure 1. FIG. 1. Illustration and simulations of the Dinosaur reflector. (a) PhC reflector with attached waveguide section and a [PITH_FULL_IMAGE:figures/full_fig_p003_1.png] view at source ↗
Figure 2
Figure 2. FIG. 2. Characterisation of fabricated reflector structures. (a) SEM image of a fabricated reflector. On the left side, the [PITH_FULL_IMAGE:figures/full_fig_p004_2.png] view at source ↗
Figure 3
Figure 3. FIG. 3. ODMR spectrum and PLE measurements of a V2 [PITH_FULL_IMAGE:figures/full_fig_p006_3.png] view at source ↗
Figures from the paper (1 more)
Figure 4
Figure 4. Figure 4: FIG. 4. Saturation curve and charge-resonance check measurements. (a) Saturation curve measured by two different methods. [PITH_FULL_IMAGE:figures/full_fig_p007_4.png]

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Works this paper leans on

29 extracted references · 2 canonical work pages

  1. [1]

    Castelletto and A

    S. Castelletto and A. Boretti, Silicon carbide color centers for quantum applications, Journal of Physics: Photonics 2, 022001 (2020)

    2020

  2. [2]

    Castelletto, A

    S. Castelletto, A. Peruzzo, C. Bonato, B. C. Johnson, M. Radulaski, H. Ou, F. Kaiser, and J. Wrachtrup, Sili- con carbide photonics bridging quantum technology, ACS photonics 9, 1434 (2022)

    2022

  3. [3]

    Widmann, S.-Y

    M. Widmann, S.-Y. Lee, T. Rendler, N. T. Son, H. Fedder, S. Paik, L.-P. Yang, N. Zhao, S. Yang, I. Booker, A. Denisenko, M. Jamali, S. A. Momen- zadeh, I. Gerhardt, T. Ohshima, A. Gali, E. Janzén, and J. Wrachtrup, Coherent control of single spins in silicon carbide at room temperature, Nature Materials 14, 164 (2015)

    2015

  4. [4]

    Simin, H

    D. Simin, H. Kraus, A. Sperlich, T. Ohshima, G. V. As- takhov, and V. Dyakonov, Locking of electron spin co- herence above 20 ms in natural silicon carbide, Physical Review B 95, 161201(R) (2017)

    2017

  5. [5]

    Udvarhelyi, G

    P. Udvarhelyi, G. Thiering, N. Morioka, C. Babin, F. Kaiser, D. Lukin, T. Ohshima, J. Ul-Hassan, N. T. Son, J. Vučković, J. Wrachtrup, and A. Gali, Vibronic states and their effect on the temperature and strain de- pendence of silicon-vacancy qubits in 4H - SiC, Physical Review Applied 13, 054017 (2020)

    2020

  6. [6]

    Lai, R.-Z

    X.-Y. Lai, R.-Z. Fang, T. Li, R.-Z. Su, J. Huang, H. Li, L.-X. You, X.-H. Bao, and J.-W. Pan, Single-shot readout of a nuclear spin in silicon carbide, Physical review letters 132, 180803 (2024)

    2024

  7. [7]

    Hesselmeier, P

    E. Hesselmeier, P. Kuna, W. Knolle, F. Kaiser, N. T. Son, M. Ghezellou, J. Ul-Hassan, V. Vorobyov, and J. Wrachtrup, High-fidelity optical readout of a nuclear- spin qubit in silicon carbide, Physical review letters 132, 180804 (2024)

    2024

  8. [8]

    Sardi, T

    F. Sardi, T. Kornher, M. Widmann, R. Kolesov, F. Schiller, T. Reindl, M. Hagel, and J. Wrachtrup, Scal- able production of solid-immersion lenses for quantum emitters in silicon carbide, Applied Physics Letters 117, 022105 (2020)

    2020

Show all 29 references
  1. [9]

    Bekker, M

    C. Bekker, M. J. Arshad, P. Cilibrizzi, C. Nikolatos, P. Lomax, G. S. Wood, R. Cheung, W. Knolle, N. Ross, B. Gerardot, and C. Bonato, Scalable fabrication of hemi- spherical solid immersion lenses in silicon carbide through grayscale hard-mask lithography, Applied Physics Let...

    2023

  2. [10]

    Radulaski, M

    M. Radulaski, M. Widmann, M. Niethammer, J. L. Zhang, S.-Y. Lee, T. Rendler, K. G. Lagoudakis, N. T. Son, E. Janzén, T. Ohshima, J. Wrachtrup, and J. Vučković, Scalable quantum photonics with single color centers in silicon carbide, Nano letters 17, 1782 (2017)

    2017

  3. [11]

    Körber, J

    J. Körber, J. Heiler, P. Fuchs, P. Flad, E. Hesselmeier, P. Kuna, J. Ul-Hassan, W. Knolle, C. Becher, F. Kaiser, and J. Wrachtrup, Fluorescence enhancement of single V2 centers in a 4H-SiC cavity antenna, Nano letters 24, 9289 (2024)

    2024

  4. [12]

    Hessenauer, J

    J. Hessenauer, J. Körber, M. Ghezellou, J. Ul-Hassan, G. V. Astakhov, W. Knolle, J. Wrachtrup, and D. Hunger, Cavity enhancement of V2 centers in 4H- SiC with a fiber-based Fabry–Perot microcavity, Optica Quantum 3, 175 (2025)

    2025

  5. [13]

    Krumrein, R

    M. Krumrein, R. Nold, F. Davidson-Marquis, A. Bouamra, L. Niechziol, T. Steidl, R. Peng, J. Körber, 10 R. Stöhr, N. Gross, J. H. Smet, J. Ul-Hassan, P. Ud- varhelyi, A. Gali, F. Kaiser, and J. Wrachtrup, Precise characterization of a waveguide fiber interface in silicon carbide...

