No photo of Niels Gregersen
  • Ørsteds Plads, 345A, 274

    2800 Kgs. Lyngby

    Denmark

20032021
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Research Output 2005 2019

2019
114 Downloads (Pure)

High-fidelity optical quantum gates based on type-II double quantum dots in a nanowire

Taherkhani, M., Willatzen, M., Denning, E. V., Protsenko, I. E. & Gregersen, N., 2019, In : Physical Review B (Condensed Matter and Materials Physics). 99, 16, 11 p., 165305 .

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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76 Downloads (Pure)

High fidelity optical quantum gates based on type II double quantum dots in a nanowire

Taherkhani, M., Willatzen, M., Denning, E. V., Protsenko, I. E. & Gregersen, N., 2019, (Accepted/In press) In : Physical Review B (Condensed Matter and Materials Physics). 12 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
57 Downloads (Pure)

Modal Method Analysis of Quantum-Dot Nanowires for Single Photon Sources

Gür, U. M., Gregersen, N., Arslanagic, S. & Mattes, M., 2019.

Research output: Contribution to conferencePaperResearchpeer-review

Open Access
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1 Downloads (Pure)

Photonic “hourglass” design for efficient quantum light emission

Østerkryger, A. D., Claudon, J., Gérard, J. M. & Gregersen, N., 2019, In : Optics Letters. 44, 11, p. 2617-2620

Research output: Contribution to journalJournal articleResearchpeer-review

81 Downloads (Pure)

Quantum dots in micropillar cavities for scalable photonic applications

Moczała-Dusanowska, M., Huber, T., Dusanowski, Ł., Gerhardt, S., Jurkat, J., Pfenning, A., Trotta, R., Rastelli, A., Gregersen, N., Schneider, C. & Hofling, S., 2019, Frontiers in Optics 2019. Optical Society of America (OSA), 2 p. FM3D.2

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
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Strain Tunable Single-Photon Source Based on a Quantum Dot–Micropillar System

Moczała-Dusanowska, M., Dusanowski, Ł., Gerhardt, S., He, Y. M., Reindl, M., Rastelli, A., Trotta, R., Gregersen, N., Höfling, S. & Schneider, C., 2019, In : ACS Photonics. 6, p. 2025−2031

Research output: Contribution to journalJournal articleResearchpeer-review

182 Downloads (Pure)

Towards optimal single-photon sources from polarized microcavities

Wang, H., He, Y-M., Chung, T. H., Hu, H., Yu, Y., Chen, S., Ding, X., Chen, M-C., Qin, J., Yang, X., Liu, R-Z., Duan, Z-C., Li, J-P., Gerhardt, S., Winkler, K., Jurkat, J., Wang, L-J., Gregersen, N., Huo, Y-H., Dai, Q. & 4 others, Yu, S., Höfling, S., Lu, C-Y. & Pan, J-W., 2019, In : Nature Photonics. 13, p. 770–775

Research output: Contribution to journalJournal articleResearchpeer-review

File
2018

All-optical mapping of the position of single quantum dots embedded in a nanowire antenna

Fons, R., Østerkryger, A. D., Stepanov, P., Gautier, E., Bleuse, J., Gerard, J-M., Gregersen, N. & Claudon, J., 2018, In : Nano letters. 18, 10, p. 6434−6440

Research output: Contribution to journalJournal articleResearchpeer-review

339 Downloads (Pure)

Benchmarking five numerical simulation techniques for computing resonance wavelengths and quality factors in photonic crystal membrane line defect cavities

de Lasson, J. R., Frandsen, L. H., Gutsche, P., Burger, S., Kim, O. S., Breinbjerg, O., Ivinskaya, A., Wang, F., Sigmund, O., Häyrynen, T., Lavrinenko, A. V., Mørk, J. & Gregersen, N., 2018, In : Optics Express. 26, 9, p. 11366-11392

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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110 Downloads (Pure)

Benchmarking state-of-the-art numerical simulation techniques for analyzing large photonic crystal membrane line defect cavities

Gregersen, N., de Lasson, J. R., Frandsen, L. H., Gutsche, P., Burger, S., Kim, O. S., Breinbjerg, O., Ivinskaya, A., Wang, F., Sigmund, O., Häyrynen, T. & Lavrinenko, A., 2018, Proceedings of SPIE. SPIE - International Society for Optical Engineering, Vol. 10672. 6 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
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298 Downloads (Pure)

Benchmarking state-of-the-art optical simulation methods for analyzing large nanophotonic structures

Gregersen, N., de Lasson, J. R., Frandsen, L. H., Kim, O. S., Breinbjerg, O., Wang, F., Sigmund, O., Ivinskaya, A., Lavrinenko, A., Gutsche, P., Burger, S., Häyrynen, T. & Mørk, J., 2018, Proceedings of XXVI International Workshop on Optical Wave & Waveguide Theory and Numerical Modelling.. TU Dortmund University, p. 9-9 O-3.1

