Nanophotonics Theory & Signal Processing


Below you find the news archive from our group. More recent news are found on the front page.

December 2017: Jake Iles-Smith and Gyeong Cheol Park left the group to take up postdoc positions at Manchester University and University of Cambridge respectively.

September 2017: Our group name is changed to Quantum and Laser photonics.

September 2017: Dr. Igor Protsenko from the P. N. Lebedev Physical Institute in Moscow is guest professor in our group for 3 months.

August 2017: Thorsten Svend Rasmussen started his PhD project on Light-matter interaction and laser dynamics in nanophotonic structures.

July 2017: The European semiconductor laser workshop (ESLW 2017) will be held at DTU campus on September 15 and 16, 2017. It is co-organized by Il-Sug Chung.

June 2017: Il-Sug Chung and Jesper Mørk gave invited talks at CLEO Europe in Munich, Germany.

May 2017: Daniel Pascal Chastanet starts his Postdoc project on growth of crystal phase quantum dots.

May 2017: Andreas Dyhl Østerkryger returns from his external research stay at CNRS, Grenoble, France.

May 2017: Alireza Taghizadeh left the group to join a postdoc position at Aalborg University, Denmark on QUSCOPE project.

Feburary 2017: Emil Vosmar Denning starts his PhD project photonic quantum technologies in structured environments.

Feburary 2017: Kristoffer Bitsch Joanesarson starts his PhD project open quantum systems approach to few photon scattering in photonic devices.

January 2017: Teppo Häyrynen left the group to take up a position in industry.

December 2016: Yi YuJesper Mørk et al published an article on Demonstration of a self-pulsing photonic crystal Fano laser in nature photonics.

December 2016: Niels Gregersen et al published an article which has been highlighted as among the most exciting peer-reviewed research in 2016 by OSA.

November 2016: Dr. Igor Protsenko from the P. N. Lebedev Physical Institute in Moscow is visiting us till mid December. Igor is a world-renowned expert in the quantum properties of lasers and will collaborate with us on developing a theory for superradiance in lasers.

September 2016: Il-Sug Chung gave invited talk at European Semiconductor Laser Workshop held in TU Darmstadt.

September 2016: Kristoffer Skaftved Mathiesen starts his PhD project.

August 2016: Teppo Häyrynen gave invited talk at EMN Meeting on QCQI.

July 2016: Mathias Rosdahl Jensen and Emil Cortes André started their PhD projects.

July 2016: Per Lunnemann Hansen left the group to take up a position in industry.

July 2016: Jesper MørkNiels Gregersen and Yi Yu will give invited talks at META 2016 in Malaga, Spain

June 2016: Geyong Choel Park defended his PhD Vertical-cavity laser with a novel grating mirror.

June 2016: Prof. Eli Kapon from Swiss Federal Institute of Technology Lausanne gave a lecture.

June 2016: Il-Sug Chung gave invited talks at Workshop on Vertical Cavity Lasers at Chalmers University of Technology, Sweden and the 23rd Conference on Optoelectronics and Optical Communications, Busan, Korea.

April 2016: Alireza Taghizadeh defended his PhD Theoretical Investigation of Subwavelength Gratings and Vertical Cavity Lasers Employing Grating Structures.

April 2016: Weiqi Xue left the group.

February 2016: Alireza Taghizadeh and Gyeong Cheol Park started their Postdocs on HOT project.

February 2016: Weiqi Xue et al. published “Threshold Characteristics of Slow-Light Photonic Crystal Lasers” in Phys. Rev. Lett. as one of editors suggestions. The paper is also featured in American Physical Society (APS) physics.

February 2016Niels Gregersen gave invited talk to the Technical physics group at Würzburg University in Germany. 

February 2016Dara McCutcheon left the group to take up Marie Curie fellowship at Bristol University.

January 2016: Mikkel Settnes starts his postdoc project which will be carried out in close collaboration with the Structured Electromagnetic Materials group.

December 2015: Jakob Rosenkrantz de Lasson leaves the group to take up a position with the company TICRA.

December 2015: Jakob Rosenkrantz de Lasson defends his PhD Modeling and simulations of light emission and propagation in open nanophotonic systems.

December 2015: Prof. Stephen Hughes from Queen's University, Canada, will give a lecture.

November 2015: Alireza Taghizadeh returns from an external research stay at UC Berkeley with the group of Prof. Ming C. Wu.

November 2015: Sushil Tandukar starts his PhD project.

November 2015: Lorenzo Leandro starts his PhD project.

October 2015: Aref Rasoulzadeh Zali joins the group. Aref is a PhD student from Iran and will be visiting for half a year, working on Fano lasers.