    2024

  6. [14]

    M. J. Burek, C. Meuwly, R. E. Evans, M. K. Bhaskar, A. Sipahigil, S. Meesala, B. Machielse, D. D. Sukachev, C. T. Nguyen, J. L. Pacheco, E. Bielejec, M. D. Lukin, and M. Lončar, Fiber-coupled diamond quan- tum nanophotonic interface, Physical Review Applied 8, 024026 (2017)

    2017

  7. [15]

    Majety, S

    S. Majety, S. Strohauer, P. Saha, F. Wietschorke, J. J. Finley, K. Müller, and M. Radulaski, Triangular quan- tum photonic devices with integrated detectors in silicon carbide, Materials for Quantum Technology 3, 015004 (2023)

    2023

  8. [16]

    J. M. Bopp, L. Valerius, and T. Schröder, Dinosaur pho- tonic crystal cavity interfaces for color center coupling to triangular nanostructures, arXiv quant-ph , 2510.26335 (2025)

    2025

  9. [17]

    J. M. Bopp, M. Plock, T. Turan, G. Pieplow, S. Burger, and T. Schröder, ‘Sawfish’ photonic crystal cavity for near–unity emitter–to–fiber interfacing in quantum network applications, Advanced Optical Materials 12, 2301286 (2024)

    2024

  10. [18]

    Pregnolato, M

    T. Pregnolato, M. E. Stucki, J. M. Bopp, M. H. v. d. Ho- even, A. Gokhale, O. Krüger, and T. Schröder, Fabrica- tion of Sawfish photonic crystal cavities in bulk diamond, APL Photonics 9, 036105 (2024)

    2024

  11. [19]

    Palamaru and P

    M. Palamaru and P. Lalanne, Photonic crystal waveg- uides: Out-of-plane losses and adiabatic modal conver- sion, Applied Physics Letters 78, 1466 (2001)

    2001

  12. [20]

    software

    JCMwave GmbH, Bolivarallee 22, 14050 Berlin, Ger- many, JCMsuite, comp. software

  13. [21]

    Sauvan, G

    C. Sauvan, G. Lecamp, P. Lalanne, and J. Hugonin, Modal-reflectivity enhancement by geometry tuning in photonic crystal microcavities, Optics Express 13, 245 (2005)

    2005

  14. [22]

    S. Y. Lin and G. Arjavalingam, Tunneling of electromag- netic waves in two-dimensional photonic crystals, Optics Letters 18, 1666 (1993)

    1993

  15. [23]

    Orphal-Kobin, K

    L. Orphal-Kobin, K. Unterguggenberger, T. Pregno- lato, N. Kemf, M. Matalla, R.-S. Unger, I. Os- termay, G. Pieplow, and T. Schröder, Optically co- herent nitrogen-vacancy defect centers in diamond nanostructures, Physical Review X 13, 10.1103/Phys- RevX.13.011042 (2023)

    2023 doi

  16. [24]

    Steidl, P

    T. Steidl, P. Kuna, E. Hesselmeier-Hüttmann, Di Liu, R. Stöhr, W. Knolle, M. Ghezellou, J. Ul- Hassan, M. Schober, M. Bockstedte, G. Bian, A. Gali, V. Vorobyov, and J. Wrachtrup, Single V2 defect in 4h silicon carbide Schottky diode at low temperature, Na- ture communications ...

    2025

  17. [25]

    Scheller, F

    D. Scheller, F. Hrunski, J. H. Schwarberg, W. Knolle, Ö. Soykal, P. Udvarhelyi, P. Narang, H. B. Weber, M. Hollendonner, and R. Nagy, Quantum-enhanced elec- tric field mapping within semiconductor devices, Physical Review Applied 24, 014036 (2025)

    2025

  18. [26]

    Zahedian, M

    M. Zahedian, M. Keller, M. Kwon, J. Javadzade, J. Meinel, V. Vorobyov, and J. Wrachtrup, On read- out and initialisation fidelity by finite demolition sin- gle shot readout, Quantum Science and Technology 9, 10.1088/2058-9565/ad133f (2024)

    doi

  19. [28]

    Krumrein, R

    M. Krumrein, R. Nold, F. Davidson-Marquis, A. Bouamra, L. Niechziol, T. Steidl, R. Peng, J. Körber, R. Stöhr, N. Gross, J. H. Smet, J. Ul-Hassan, P. Udvarhelyi, A. Gali, F. Kaiser, and J. Wrachtrup, Precise characterization of a waveguide fiber interface in silicon carbide, ACS...

    2024

  20. [29]

    Ö. O. Soykal and T. L. Reinecke, Quantum metrology with a single spin-3/2 defect in silicon carbide, Physical Review B 95, 10.1103/PhysRevB.95.081405 (2017)

    2017 doi

  21. [30]

    Kaiser, V

    Di Liu, F. Kaiser, V. Bushmakin, E. Hesselmeier, T. Steidl, T. Ohshima, N. T. Son, J. Ul-Hassan, Ö. O. Soykal, and J. Wrachtrup, The silicon vacancy centers in SiC: determination of intrinsic spin dynamics for integrated quantum photonics, npj Quantum Information 10, 10.1038/s...

    2024 doi

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