Photo of Niels Gregersen
  • Ørsteds Plads, 345A, 274

    2800 Kgs. Lyngby

    Denmark

20032021

Research output per year

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Research Output

Article in proceedings

A Bloch modal approach for engineering waveguide and cavity modes in two-dimensional photonic crystals

de Lasson, J. R., Kristensen, P. T., Mørk, J. & Gregersen, N., 2014, Proceedings of SPIE. SPIE - International Society for Optical Engineering, Vol. 9127. 6 p.

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

A Bloch mode expansion approach for analyzing quasi-normal modes in open nanophotonic structures

de Lasson, J. R., Kristensen, P. T., Mørk, J. & Gregersen, N., 2014, Proceedings of META 2014. 3 p.

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

A High-Efficiency Photonic Nanowire Single-Photon Source Featuring An Inverted Conical Taper

Gregersen, N., Nielsen, T. R., Mørk, J., Claudon, J. & Gérard, J-M., 2011, 2011 11th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). p. 5-6

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

File
346 Downloads (Pure)

A highly efficient monomode single photon source in the photonic wire geometry

Claudon, J., Bleuse, J., Bazin, M., Malik, N. S., Jaffrennou, P., Gerard, J. M., Sauvan, C., Hugonin, J. P., Lalanne, P., Gregersen, N. & Mørk, J., 2009, Proceedings, OECS.

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

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)

An improved perfectly matched layer in the eigenmode expansion technique

Gregersen, N. & Mørk, J., 2008, XVII International workshop on optical waveguide theory and numerical modelling. Eindhoven, Holland: University of Twente, 59 p.

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

A novel high-efficiency single-mode quantum dot single photon source

Gerard, J. M., Gregersen, N., Nielsen, T. R., Claudon, J. & Mørk, J., 2008, Development of a Global Network for Secure Communication based on Quantum Crytography: SECOQC. Vienna, Austria

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

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

1 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
File
131 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
307 Downloads (Pure)

Bloch-Wave Engineered Submicron Diameter Micropillars with Quality Factors Exceeding 10,000

Hofling, S., Lermer, M., Gregersen, N., Dunzer, F., Schneider, C., Reitzenstein, S., Kamp, M., Mørk, J., Worschech, L. & Forchel, A., 2011, 2011 IEEE Photonics Conference. IEEE, p. 69-70

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

Bright quantum dot single photon source based on a low Q defect cavity

Maier, S., Gold, P., Forchel, A., Gregersen, N., Höfling, S., Schneider, C. & Kamp, M., 2014, Proceedings of Quantum Information and Measurement. Optical Society of America (OSA), 3 p. (Optics Infobase Conference Papers).

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

1 Downloads (Pure)

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 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

1 Downloads (Pure)

Controlling light emission from single-photon sources using photonic nanowires

Gregersen, N., Chen, Y., Mørk, J., Sauvan, C., Lalanne, P., Munsch, M., Claudon, J., Bleuse, J., Malik, N. S., Dupuy, E. & Gérard, J. M., 2012, Proceedings ECIO 2012: Invited Speakers.

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

Open Access
File
153 Downloads (Pure)

Controlling nanowire emission profile using conical taper

Gregersen, N., Nielsen, T. R., Mørk, J., Claudon, J. & Gerard, J. M., 2008, Integrated Photonics and Nanophotonics Research and Applications. Boston, Massachusetts,USA: Optical Society of America, p. ITuB2

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

Design for an Electrically-Pumped Photonic Nanowire Single-Photon Source with an Effciency of 89 %

Gregersen, N., Nielsen, T. R., Mørk, J., Claudon, J. & Gérard, J-M., 2011, 2011 Conference on and 12th European Quantum Electronics Conference Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC). IEEE, p. CK6.3

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

1 Downloads (Pure)

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

Finite element modeling of plasmon based single-photon sources

Chen, Y., Gregersen, N., Nielsen, T. R., Lodahl, P. & Mørk, J., 2011, 2011 11th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). IEEE, p. 33-34

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

High brightness single photon sources based on photonic wires

Claudon, J., Bleuse, J., Bazin, M., Malik, N. S., Jaffrennou, P., Lalanne, P., Gregersen, N. & Gerard, J. M., 2009, Conference proceedings, ICTON. IEEE, p. We.A4.2

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

High-efficiency single-photon source: The photonic wire geometry

Claudon, J., Bazin, M., Malik, N. S., Bleuse, J., Gerard, J-M., Friedler, I., Lalanne, P., Hugonin, J-P., Gregersen, N., Nielsen, T. R. & Mørk, J., 2009, Conference proceedings, CLEO/QELS. IEEE, p. ITuM1

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

Highly efficient sources of single indistinguishable photons

Gregersen, N., 2013, 2013 13th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). IEEE, 2 p.