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
380 Downloads (Pure)

Cavity-waveguide interplay in optical resonators and its role in optimal single-photon sources

Denning, E., Iles-Smith, J., Osterkryger, A. D., Gregersen, N. & Mork, J., 25 Sep 2018, In : Physical Review B. 98, 12, 5 p., 121306.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
64 Downloads (Pure)

Designing Single-Photon Sources: Towards Unity

Gregersen, N., Denning, E. V. & Mørk, J., 2018. 1 p.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

Open Access
File
57 Downloads (Pure)

Fundamental cavity-waveguide interplay in cavity QED

Denning, E. V., Iles-Smith, J., Østerkryger, A. D., Gregersen, N. & Mørk, J., 2018. 1 p.

Research output: Contribution to conferencePaperResearchpeer-review

Open Access
File
173 Downloads (Pure)

Giant nonlinear interaction between two optical beams via a quantum dot embedded in a photonic wire

Nguyen, H. A., Grange, T., Reznychenko, B., Yeo, I., de Assis, P. L., Tumanov, D., Fratini, F., Malik, N. S., Dupuy, E., Gregersen, N., Auffeves, A., Gérard, J-M., Claudon, J. & Poizat, J-P., 2018, In : Physical Review B (Condensed Matter and Materials Physics). 97, 5 p., 201106.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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65 Downloads (Pure)

Giant Two-Mode Non-linearity Using a Single Quantum Dot Embedded in a Photonic Wire.

Nguyen, H. A., Grange, T., Reznychenko, B., Yeo, I., de Assis, P. L., Tumanov, D., Fratini, F., Malik, N. S., Dupuy, E., Gregersen, N., Auffeves, A., Gerard, J. M., Claudon, J. & Poizat, J. P., 2018. 1 p.

Research output: Contribution to conferencePaperResearchpeer-review

Open Access
File
215 Downloads (Pure)

High quality factor GaAs microcavity with buried bullseye defects

Winkler, K., Gregersen, N., Hayrynen, T., Bradel, B., Schade, A., Emmerling, M., Kamp, M., Höfling, S. & Schneider, C., 2018, In : Physical Review Materials. 2, 5, 5 p., 052201 .

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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316 Downloads (Pure)

Intrinsic and environmental effects on the interference properties of a high-performance quantum dot single-photon source

Gerhardt, S., Iles-Smith, J., McCutcheon, D., He, Y-M., Unsleber, S., Betzold, S., Gregersen, N., Mørk, J., Höfling, S. & Schneider, C., 2018, In : Physical Review B (Condensed Matter and Materials Physics). 97, 10 p., 195432.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
197 Downloads (Pure)

Which Computational Methods Are Good for Analyzing Large Photonic Crystal Membrane Cavities?

Malureanu, R., de Lasson, J. R., Frandsen, L. H., Gutsche, P., Burger, S., Kim, O. S., Breinbjerg, O., Ivinskaya, A., Wang, F., Sigmund, O., Häyrynen, T., Lavrinenko, A., Mørk, J. & Gregersen, N., 2018, Proceedings of the 20th Anniversary International Conference on Transparent Optical Networks. IEEE, 4 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
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2017
1 Downloads (Pure)

Benchmarking five computational methods for analyzing large photonic crystal membrane cavities

Gregersen, N., de Lasson, J. R., Frandsen, L. H., Häyrynen, T., Lavrinenko, A., Mørk, J., Wang, F., Sigmund, O., Kim, O. S., Breinbjerg, O., Ivinskaya, A., Gutsche, P. & Burger, S., 2017, Proceedings of the 2017 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). IEEE, p. 89-90

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Comparison of Five Computational Methods for Computing Q Factors in Photonic Crystal Membrane Cavities

Novitsky, A., de Lasson, J. R., Frandsen, L. H., Gutsche, P., Burger, S., Kim, O. S., Breinbjerg, O., Ivinskaya, A., Wang, F., Sigmund, O., Häyrynen, T., Lavrinenko, A., Mørk, J. & Gregersen, N., 2017, Proceedings of 19th International Conference on Transparent Optical Networks. IEEE, 2 p. Mo.D6.3

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Comparison of Five Numerical Methods for Computing Quality Factors and Resonance Wavelengths in Photonic Crystal Membrane Cavities

Gregersen, N., de Lasson, J. R., Frandsen, L. H., Kim, O. S., Breinbjerg, O., Wang, F., Sigmund, O., Ivinskaya, A., Lavrinenko, A., Gutsche, P., Burger, S., Häyrynen, T. & Mørk, J., 2017, Proceedings of CLEO®/Europe-EQEC 2017. IEEE, 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

155 Downloads (Pure)

Determination of radial quantum dot position in trumpet nanowires from far field measurements

Østerkryger, A. D., Gregersen, N., Fons, R., Stepanov, P., Jakubczyk, T., Bleuse, J., Gérard, J-M. & Claudon, J., 2017. 1 p.