October 2015: Jake Iles-Smith joins the the group as a postdoc to work on the theory of decoherence in cavity quantum electrodynamics.

September 2015: Yi Yu wins the "Best Student Paper Award" at the conference Photonics in Switching in Florence, Italy.

September 2015: Christine Pepke Pedersen starts her PhD project.

July 2015: Jesper Mørk and Niels Gregersen give invited talks at PIERS 2015 in Prague, Czech Republic.

June 2015: Supannee Learkthanakhachon leaves the group to work in industry.

June 2015: Jesper Mørk received 6.4 mill DKK from the Danish Research Councils (FNU) for a project on ”Decoherence in cavity quantum electro-dynamics”. The project will finance two PhD students and one postdoc, and is a joint effort with Niels Gregersen, Nika Akopian and Morten Willatzen.

June 2015: Gyeong Cheol Park et al. have a post-deadline paper “III-V/SOI vertical-cavity laser structure for 120 Gbit/s speed” accepted for the Integrated Photonics Research, Silicon and Nano Photonics (IPR) meeting, to be held in Boston, USA.

May 2015: Masoomeh Taherkhani starts her PhD project.

May 2015: Jesper Mørk interviewed for Politiken on "Da verden så lyset" and "Verdens største maskine kører på lys".

May 2015: Anders Nysteen leaves the group to work in industry.

May 2015: Dagmawi Alemayehu Bekele starts his PhD project on photonic crystal Fano lasers. The project is funded by Villum Fonden via the NATEC Centre.

April 2015: Lecture by Prof. Kurt Busch from the Humboldt University in Berlin.

April 2015: Anders Nysteen defends his PhD Few-photon Non-linearities in Nanophotonic Devices for Quantum Information Technology.

April 2015: The research project Optiske teknologier til fremtidens datacentre, supported by the Danish Innovation Foundation, has started. The project is a collaboration between DTU Fotonik and Mellanox Technologies Denmark, and the PI is Assoc. Prof. Il-Sug Chung.

April 2015: Gyeong Cheol Park et al. publish the paper Hybrid vertical-cavity laser with lateral emission into a silicon waveguide in Laser Photonics Rev.

March 2015: Yi Yu et al. publish the paper Nonreciprocal transmission in a nonlinear photonic-crystal Fano structure with broken symmetry in Laser Photonics Rev.

March 2015: Nika Akopian authors an APS Viewpoint Single Dot Meets Single Ion on the results in a recent Phys. Rev. Lett. paper.

March 2015: Vladimir Topic and Andreas Dyhl Østerkryger start their PhD projects.

February 2015: Yi Yu defends his PhD Photonic Crystal Nanocavity Devices for Nonlinear Signal Processing.

February 2015: Niels Gregersen gives an invited talk at the 8th Annual Meeting Photonic Devices in Berlin, Germany.

January 2015: As part of his PhD studies Jakob Rosenkrantz de Lasson leaves for a 3-months research stay at EPFL with the group of Prof. Eli Kapon.

January 2015: Teppo Häyrynen starts as a postdoc.

December 2014: Innovationsfonden grants 15 mill DKK for a 3-year project "Ultrahigh-speed optical transport module technologies for large data centres". The project is a collaboration between DTU Fotonik and Mellanox Technologies Denmark, and the PI is Assoc. Prof. Il-Sug Chung.

October 2014: Villum Fonden awards 30 mill DKK for a 5-year prolongation of the NATEC Centre of Excellence. The centre is headed by Prof. Jesper Mørk.

October 2014: Yaohui Chen leaves the group to work in industry.

October 2014: Anders Nysteen returns from a 3 month research stay with Prof. Dirk Englund's group at MIT.

October 2014: New paper entitled "Photonic Crystal Fano Laser: Terahertz Modulation and Ultrashort Pulse Generation" published in Physical Review Letters.

October 2014: Guest lecture "Phonon effects in driven cavity quantum dot systems" by Dr. Ahsan Nazir, University of Manchester.

October 2014: Dara McCutcheon gives an invited talk at Quantum Optics VII in Mara del Plata, Argentina.

October 2014: Nika Akopian joins the group as associate professor in experimental quantum photonics.

September 2014: New paper entitled "Slow-light-enhanced gain in active photonic crystal waveguides" published in Nature Communications. The work is covered in Danish at

September 2014: Niels Gregersen co-authors the textbook "Numerical Methods in Photonics".

September 2014: Jesper Mørk presents an invited talk at EOSAM 2014 in Berlin on "Optical Signal processing using Fano effects in photonic crystals".

September 2014: Andreas Dyhl Østerkryger and Stig Salomonsen start on their master projects, with Niels Gregersen as main supervisor and Jakob Rosenkrantz de Lasson as co-supervisor.