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

Highly indistinguishable photons from a QD-microcavity with a large Purcell-factor

Unsleber, S., McCutcheon, D., Dambach, M., Lermer, M., Gregersen, N., Hofling, S., Mørk, J., Schneider, C. & Kamp, M., 2015, Proceedings of 2015 Conference on Lasers and Electro-Optics. IEEE, 2 p. FF1B.1

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

Open Access
File
179 Downloads (Pure)

Influence of geometry on the quality factor of a micro pillar

Gregersen, N., Nielsen, T. R. & Mørk, J., 2007, Proceedings OWTNM: April 27-28. Kgs. Lyngby, Denmark: COM.DTU, 1 p.

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

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

Modelling Q-factors of micro pillars

Nielsen, T. R., Gregersen, N., Tromborg, B. & Mørk, J., 2007, 9th International Conference on Transparent Optical Networks, 2007. ICTON '07.. IEEE

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

Open Access
File
136 Downloads (Pure)

Modulation response of quantum dot nano-LEDs and nano-lasers

Skovgård, T. S., Gregersen, N., Lorke, M. & Mørk, J., 2011, 2011 Conference on and 12th European Quantum Electronics Conference Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC). IEEE

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

Nonlinear dynamics in photonic crystal nanocavity lasers

Skovgård, T. S., Kristensen, P. T., Frandsen, L. H., Schubert, M., Gregersen, N. & Mørk, J., 2009, Conference abstract series, CLEO/Europe - EQEC. IEEE, p. 1-1

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

Open Access
File
185 Downloads (Pure)

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

Optimizing the spontaneous-emission ß factor for single optical plasmon generation

Chen, Y., Nielsen, T. R., Gregersen, N., Lodahl, P. & Mørk, J., 2009, Proceedings, CLEO/Europe - EQEC. IEEE, p. 1-1

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Open Access
File
113 Downloads (Pure)

Quality factors of nonideal micro pillars

Nielsen, T. R., Gregersen, N., Tromborg, B. & Mørk, J., 2007, Integrated photonics and nanophotonics research and applications. Salt Lake City, USA

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

Quantitative analysis of oscillatory variations in the quality factor of micropillar cavities

Gregersen, N., Nielsen, T. R. & Mørk, J., 2009, Conference proceedings, TaCoNa-Photonics. American Institute of Physics, p. 115-117

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

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

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
File
97 Downloads (Pure)

Quantum Optics with Quantum Dots in Photonic Nanowires

Gérard, J. M., Claudon, J., Bleuse, J., Munsch, M., Gregersen, N. & Lalanne, P. ., 2012, CLEO Technical Digest. Optical Society of America, p. CTh3M.1 2 p.

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

Open Access
File
148 Downloads (Pure)

Quantum Optics with Quantum Dots in Photonic Nanowires

Gérard, J-M., Claudon, J., Bleuse, J., Singh, N. M., Gregersen, N. & Lalanne, P., 2011, 2011 Conference on and 12th European Quantum Electronics Conference Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC). IEEE, p. EI4.1

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

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
142 Downloads (Pure)

Quantum Optics with Quantum Dots in Photonic Wires: Basics and Application to “Ultrabright” Single Photon Sources

Gérard, J. M., Claudon, J., Bleuse, J., Malik, N. S., Munsch, M., Dupuy, E., Lalanne, P. & Gregersen, N., 2011, 2011 13th International Conference on Transparent Optical Networks (ICTON). IEEE, p. Mo.B5.4 ( 2012 14th International Conference on Transparent Optical Networks (ICTON)).

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

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)

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
File
208 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

1 Downloads (Pure)

Strain spectrally-tunable single-photon source based on a quantum dot in micro-cavity

Moczała-Dusanowska, M., Dusanowski, Ł., Gerhardt, S., He, Y-M., Reindl, M., Rastelli, A., Trotta, R., Gregersen, N., Höfling, S. & Schneider, C., 2020, (Accepted/In press) Proceedings of SPIE. SPIE - International Society for Optical Engineering, 2 p.

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

Open Access
File

Study of Photosensitivity as a Function of Polarization for UV-Light in Optical Fibre using Blue Luminescence

Sørensen, H. R., Canning, J., Gregersen, N. & Kristensen, M., 2005, Bragg Gratings, Poling and Photosensitivity (BGPP/ACOFT 2005). Vol. Conference CD-ROM. p. 152-154

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

The photonic nanowire: A highly efficient single-photon source

Gregersen, N., 2014, Advanced Photonics for Communications. Optical Society of America (OSA), 2 p.

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

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

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

Very Efficient Single-Photon Sources Based on Quantum Dots in Photonic Wires

Gerard, J-M., Claudon, J., Bleuse, J., Munsch, M. & Gregersen, N., 2014, Proceedings of 2014 International Semiconductor Laser Conference. IEEE, 2 p.

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

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
File
217 Downloads (Pure)