Research output: Contribution to conferencePosterResearch

Open Access
File
107 Downloads (Pure)

Efficient Modeling of Excitons in Type-II Nanowire Quantum Dots - Presented at: CLEO®/Europe-EQEC 2017, 2017, Munich

Taherkhani, M., Gregersen, N., Mørk, J. & Willatzen, M., 2017. 1 p.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

Open Access
File
153 Downloads (Pure)

Enhanced Photon Extraction from a Nanowire Quantum Dot Using a Bottom-Up Photonic Shell

Jeannin, M., Cremel, T., Häyrynen, T., Gregersen, N., Bellet-Amalric, E., Nogues, G. & Kheng, K., 2017, In : Physical Review Applied. 8, 5, 8 p., 054022.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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203 Downloads (Pure)

Modeling open nanophotonic systems using the Fourier modal method: Generalization to 3D Cartesian coordinates

Häyrynen, T., Østerkryger, A. D., de Lasson, J. R. & Gregersen, N., 2017, In : Journal of the Optical Society of America A. 34, 9, p. 1632-1641

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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Modelling open nanophotonic structures using the Fourier modal method in infinite domains

Østerkryger, A. D., Häyrynen, T., de Lasson, J. R. & Gregersen, N., 2017, 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

130 Downloads (Pure)

On the Theory of Coupled Modes in Optical Cavity-Waveguide Structures

Kristensen, P. T., de Lasson, J. R., Heuck, M., Gregersen, N. & Mørk, J., 2017, In : Journal of Lightwave Technology. 35, 19, p. 4247-4259

Research output: Contribution to journalJournal articleResearchpeer-review

File

Optical localization of quantum dots in tapered nanowires

Østerkryger, A. D., Gregersen, N., Fons, R., Stepanov, P., Jakubczyk, T., Bleuse, J., Gérard, J-M. & Claudon, J., 2017, Proceedings of the 17th International Conference on Numerical Simulation of Optoelectronic Devices . IEEE, Vol. 2017. p. 119-20 (Proceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, Nusod).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

203 Downloads (Pure)

Single-photon sources for quantum technologies - Results of the joint research project SIQUTE

Kück, S., López, M., Rodiek, B., Hofer, H., Porrovecchio, G., Šmid, M., Brida, G., Traina, P., Degiovanni, I. P., Pokatilov, A., Kübarsepp, T., Manninen, A., Vaigu, A., Chunnilall, C., Szwer, D., Polyakov, S., Claudon, J., Gregersen, N., Mørk, J., Chu, X-L. & 5 others, Götzinger, S., Lindner, S., Bock, M., Becher, C. & Reitzenstein, S., 2017, Proceedings of 13th International Conference on New Developments and Applications in Optical Radiometry . 2 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
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200 Downloads (Pure)

Type-II quantum-dot-in-nanowire structures with large oscillator strength for optical quantum gate applications

Taherkhani, M., Willatzen, M., Mørk, J., Gregersen, N. & McCutcheon, D. P. S., 2017, In : Physical Review B. 96, 12, 9 p., 125408.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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Type-II Quantum Dot Nanowire Structures with Large Oscillator Strengths for Optical Quantum Gating Applications

Taherkhani, M., Gregersen, N., Willatzen, M. & Mørk, J., 2017, Proceedings of NUSOD 2017. IEEE, p. 7-8

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

56 Downloads (Pure)

Ultralow power all-optical switch

Nguyen, H., Grange, T., Reznychenko, B., Yeo, I., De Assis, P., Tumanov, D., Fratini, F., Malik, N., Dupuy, E., Gregersen, N., Auffèves, A., Gérard, J., Claudon, J. & Poizat, J., 2017, In : arXiv. 10 p., 1705.04056.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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Ultra-Low Power Optical Transistor Using a Single Quantum Dot Embedded in a Photonic Wire

Nguyen, H. A., Grange, T., Malik, N. S., Dupuy, E., Tumanov, D., de Assis, P. L., Yeo, I., Fratini, F., Gregersen, N., Auffeves, A., Claudon, J. & Poizat, J. P., 2017, Quantum Information and Measurement 2017. Optical Society of America OSA, 1 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
2016
221 Downloads (Pure)

A broadband tapered nanocavity for efficient nonclassical light emission

Gregersen, N., McCutcheon, D., Mørk, J., Gérard, J-M. & Claudon, J., 2016, In : Optics Express. 24, 18, p. 20904-24

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
397 Downloads (Pure)

