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

    2800 Kgs. Lyngby

    Denmark

20032021
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Research Output 2005 2019

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Journal article
2019
17 Downloads (Pure)

Design of Quantum Dot-Nanowire Single-Photon Sources that are Immune to Thermomechanical Decoherence

Artioli, A., Kotal, S., Gregersen, N., Verlot, P., Gérard, J-M. & Claudon, J., 2019, In : Physical Review Letters. 123, 24, 6 p., 247403.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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131 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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82 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
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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

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

218 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

360 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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409 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
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192 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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236 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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333 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
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2017
165 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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226 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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144 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
218 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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57 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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2016
240 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
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421 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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335 Downloads (Pure)
Open Access
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345 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
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165 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
File
263 Downloads (Pure)

Spectral symmetry of Fano resonances in a waveguide coupled to a microcavity

Østerkryger, A. D., de Lasson, J. R., Heuck, M., Yu, Y., Mørk, J. & Gregersen, N., 2016, In : Optics Letters. 41, 9, p. 2065-2068

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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2015
396 Downloads (Pure)

Highly directive and Gaussian far-field emission from “giant” photonic trumpets

Stepanov, P., Delga, A., Gregersen, N., Peinke, E., Munsch, M., Teissier, J., Mørk, J., Richard, M., Bleuse, J., Gérard, J-M. & Claudon, J., 2015, In : Applied Physics Letters. 107, 14, 4 p., 141106.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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324 Downloads (Pure)

Impact of slow-light enhancement on optical propagation in active semiconductor photonic crystal waveguides

Chen, Y., de Lasson, J. R., Gregersen, N. & Mørk, J., 2015, In : Physical Review A. 92, p. 8 053839.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
259 Downloads (Pure)

Observation of resonance fluorescence and the Mollow triplet from a coherently driven site-controlled quantum dot

Unsleber, S., Maier, S., McCutcheon, D., He, Y-M., Dambach, M., Gschrey, M., Gregersen, N., Mørk, J., Reitzenstein, S., Höfling, S., Schneider, C. & Kamp, M., 2015, In : Optica. 2, 12, p. 1072-1077

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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278 Downloads (Pure)

Two-photon interference from a quantum dot-microcavity: Persistent pure-dephasing and suppression of time-jitter

Unsleber, S., McCutcheon, D., Dambach, M., Lermer, M., Gregersen, N., Hofling, S., Mørk, J., Schneider, C. & Kamp, M., 2015, In : Physical Review B Condensed Matter. 91, 7, p. 075413 8 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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2014
541 Downloads (Pure)

Bright single photon source based on self-aligned quantum dot–cavity systems

Maier, S., Gold, P., Forchel, A., Gregersen, N., Mørk, J., Höfling, S., Schneider, C. & Kamp, M., 2014, In : Optics Express. 22, 7, p. 8136-8142

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
59 Downloads (Pure)

Calculation, normalization and perturbation of quasinormal modes in coupled cavity-waveguide systems

Kristensen, P. T., de Lasson, J. R. & Gregersen, N., 2014, In : Optics Letters. 39, 22, p. 6359-6362

Research output: Contribution to journalJournal articleResearchpeer-review

1 Downloads (Pure)

Random nanolasing in the Anderson localized regime

Liu, J., Garcia, P. D., Ek, S., Gregersen, N., Skovgård, T. S., Schubert, M., Mørk, J., Stobbe, S. & Lodahl, P., 2014, In : Nature Nanotechnology. 9, 4, p. 285-289

Research output: Contribution to journalJournal articleResearchpeer-review

613 Downloads (Pure)

Roundtrip matrix method for calculating the leaky resonant modes of open nanophotonic structures

de Lasson, J. R., Kristensen, P. T., Mørk, J. & Gregersen, N., 2014, In : Journal of the Optical Society of America A. 31, 10, p. 2142-51

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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2013
346 Downloads (Pure)

Dielectric GaAs Antenna Ensuring an Efficient Broadband Coupling between an InAs Quantum Dot and a Gaussian Optical Beam

Munsch, M., Malik, N. S., Dupuy, E., Delga, A., Bleuse, J., Gerard, J-M., Claudon, J., Gregersen, N. & Mørk, J., 2013, In : Physical Review Letters. 110, 17, p. 177402 5 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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Harnessing Light with Photonic Nanowires: Fundamentals and Applications to Quantum Optics

Claudon, J., Gregersen, N., Lalanne, P. & Gerard, J-M., 2013, In : ChemPhysChem. 14, 11, p. 2393-2402

Research output: Contribution to journalJournal articleResearchpeer-review

543 Downloads (Pure)

High beta lasing in micropillar cavities with adiabatic layer design

Lermer, M., Gregersen, N., Lorke, M., Schild, E., Gold, P., Mørk, J., Schneider, C., Forchel, A., Reitzenstein, S., Höfling, S. & Kamp, M., 2013, In : Applied Physics Letters. 102, 5, p. 052114

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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Modeling and Design of High-Efficiency Single-Photon Sources

Gregersen, N., Nielsen, P. K. & Mørk, J., 2013, In : I E E E Journal on Selected Topics in Quantum Electronics. 19, 5, p. 9000516 16 p.

