Niels Gregersen

Niels Gregersen

Associate Professor

DTU FOTONIK
Department of Photonics Engineering

Quantum and Laser Photonics

Technical University of Denmark

Ørsteds Plads

Building 345A, room 274

2800 Kgs. Lyngby

Ph.
Fax +45 45 93 65 81
E-mail ngre@fotonik.dtu.dk
ORCID 0000-0002-8252-8989
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2017
 

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

Kristensen, Philip Trøst ; de Lasson, Jakob Rosenkrantz ; Heuck, Mikkel ; Gregersen, Niels ; Mørk, Jesper
in journal: Journal of Lightwave Technology (ISSN: 0733-8724) (DOI: http://dx.doi.org/10.1109/JLT.2017.2714263), vol: 35, issue: 19, pages: 4247-4259, 2017

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: http://dx.doi.org/10.1109/JLT.2017.2714263

  PDF

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

Jeannin, Mathieu ; Cremel, Thibault ; Häyrynen, Teppo ; Gregersen, Niels ; Bellet-Amalric, Edith ; Nogues, Gilles ; Kheng, Kuntheak
in journal: Physical Review Applied (ISSN: 2331-7019) (DOI: http://dx.doi.org/10.1103/PhysRevApplied.8.054022), vol: 8, issue: 5, 2017

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: http://dx.doi.org/10.1103/PhysRevApplied.8.054022

  PDF

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, Niels ; Auffèves, A. ; Gérard, J. ; Claudon, J. ; Poizat, J.
in journal: arXiv, 2017

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017

 

Optical localization of quantum dots in tapered nanowires

Østerkryger, Andreas Dyhl ; Gregersen, Niels ; Fons, Romain ; Stepanov, Petr ; Jakubczyk, Tomasz ; Bleuse, Joël ; Gérard, Jean-Michel ; Claudon, Julien
in journal: Proceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, Nusod (ISSN: 2158-3242) (DOI: http://dx.doi.org/10.1109/NUSOD.2017.8010020), vol: 2017, pages: 119-20, 2017
Presented at:
17th International Conference on Numerical Simulation of Optoelectronic Devices, 2017, Lyngby

Type: Conference article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: http://dx.doi.org/10.1109/NUSOD.2017.8010020

 

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

Østerkryger, Andreas Dyhl ; Häyrynen, Teppo ; de Lasson, Jakob Rosenkrantz ; Gregersen, Niels
part of: 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2017, IEEE,
Presented at:
CLEO/Europe-EQEC 2017: Conference on Lasers and Electro-Optics/Europe and the European Quantum Electronics Conference , 2017, Munich

Type: Conference abstract in proceedings (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: http://dx.doi.org/10.1109/CLEOE-EQEC.2017.8087723

2016
  PDF

Ultra-low power all-optical switch 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, Niels ; Auffeves, A. ; Gerard, J.M. ; Claudon, J.
Presented at:
Wilhelm und Else Heraeus-Seminar, 2016, Bad Honnef

Type: Conference abstract for conference (Peer reviewed)

Status: Published     |    Year: 2016

  PDF

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

Ding, Xing ; He, Yu ; Duan, Z.-C. ; Gregersen, Niels ; Chen, M.-C. ; Unsleber, S. ; Maier, Sebastian ; Schneider, Christian ; Kamp, Martin ; Höfling, Sven ; Lu, Chao-Yang ; Pan, Jian-Wei
in journal: Physical Review Letters (ISSN: 0031-9007) (DOI: http://dx.doi.org/10.1103/PhysRevLett.116.020401), vol: 116, 2016

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: http://dx.doi.org/10.1103/PhysRevLett.116.020401

  PDF

A fiber-coupled quantum-dot on a photonic tip

Cadeddu, Davide ; Teissier, Jean ; Braakman, Floris R. ; Gregersen, Niels ; Stepanov, Petr ; Gérard, Jean Michel ; Claudon, Julien ; Warburton, Richard J. ; Poggio, Martino ; Munsch, Mathieu
in journal: Applied Physics Letters (ISSN: 0003-6951) (DOI: http://dx.doi.org/10.1063/1.4939264), vol: 108, 2016

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: http://dx.doi.org/10.1063/1.4939264

  PDF

Highly indistinguishable on-demand resonance fluorescence photons from a deterministic quantum dot micropillar device with 74% extraction efficiency

Gregersen, Niels
in journal: Optics Express (ISSN: 1094-4087) (DOI: http://dx.doi.org/10.1364/OE.24.008539), vol: 24, issue: 8, 2016

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: http://dx.doi.org/10.1364/OE.24.008539

  PDF

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

Østerkryger, Andreas Dyhl ; de Lasson, Jakob Rosenkrantz ; Heuck, Mikkel ; Yu, Yi ; Mørk, Jesper ; Gregersen, Niels
in journal: Optics Letters (ISSN: 0146-9592) (DOI: http://dx.doi.org/10.1364/OL.41.002065), vol: 41, issue: 9, pages: 2065-2068, 2016

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: http://dx.doi.org/10.1364/OL.41.002065