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

    2800 Kgs. Lyngby

    Denmark

20032021
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Research Output 2005 2019

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

Transfer functions for uncoated SNOM fiber tips

Gregersen, N., 2005.

Research output: Contribution to conferencePosterResearch

2006

Topography characterization of a deep grating using near-field imaging

Gregersen, N., Tromborg, B., Volkov, V. S., Bozhevolnyi, S. I. & Holm, J., 2006, In : Applied Optics. 45, 1, p. 117-121

Research output: Contribution to journalJournal articleResearchpeer-review

Transfer function and near-field detection of evanescent waves

Radko, Y. P., Bozhevolnyi, S. I. & Gregersen, N., 2006, In : Applied Optics. 45, 17, p. 4054-4061

Research output: Contribution to journalJournal articleResearchpeer-review

Vectorial modeling of near-field imaging with uncoated fiber probes: Transfer function and resolving power

Gregersen, N., Tromborg, B. & Bozhevolnyi, S. I., 2006, In : Applied Optics. 45, 34, p. 8739-8747

Research output: Contribution to journalJournal articleResearchpeer-review

Vectorial modeling of transfer functions of fiber tips in collection mode SNOM

Gregersen, N. & Tromborg, B., 2006.

Research output: Contribution to conferencePosterResearchpeer-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

Influence of geometry on the quality factor of a micro-pillar

Gregersen, N., Nielsen, T. R. & Mørk, J., 2007.

Research output: Contribution to conferencePosterResearchpeer-review

132 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
File
163 Downloads (Pure)

Optical methods for characterization of surface structures on a nanometer scale

Gregersen, N., Mar 2007

Research output: Book/ReportPh.D. thesisResearch

Open Access
File

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

220 Downloads (Pure)

Quality factors of nonideal micro pillars

Gregersen, N., Nielsen, T. R., Tromborg, B. & Mørk, J., 2007, In : Applied Physics Letters. 91, 1, p. 011116

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
2008

An improved perfectly matched layer for the eigenmode expansion technique

Gregersen, N. & Mørk, J., 2008, In : Optical and Quantum Electronics. 40, 11-12, p. 957-966

Research output: Contribution to journalJournal articleResearchpeer-review

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

Controlling the emission profile of a nanowire with a conical taper

Gregersen, N., Nielsen, T. R., Claudon, J., Gerard, J. M. & Mørk, J., 1 Aug 2008, In : Optics Letters. 33, 15, p. 1693-1695

Research output: Contribution to journalJournal articleResearchpeer-review

Controlling the emission profile of a nanowire with a conical taper

Gregersen, N., Nielsen, T. R., Mørk, J., Claudon, J. & Gerard, J. M., 2008.

Research output: Contribution to conferencePosterResearchpeer-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

180 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
File
110 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
File
243 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
File

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

The optical chip: high speed and diminutive size

Gregersen, N., Skovgård, T. S., Ek, S., Xue, W., Chung, I-S. & Mørk, J., 2009, Beyond optical horizons: today and tomorrow with photonics. 1 ed. Kgs. Lyngby: DTU Fotonik, p. 235-249 267 p.

Research output: Chapter in Book/Report/Conference proceedingBook chapterCommunication

2010

A high-efficiency electrically-pumped single-photon source based on a photonics nanowire

Gregersen, N., Nielsen, T. R., Mørk, J., Claudon, J. & Gérard, J-M., 2010.

Research output: Contribution to conferencePaperResearchpeer-review

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., Gérard, J-M., Sauvan, C., Hugonin, J-P., Lalanne, P., Gregersen, N. & Mørk, J., 2010

Research output: Non-textual formSound/Visual production (digital)Research

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

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., Gérard, J-M., Sauvan, C., Hugonin, J-P., Lalanne, P., Gregersen, N. & Mørk, J., 2010, In : Proceedings of SPIE, the International Society for Optical Engineering. 7712

Research output: Contribution to journalConference articleResearchpeer-review

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., Gérard, J-M., Sauvan, C., Hugonin, J-P., Lalanne, P., Gregersen, N. & Mørk, J., 2010

Research output: Non-textual formSound/Visual production (digital)Research

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
File
234 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
File

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

805 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
File

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

159 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
File

Une source de photons uniques efficace basée sur une boîte quantique intégrée dans un fil photonique

Claudon, J., Bleuse, J., Malik, N. S., Bazin, M., Jaffrennou, P., Gérard, J-M., Sauvan, C., Hugonin, J-P., Lalanne, P., Gregersen, N. & Mørk, J., 2010

Research output: Non-textual formSound/Visual production (digital)Research

2011
340 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

An Electrically Driven Single Photon Source

Gregersen, N., Claudon, J. & Gerard, J-M., 2011, Patent No. WO 2011009465, 27 Jan 2011

Research output: Patent

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

46 Downloads (Pure)

Efficient and broadband control of the spontaneous emission in photonic nanowires

Munsch, M., Bleuse, J., Claudon, J., Creasey, M., Malik, N. S., Dupuy, E., Chen, Y., Gregersen, N., Mørk, J., Maksymov, I., Hugonin, J. P., Lalanne, P. & Gérard, J-M., 2011.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

File

Electrically pumped photonic nanowire single-photon source with an efficienty of 89%

Gregersen, N., Nielsen, T. R., Mørk, J., Claudon, J. & Gérard, J-M., 2011, In : Proceedings of SPIE, the International Society for Optical Engineering. 7933, p. 79331X

Research output: Contribution to journalConference articleResearchpeer-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

199 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
File

Quantum Dots in Tapered Photonic Wires: towards Unit-Efficiency Single-Photon Sources

Claudon, J., Bleuse, J., Malik, N. S., Gregersen, N., Sauvan, C., Lalanne, P. & Gerard, J-M., 2011.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-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