Research output: Contribution to journalJournal articleResearchpeer-review

482 Downloads (Pure)

Theory of nanolaser devices: Rate equation analysis versus microscopic theory

Lorke, M., Skovgård, T. S., Gregersen, N. & Mørk, J., 2013, In : Physical Review B Condensed Matter. 87, 20, p. 205310 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
214 Downloads (Pure)

The role of phonon scattering in the indistinguishability of photons emitted from semiconductor cavity QED systems

Nielsen, P. K., Gregersen, N. & Mørk, J., 2013, In : New Journal of Physics. 15, 3, p. 035027 25 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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2012
395 Downloads (Pure)

Bloch-wave engineering of quantum dot-micropillars for cavity quantum electrodynamics experiments

Lermer, M., Gregersen, N., Dunzer, F., Reitzenstein, S., Höfling, S., Mørk, J., Worschech, L., Kamp, M. & Forchel, A., 2012, In : Physical Review Letters. 108, 5, p. 057402

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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258 Downloads (Pure)

Linearly Polarized, Single-Mode Spontaneous Emission in a Photonic Nanowire

Munsch, M., Claudon, J., Bleuse, J., Malik, N. S., Dupuy, E., Gerard, J-M., Chen, Y., Gregersen, N. & Mørk, J., 2012, In : Physical Review Letters. 108, 7, p. 077405

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
306 Downloads (Pure)

Modeling of cavities using the analytic modal method and an open geometry formalism

de Lasson, J. R., Christensen, T., Mørk, J. & Gregersen, N., 2012, In : Optical Society of America. Journal A: Optics, Image Science, and Vision. 27, 7, p. 1237-1246

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
301 Downloads (Pure)

Quantum-dot nano-cavity lasers with Purcell-enhanced stimulated emission

Gregersen, N., Skovgård, T. S., Lorke, M. & Mørk, J., 2012, In : Applied Physics Letters. 100, 13, p. 131107

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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2011
202 Downloads (Pure)

Modulation response of quantum dot nanolight-emitting-diodes exploiting purcell-enhanced spontaneous emission

Skovgård, T. S., Gregersen, N., Lorke, M. & Mørk, J., 2011, In : Applied Physics Letters. 98, 21, p. 211109

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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2010

A highly efficient single-photon source based on a quantum dot in a photonic nanowire

Claudon, J., Bleuse, J., Malik, N. S., Bazin, M., Jaffrennou, P., Gregersen, N., Sauvan, C., Lalanne, P. & Gerard, J-M., 2010, In : Nature Photonics. 4, 3, p. 174-177

Research output: Contribution to journalJournal articleResearchpeer-review

204 Downloads (Pure)

Designs for high-efficiency electrically pumped photonic nanowire single-photon sources

Gregersen, N., Nielsen, T. R., Mørk, J., Claudon, J. & Gerard, J-M., 2010, In : Optics Express. 18, 20, p. 21204-21218

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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238 Downloads (Pure)

Finite-element modeling of spontaneous emission of a quantum emitter at nanoscale proximity to plasmonic waveguides

Chen, Y., Nielsen, T. R., Gregersen, N., Lodahl, P. & Mørk, J., 2010, In : Physical Review B Condensed Matter. 81, 12, p. 125431

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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Modeling of mode-locked coupled-resonator optical waveguide lasers

Agger, C., Skovgård, T. S., Gregersen, N. & Mørk, J., 2010, In : I E E E Journal of Quantum Electronics. 46, 12, p. 1804-1812

Research output: Contribution to journalJournal articleResearchpeer-review

807 Downloads (Pure)

Modulation response of nanoLEDs and nanolasers exploiting Purcell enhanced spontaneous emission

Skovgård, T. S., Gregersen, N., Yvind, K. & Mørk, J., 2010, In : Optics Express. 18, 11, p. 11230-11241

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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Numerical and Experimental Study of the Q Factor of High-Q Micropillar Cavities

Gregersen, N., Reitzenstein, S., Kistner, C., Strauss, M., Schneider, C., Hofling, S., Worschech, L., Forchel, A., Nielsen, T. R., Mørk, J. & Gerard, J. M., 2010, In : I E E E Journal of Quantum Electronics. 46, 10, p. 1470-1483

Research output: Contribution to journalJournal articleResearchpeer-review

162 Downloads (Pure)

Spontaneous decay of a single quantum dot coupled to a metallic slot waveguide in the presence of leaky plasmonic modes

Chen, Y., Gregersen, N., Nielsen, T. R., Mørk, J. & Lodahl, P., 2010, In : Optics Express. 18, 12, p. 12489-12498

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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2009
247 Downloads (Pure)

Oscillatory variations in the Q factors of high quality micropillar cavities

Reitzenstein, S., Gregersen, N., Kistner, C., Strauss, M., Schneider, C., Pan, L., Nielsen, T. R., Höfling, S., Mørk, J. & Forchel, A., 2009, In : Applied Physics Letters. 94, 6, p. 061108

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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