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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Article in proceedings
2019
97 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

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2018
131 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
307 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
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217 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

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

208 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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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
2016
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

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

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

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

142 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

2015
179 Downloads (Pure)

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
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2014

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

1 Downloads (Pure)

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

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

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

2013

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

2012
153 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
148 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
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2011
346 Downloads (Pure)

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

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

1 Downloads (Pure)

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

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

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

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: 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

2009

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

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

185 Downloads (Pure)

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
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113 Downloads (Pure)

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
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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

2008

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

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

2007

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

136 Downloads (Pure)

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
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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

2005

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