Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Aleksandar Nesic"'
Autor:
Aleksandar Nesic, Matthias Blaicher, Pablo Marin-Palomo, Christoph Füllner, Sebastian Randel, Wolfgang Freude, Christian Koos
Publikováno v:
Light: Advanced Manufacturing, Vol 4, Iss 3, Pp 251-262 (2023)
Multi-photon lithography has emerged as a powerful tool for photonic integration, allowing to complement planar photonic circuits by 3D-printed freeform structures such as waveguides or micro-optical elements. These structures can be fabricated with
Externí odkaz:
https://doaj.org/article/dfde18d7ccb64d12b75dac514c965e90
Autor:
Aleksandar Nesic, Matthias Blaicher, Emilio Orlandini, Tudor Olariu, Maria Paszkiewicz, Fernando Negredo, Pascal Kraft, Mariia Sukhova, Andreas Hofmann, Willy Dörfler, Carsten Rockstuhl, Wolfgang Freude, Christian Koos
Multi-photon lithography allows to complement planar photonic integrated circuits (PIC) by in-situ 3D-printed freeform waveguide structures. However, design and optimization of such freeform waveguides using time-domain Maxwell's equations solvers of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a5a126ed39d946967b5f0804108c0ce
https://doi.org/10.48550/arxiv.2201.09807
https://doi.org/10.48550/arxiv.2201.09807
Autor:
Sebastian Randel, Matthias Blaicher, Andreas Hofmann, Wolfgang Freude, Matthias Lauermann, T. Hoose, Yasar Kutuvantavida, Christian Koos, Martin Nöllenburg, Aleksandar Nesic
Publikováno v:
Optics express, 27 (12), 17402
Optics Express
Optics Express
Complex photonic-integrated circuits (PIC) may have strongly non-planar topologies that require waveguide crossings (WGX) when realized in single-layer integration platforms. The number of WGX increases rapidly with the complexity of the circuit, in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43c003ad88814edbac169b836cf52941
https://pubmed.ncbi.nlm.nih.gov/31252950
https://pubmed.ncbi.nlm.nih.gov/31252950
Publikováno v:
Facta universitatis - series: Electronics and Energetics. 30:391-402
The paper discusses the problem of side lobe suppression in the radiation pattern of printed antenna arrays with different 3D reflector surfaces. The antenna array of eight symmetrical pentagonal dipoles with corner reflectors of various angles is ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3205fd9e32d23636eba21dbf3ab8a24
https://doi.org/10.2298/fuee1703391m
https://doi.org/10.2298/fuee1703391m
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 15:421-424
The detailed research, full development, and experimental realization of a new printed antenna array with cosecant squared-shaped beam pattern are presented. Some advantages of proposed antenna, as compared to previously realized microstrip cosecant-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50ce53d13216f0ec2d094f2830ffdbc0
https://doi.org/10.1109/lawp.2015.2449257
https://doi.org/10.1109/lawp.2015.2449257
Autor:
Christian Koos, Wolfgang Freude, T. Hoose, Aleksandar Nesic, Philipp-Immanuel Dietrich, Pablo Marin-Palomo, Ute Troppenz, Martin Moehrle, Matthias Blaicher, Andreas Hofmann, M. R. Billah, Nicole Lindenmann, Sebastian Randel
Publikováno v:
Optica, 5 (7), 876-883
Optica
Optica
Efficient coupling of III-V light sources to silicon photonic circuits is one of the key challenges of integrated optics. Important requirements are low coupling losses, as well as small footprint and high yield of the overall assembly, along with th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8706a59ca011c83d8dd4cb36f9f16cbf
https://publica.fraunhofer.de/handle/publica/256804
https://publica.fraunhofer.de/handle/publica/256804
Autor:
Wolfgang Freude, Matthias Blaicher, Christian Koos, Aleksandar Nesic, M. R. Billah, T. Hoose, Yilin Xu, Sebastian Randel, Andreas Hofmann, Juned N. Kemal, Philipp-Immanuel Dietrich
Publikováno v:
2018 European Conference on Optical Communication (ECOC)
ECOC
ECOC
We give an overview of our research towards exploiting direct-write 3D laser lithography as a tool for advanced photonic integration. The technique offers new perspectives for a wide variety of applications, ranging from photonic wire bonding and mul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0492806cca513a5608993e5fd3f12ed4
https://publikationen.bibliothek.kit.edu/1000100594
https://publikationen.bibliothek.kit.edu/1000100594
Publikováno v:
Frequenz
A printed antenna array consisting of 10 wideband symmetrical pentagonal dipoles is presented. The feed network of impedance transformers is employed to provide appropriate amplitude and phase distribution necessary to obtain flat top beam pattern. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4628a00395986ab0f87284c6e5efcde
https://cer.ihtm.bg.ac.rs/handle/123456789/2336
https://cer.ihtm.bg.ac.rs/handle/123456789/2336
Publikováno v:
Serbian Journal of Electrical Engineering, Vol 12, Iss 1, Pp 99-108 (2015)
Serbian Journal of Electrical Engineering (2015) 12(1):99-108
Serbian Journal of Electrical Engineering (2015) 12(1):99-108
In this work we present the benefits of using pentagonal dipoles as radiating elements instead of classical printed dipoles in the design of frequency scanning antenna arrays. We investigate how impedance of pentagonal dipoles, which can be changed i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0dbd69b74aae297ed8347837b04537f
https://doi.org/10.2298/sjee1501099b
https://doi.org/10.2298/sjee1501099b
Publikováno v:
2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS).
Coplanar waveguide (CPW) fed slot antennas are attractive due to fabrication simplicity and ease of integration with active devices. In this paper, the modelling a CPW-fed slot antenna arrays with different dielectric substrates is presented. The exa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ee18776326d070ce19a4f53baa19ace
https://doi.org/10.1109/telsks.2017.8246239
https://doi.org/10.1109/telsks.2017.8246239