August 2014: Anders Mølbjerg Lund leaves the group to work in industry.

August 2014: Niels Gregersen presents an invited talk at PIERS 2014 in Guangzhou on "The photonic nanowire: An emerging platform for a highly efficient quantum light source".

August 2014: Jesper Mørk presents an invited talk at SPIE Optics and Photonics Conference in San Diego on "Theory and experimental demonstration of enhanced gain in slow light photonic crystal waveguides".

July 2014: Niels Gregersen presents an invited talk at Integrated Photonics Research (IPR) in San Diego on "The photonic nanowire: A highly efficient single-photon source".

July 2014: As part of his PhD studies, Anders Nysteen leaves for a 3-months research stay at MIT with the group of Prof. Dirk Englund.

June 2014: Niels Gregersen receives a Sapere Aude research grant from the Danish Research Councils. The topic is Linear Optics Quantum Information Technology, and the grant amounts to 7 million DKK over 3 years. Two PhD students and a postdoc will be hired.

June 2014: Philip Trøst Kristensen presents an invited talk at the Collaborative Conference on 3D & Materials Research in Korea on "Quasinormal modes in optical microcavities and plasmonic nanoresonators".

May 2014: Niels Gregersen presents an invited talk at Photonics North, Montréal, on "Single-photon source engineering using a Modal Method".

May 2014: Dagmawi Alemayehu Bekele joins the group as research assistant.

May 2014: Philip Trøst Kristensen leaves the group to take up a postdoc position in Prof. Kurt Busch’s group at the Humboldt University in Berlin.

March 2014: Our work on random lasing in Anderson-localized modes in photonic crystal structures is published in Nature Nanotechnology. The work has been performed at DTU Fotonik in collaboration with the Niels Bohr Institute.

February 2014: Il-Sug Chung presents an invited talk at Photonics West, San Francisco, on "130-nm tunable grating-mirror VCSEL".

February 2014: Lecture by Prof. Eli Kapon, Ecole Polytechnique Fédérale de Lausanne.

February 2014: Anders Mølbjerg Lund defends his PhD Theory of few-emitter semiconductor nanostructures: Lasing and resonance fluorescence.

October 2013: Lecture by Dr Swook Hann, Head of Laser-IT Research Center & Photonics System Lab., Korea Photonics Technology Institute

September 2013: Lecture by Dr Pascale Senellart, Laboratoire de Photonique et de Nanostructures, CNRS-LP, France.

September 2013: Lecture by Prof. Andrea Fiore, Photonics and Semiconductor Nanophysics, TU/e, The Netherlands. 

August 2013: Kristian Høeg Madsen defended his PhD Coherent Dynamics of Quantum Dots in Photonic-Crystal Cavities.

June 2013: Mikkel Heuck defended his PhD All-Optical Switching in Photonic Crystal Cavities.

May 2013: Honors symposium for Prof. Emeritus Jørn M. Hvam held at DTU.

May 2013: Per Kær Nielsen returns from a 4 month research stay with Prof. Jelena Vukovic’ group at Stanford University.

May 2013: Yuntian Chen leaves the group to return to China.

January 2013: Il-Sug Chung, Niels Gregersen and Dmitry Turchinovich give invited talks at Photonics West.

January 2013: Per Kær Nielsen departs for a 4 month research stay with Prof. Jelena Vukovic’ group at Stanford University.

January 2013: Per Lunnemann returns from a 1-year research stay with Prof. Femius Koonderink at AMOLF in Amsterdam. Per will continue his research financed by a 2-year postdoctoral grant from the Danish research Councils.

November 2012: Jesper Mørk gives an invited talk at ACP 2012 - Asia Communications and Photonics Conference in Guangzhou, China, on “Integrated photonics enabled by slow light”.

October 2012: Among 11 nominees Jesper Mørk won the prize for PhD Supervisor of the Year.

September 2012: Jin Liu successfully defended his PhD thesis Semiconductor nanomembranes for quantum photonics: quantum light sources and optomechanics.

August 2012: Sara Ek and Troels Suhr Skovgaard both leave the group to take up positions within research and development at the company Foss in Hillerød.

August 2012: Per Kær Nielsen successfully defended his PhD thesis Fundamental properties of devices for quantum information technology

May 2012: Sara Ek successfully defended her Ph.D. thesis Characterization of pulse propagation in photonic crystal structures and ultrafast dynamics in quantum dots.

March 2012: Troels Suhr Skovgård successfully defended his PhD thesis Modeling of Coupled Nano-Cavity Lasers.

Adiabatic micropillar

Have a look at our most recent research results under Publications.