Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Reinhard Caspary"'
Autor:
Sebastian Paul, Fabian Schwartau, Markus Krueckemeier, Reinhard Caspary, Carsten Monka-Ewe, Joerg Schoebel, Wolfgang Kowalsky
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 921-931 (2021)
In this paper we show the equivalence of near-field beamforming and backward-wave reconstruction algorithm. The proof is carried out analytically with two different approaches, using the principle of stationary phase from a signal processing point of
Externí odkaz:
https://doaj.org/article/a61cf21d33734d54997b1a221415aded
Publikováno v:
Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVI.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79659a071f88bdd2bd73692f5399294e
https://doi.org/10.1117/12.2648030
https://doi.org/10.1117/12.2648030
Autor:
Carsten Monka-Ewe, Fabian Schwartau, Sebastian Paul, Wolfgang Kowalsky, Markus Krueckemeier, Joerg Schoebel, Reinhard Caspary
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 921-931 (2021)
IEEE Open Journal of Antennas and Propagation 2 (2021) p. 921-931. https://doi.org/10.1109/OJAP.2021.3107444--https://doi.org/10.1109/OJAP--https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=8566058--http://www.bibliothek.uni-regensburg.de/ezeit/?3006283--2637-6431
IEEE Open Journal of Antennas and Propagation 2 (2021) p. 921-931. https://doi.org/10.1109/OJAP.2021.3107444--https://doi.org/10.1109/OJAP--https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=8566058--http://www.bibliothek.uni-regensburg.de/ezeit/?3006283--2637-6431
In this paper we show the equivalence of near-field beamforming and backward-wave reconstruction algorithm. The proof is carried out analytically with two different approaches, using the principle of stationary phase from a signal processing point of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9810adf2ea32da2aaea4bb8869a03aaf
https://ieeexplore.ieee.org/document/9521564/
https://ieeexplore.ieee.org/document/9521564/
Publikováno v:
Digital Holography and 3-D Imaging 2022.
To achieve better quality and generation speed, we generate holograms from adaptively sized and placed points, modeled as 2D Gaussians. We compute them with a Rayleigh-Sommerfeld convolution directly in a compact, radially symmetric look-up table.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a870a33a820f9967de5bbce52f1bd7a9
https://doi.org/10.1364/dh.2022.w3a.4
https://doi.org/10.1364/dh.2022.w3a.4
Autor:
Reinhard Caspary
Publikováno v:
ICTON
There are many indications, that the 21st century will be the century of optics and photonics. In the last century, microelectronics established many technologies, which show increasing impact on the field of optical technologies like silicon photoni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b834d6388d036faab463c236844ddec8
https://doi.org/10.1109/icton51198.2020.9203319
https://doi.org/10.1109/icton51198.2020.9203319
Autor:
Robert Evert, Wolfgang Kowalsky, Daniel Zaremba, Reinhard Caspary, Florian Jakobs, Hans-Hermann Johannes
Publikováno v:
Polymer International. 67:1164-1169
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80b14d324af04783d8e2ac48a0fff6af
https://doi.org/10.1002/pi.5603
https://doi.org/10.1002/pi.5603
Publikováno v:
Microelectronic Engineering. 181:29-33
In this work, cost efficient hybrid polymer based Bragg grating ridge waveguide resonators were successfully fabricated by a cost-effective combined nanoimprint and photolithography process. By using this hybrid process, optical features with the siz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78e0cf580508a18284faf67086bfe96b
https://doi.org/10.1016/j.mee.2017.07.002
https://doi.org/10.1016/j.mee.2017.07.002
Autor:
Sebastian Franke, Wolfgang Kowalsky, Annemarie Pucci, Reinhard Caspary, Sebastian Beck, Hans-Hermann Johannes
Publikováno v:
MRS Advances. 2:933-938
The growth mechanism and the barrier performance of Al2O3, SiO2 and a binary Si-Al oxide (SiAlxOy) deposited by spatial atomic layer deposition (SALD) were investigated. Alumina and silica were deposited by TMA and BDEAS with growth-per-cycles (GPC)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b15540bc0968845671d7c36e79fe801
https://doi.org/10.1557/adv.2017.117
https://doi.org/10.1557/adv.2017.117
Autor:
Ouacef Charfi, Hans-Hermann Johannes, Jing Becker, Class Miller, Marko Cehovski, Wolfgang Kowalsky, Reinhard Caspary
Publikováno v:
2019 24th Microoptics Conference (MOC).
Organic lasers are promising laser sources when it comes to downsizing and flexibility. Especially Lab-on-Chip and sensor applications which are based on ridge waveguide systems face the challenge of an efficient light coupling into the waveguide net
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b68495b7fcdfa71a344fe5b1cf9174e
https://doi.org/10.23919/moc46630.2019.8982801
https://doi.org/10.23919/moc46630.2019.8982801
Autor:
Reinhard Caspary, Detlev Ristau, Wolfgang Kowalsky, Simon Spelthann, Hans-Hermann Johannes, Axel Ruehl, Sebastian Balendat, Jana Kielhorn, Marko Cehovski, Pen Yiao Ang, Stefanie Unland, Florian Jakobs, Jonas Thiem, Joerg Neumann, Matthias Beck
Publikováno v:
ICTON
Polymers doped with laser dyes are promising materials for solid state dye lasers. The development of dye doped polymer optical fibers is presented. Furthermore, experimental results from polymer bulk and fiber lasers based on these optical materials
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb8f6718ae493401fcf906e326d69cab
https://doi.org/10.1109/icton.2019.8840399
https://doi.org/10.1109/icton.2019.8840399