Nanoscale precision brings experimental metalens efficiencies on par with theoretical promises

Autor: Villads Egede Johansen, Uǧur Meriç Gür, Jade Martínez-Llinás, Jesper Fly Hansen, Akbar Samadi, Maria Skak Vestergaard Larsen, Theodor Nielsen, Fredrik Mattinson, Moritz Schmidlin, N. Asger Mortensen, Ulrich J. Quaade

Publikováno v: Communications Physics, Vol 7, Iss 1, Pp 1-7 (2024)

Abstract Metalenses are flat lenses, where sub-wavelength, so-called meta-atoms manipulate the electric field to perform a given lens function. Compared to traditional lenses, the two main drawbacks of metalenses are their achromatic limitations and

Externí odkaz: https://doaj.org/article/d70bee930513453c804fa34dc6fd8db3

Master origination by 248 nm DUV lithography for plasmonic color generation

Autor: Theodor Nielsen, Alicia Johansson, Anders Kristensen, Ilja Czolkos, Xiaolong Zhu

Publikováno v: Zhu, X, Czolkos, I, Johansson, A, Nielsen, T & Kristensen, A 2021, ' Master origination by 248 nm DUV lithography for plasmonic color generation ', Applied Physics Letters, vol. 118, no. 14, 141103 . https://doi.org/10.1063/5.0046163

Plasmonic color metasurfaces enable high resolution, ink-free color decoration and sensing devices. This work presents a full solution from design of plasmonic color elements suitable for master origination by 248 nm Deep Ultraviolet (DUV) lithograph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66387bebd31aae866c43308a841a631c
https://orbit.dtu.dk/en/publications/195281c2-2087-465e-b565-7be49d5bea5a

Design of Hierarchical Surfaces for Tuning Wetting Characteristics

Autor: Theodor Nielsen, Nikolaos Kehagias, Lasse Højlund Thamdrup, Ariadna Fernández, Alicia Johansson, Brian Bilenberg, Achille Francone, Clivia M. Sotomayor Torres, Markus Guttmann

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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Patterned surfaces with tunable wetting properties are described. A hybrid hierarchical surface realized by combining two different materials exhibits different wetting states, depending on the speed of impingement of the water droplets.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a41c2d7f08bfd8a1596402545972a3bb
https://doi.org/10.1021/acsami.6b13615

Batch fabrication of nanopatterned graphene devices via nanoimprint lithography

Autor: Patrick Rebsdorf Whelan, Abhay Shivayogimath, Theodor Nielsen, Kristian Smistrup, David M. A. Mackenzie, Dirch Hjorth Petersen, Peter Bøggild, Birong Luo, Sara A. Messina

Publikováno v: Applied Physics Letters
Mackenzie, D, Smistrup, K, Whelan, P R, Luo, B, Shivayogimath, A, Nielsen, T, Petersen, D H, Messina, S A & Bøggild, P 2017, ' Batch fabrication of nanopatterned graphene devices via nanoimprint lithography ', Applied Physics Letters, vol. 111, 193103 . https://doi.org/10.1063/1.5010923

Previous attempts to tune the electrical properties of large-scale graphene via nanopatterning have led to serious degradation of the key electrical parameters that make graphene a desirable material for electronic devices. We use thermal nanoimprint

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7d445dbe9b4d0ed02003707c1e0447c

Nanoimprinted DWDM laser arrays on indium phosphide substrates

Autor: Kristian Smistrup, Andrej Mironov, Stephen Rishton, Johan Eriksen, Ferdous Khan, T.H. Bro, Jesper Nørregaard, Anders Kristensen, Mark Emanuel, Anil Haraksingh Thilsted, Theodor Nielsen, Yin Zhang, Brian Bilenberg, Yong Ma, Ole Hansen

Publikováno v: Microelectronic Engineering. 123:149-153

Display Omitted We replace e-beam patterning with nanoimprint lithography patterning.The nanoimprinted devices have equal quality as commercially available devices.The devices have 40mW output and more than 50dB side mode suppression ratio.Nanoimprin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::47295be2a3d540fc67009a8250a33be6
https://doi.org/10.1016/j.mee.2014.07.004