Lars Hagedorn Frandsen

Lars Hagedorn Frandsen

Senior Researcher

DTU FOTONIK
Department of Photonics Engineering

Nanophotonic Devices

Technical University of Denmark

Ørsteds Plads

Building 345A, room 180

2800 Kgs. Lyngby

Ph.
Fax +45 45 93 65 81
E-mail lhfr@fotonik.dtu.dk
ORCID 0000-0001-9145-2210
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2017
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Slow-light-enhanced energy efficiency for graphene microheaters on silicon photonic crystal waveguides

Yan, Siqi ; Zhu, Xiaolong ; Frandsen, Lars Hagedorn ; Xiao, Sanshui ; Mortensen, N. Asger ; Dong, Jianji ; Ding, Yunhong
in journal: Nature Communications (ISSN: 2041-1723) (DOI: http://dx.doi.org/10.1038/ncomms14411), vol: 8, 2017

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: http://dx.doi.org/10.1038/ncomms14411

 

Bandwidth-adaptable silicon photonic differentiator employing a slow light effect

Yan, Siqi ; Cheng, Ziwei ; Frandsen, Lars Hagedorn ; Ding, Yunhong ; Zhou, Feng ; Dong, Jianji ; Zhang, Xinliang
in journal: Optics Letters (ISSN: 0146-9592) (DOI: http://dx.doi.org/10.1364/OL.42.001596), vol: 42, issue: 8, pages: 1596-1599, 2017

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: http://dx.doi.org/10.1364/OL.42.001596

 

Comparison of Five Computational Methods for Computing Q Factors in Photonic Crystal Membrane Cavities

Novitsky, Andrey ; de Lasson, Jakob Rosenkrantz ; Frandsen, Lars Hagedorn ; Gutsche, Philipp ; Burger, Sven ; Kim, Oleksiy S. ; Breinbjerg, Olav ; Ivinskaya, Aliaksandra ; Wang, Fengwen ; Sigmund, Ole ; Häyrynen, Teppo ; Lavrinenko, Andrei ; Mørk, Jesper ; Gregersen, Niels
part of: Proceedings of 19th International Conference on Transparent Optical Networks (ISBN: 978-1-5386-0858-6), 2017, IEEE,
Presented at:
19th International Conference on Transparent Optical Networks, 2017, Girona

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: http://dx.doi.org/10.1109/ICTON.2017.8024813

 

Comparison of Five Numerical Methods for Computing Quality Factors and Resonance Wavelengths in Photonic Crystal Membrane Cavities

Gregersen, Niels ; de Lasson, Jakob Rosenkrantz ; Frandsen, Lars Hagedorn ; Kim, Oleksiy S. ; Breinbjerg, Olav ; Wang, Fengwen ; Sigmund, Ole ; Ivinskaya, Aliaksandra ; Lavrinenko, Andrei ; Gutsche, Philipp ; Burger, Sven ; Häyrynen, Teppo ; Mørk, Jesper
part of: Proceedings of CLEO®/Europe-EQEC 2017, 2017,
Presented at:
CLEO®/Europe-EQEC 2017, 2017, Munich

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2017

 

Robust photonic differentiator employing slow light effect in photonic crystal waveguide

Yan, Siqi ; Cheng, Ziwei ; Frandsen, Lars Hagedorn ; Ding, Yunhong ; Zhou, Feng ; Dong, Jianji ; Zhang, Xinliang
part of: CLEO: Science and Innovations 2017 (ISBN: 978-1-943580-27-9), 2017, Optical Society of America OSA,
Presented at:
CLEO: Science and Innovations 2017, 2017, San Jose

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: http://dx.doi.org/10.1364/CLEO_AT.2017.JW2A.139

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Ultra-high efficiency, fast graphene micro-heater on silicon

Yan, Siqi (Invited author) ; Zhu, Xiaolong (Invited author) ; Frandsen, Lars Hagedorn (Invited author) ; Xiao, Sanshui (Invited author) ; Mortensen, N. Asger (Invited author) ; Dong, Jianji (Invited author) ; Ding, Yunhong (Invited author)
part of: Proceedings of 8th International Conference on Metamaterials, Photonic Crystals and Plasmonics, 2017,
Presented at:
8th International Conference on Metamaterials, Photonic Crystals and Plasmonics, 2017, Seoul

Type: Article in proceedings (Peer reviewed)     |     Invited contribution

Status: Published     |    Year: 2017

 

Benchmarking five computational methods for analyzing large photonic crystal membrane cavities

Gregersen, Niels ; de Lasson, Jakob Rosenkrantz ; Frandsen, Lars Hagedorn ; Häyrynen, Teppo ; Lavrinenko, Andrei ; Mørk, Jesper ; Wang, Fengwen ; Sigmund, Ole ; Kim, Oleksiy S. ; Breinbjerg, Olav ; Ivinskaya, Aliaksandra ; Gutsche, Philipp ; Burger, Sven
part of: Proceedings of the 2017 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), pages: 89-90, 2017, IEEE,
Presented at:
17th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD17) , 2017, Kgs. Lyngby

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: http://dx.doi.org/10.1109/NUSOD.2017.8010005

2016
 

On nanostructured silicon success

Sigmund, Ole ; Jensen, Jakob Søndergaard ; Frandsen, Lars Hagedorn
in journal: Nature Photonics (ISSN: 1749-4885) (DOI: http://dx.doi.org/10.1038/nphoton.2016.26), vol: 10, issue: 3, pages: 142-143, 2016

Type: Letter (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: http://dx.doi.org/10.1038/nphoton.2016.26

 

Comparison of four computational methods for computing Q factors and resonance wavelengths in photonic crystal membrane cavities

de Lasson, Jakob Rosenkrantz ; Frandsen, Lars Hagedorn ; Burger, Sven ; Gutsche, Philipp ; Kim, Oleksiy S. ; Breinbjerg, Olav ; Sigmund, Ole ; Mørk, Jesper ; Gregersen, Niels
part of: Proceedings of the 7th International Conference on Metamaterials, Photonic Crystals and Plasmonics, 2016,
Presented at:
7th International Conference on Metamaterials, Photonic Crystals and Plasmonics, 2016, Malaga

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2016

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Topology optimized mode multiplexing in silicon-on-insulator photonic wire waveguides

Frellsen, Louise Floor ; Ding, Yunhong ; Sigmund, Ole ; Frandsen, Lars Hagedorn
in journal: Optics Express (ISSN: 1094-4087) (DOI: http://dx.doi.org/10.1364/OE.24.016863), vol: 24, issue: 15, pages: 16866-16873, 2016

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: http://dx.doi.org/10.1364/OE.24.016863