A fiber-coupled quantum-dot on a photonic tip

Cadeddu, D., Teissier, J., Braakman, F. R., Gregersen, N., Stepanov, P., Gérard, J. M., Claudon, J., Warburton, R. J., Poggio, M. & Munsch, M., 2016, In : Applied Physics Letters. 108, 5 p., 011112.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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1 Downloads (Pure)

A modal approach to light emission and propagation in coupled cavity waveguide systems

Gregersen, N., Kristensen, P. T., de Lasson, J. R., Gregersen, N. & Mørk, J., 2016, Proceedings of the 7th International Conference on Metamaterials, Photonic Crystals and Plasmonics. 2 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

1 Downloads (Pure)

Broadband Purcell enhancement in highly efficient photonic nanowire-based single-photon sources

Gregersen, N., McCutcheon, D., Mørk, J., Claudon, J. & Gerard, J-M., 2016, Proceedings of the 7th International Conference on Metamaterials, Photonic Crystals and Plasmonics. 2 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

77 Downloads (Pure)

CdSe quantum dot in vertical ZnSe nanowire and photonic wire for efficient single-photon emission

Cremel, T., Bellet-Amalric, E., Cagnon, L., Gregersen, N. & Kheng, K., 2016. 1 p.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

Open Access
File
1 Downloads (Pure)

Comparison of four computational methods for computing Q factors and resonance wavelengths in photonic crystal membrane cavities

de Lasson, J. R., Frandsen, L. H., Burger, S., Gutsche, P., Kim, O. S., Breinbjerg, O., Sigmund, O., Mørk, J. & Gregersen, N., 2016, Proceedings of the 7th International Conference on Metamaterials, Photonic Crystals and Plasmonics. 2 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Efficient formalism for treating tapered structures using the Fourier modal method

Østerkryger, A. D. & Gregersen, N., 2016, Proceedings of SPIE. SPIE - International Society for Optical Engineering, 7 p. 988917

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Efficient Modeling of Coulomb Interaction Effect on Exciton in Crystal-Phase Nanowire Quantum Dot

Taherkhani, M., Gregersen, N., Mørk, J., McCutcheon, D. & Willatzen, M., 2016, Proceedings of the 16th International Conference on Numerical Simulation of Optoelectronic Devices. IEEE, 2 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

323 Downloads (Pure)
Open Access
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Modeling cavities exhibiting strong lateral confinement using open geometry Fourier modal method

Häyrynen, T. & Gregersen, N., 2016, Proceedings of SPIE. SPIE - International Society for Optical Engineering, Vol. 9900. 7 p. 990017

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

332 Downloads (Pure)

On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar

Ding, X., He, Y., Duan, Z-C., Gregersen, N., Chen, M-C., Unsleber, S., Maier, S., Schneider, C., Kamp, M., Höfling, S., Lu, C-Y. & Pan, J-W., 2016, In : Physical Review Letters. 116, 6 p., 020401.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
151 Downloads (Pure)

Open-geometry Fourier modal method: modeling nanophotonic structures in infinite domains

Häyrynen, T., de Lasson, J. R. & Gregersen, N., 2016, In : Journal of the Optical Society of America A. 33, 7, p. 1298-1306

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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Quantum dot-micropillars: a bright source of coherent single photons

Unsleber, S., He, Y-M., Maier, S., Gerhardt, S., Ding, X., He, Y., Duan, Z. -C., Gregersen, N., Chen, M-C., Lu, C-Y., Pan, J-W., Schneider, C. & Hofling, S., 2016, Proceedings of 2016 IEEE Photonics Conference. IEEE, p. 212-13 (2016 Ieee Photonics Conference (ipc)).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

131 Downloads (Pure)

Quantum optics with quantum dots in photonic wires

Munsch, M., Cadeddu, D., Teissier, J., Kuhlmann, A., Poggio, M., Gregersen, N., Gerard, J-M., Claudon, J. & Warburton, R. J., 2016, 2016 Conference on Lasers and Electro-Optics (CLEO). Optical Society of America OSA, 2 p. (2016 Conference on Lasers and Electro-optics (cleo)).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
1 Downloads (Pure)

Quantum photonics with quantum dots in photonic wires

Munsch, M., Kuhlmann, A., Cadeddu, D., Teissier, J., Poggio, M., Gregersen, N., Gerard, J. M., Claudon, J. & Warburton, R. J., 2016, Proceedings of the 7th International Conference on Metamaterials, Photonic Crystals and Plasmonics. 2 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

1 Downloads (Pure)

Site-controlled quantum dots coupled to photonic crystal waveguides

Rigal, B., de Lasson, J. R., Jarlov, C., Dwir, B., Rudra, A., Lyasota, A., Kulkova, I., Gregersen, N., Mørk, J. & Kapon, E., 2016, Proceedings of 7th International Conference on Metamaterials, Photonic Crystals and Plasmonics. 2 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review