Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Lucas Alber"'
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 1, Pp 1-11 (2018)
In certain applications, modal wavefront sensors (MWFSs) can outperform zonal wavefront sensors, which are widely used due to their high flexibility. In this paper, a holography-based MWFS as described is developed for the fast position control of a
Externí odkaz:
https://doaj.org/article/47e33c7eccc942b8b6aeab8739ea91d9
Publikováno v:
Journal of the European Optical Society-Rapid Publications, Vol 13, Iss 1, Pp 1-10 (2017)
Abstract Background Focusing with a 4 π parabolic mirror allows for concentrating light from nearly the complete solid angle, whereas focusing with a single microscope objective limits the angle cone used for focusing to half solid angle at maximum.
Externí odkaz:
https://doaj.org/article/c539923d01f14206af25a408d843ceb4
Autor:
Bharath Srivathsan, Martin Fischer, Lucas Alber, Markus Weber, Markus Sondermann, Gerd Leuchs
Publikováno v:
New Journal of Physics, Vol 21, Iss 11, p 113014 (2019)
We present a technique based on high resolution imaging to measure the absolute temperature and the heating rate of a single ion trapped at the focus of a deep parabolic mirror. We collect the fluorescence light scattered by the ion during laser cool
Externí odkaz:
https://doaj.org/article/da725052fd1448dfba3ac475f7bac5f4
Autor:
Johannes Westermann, Lucas Alber
Publikováno v:
2022 European Control Conference (ECC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ebbdb0675bca66fb50b63db7a9faded
https://doi.org/10.23919/ecc55457.2022.9838230
https://doi.org/10.23919/ecc55457.2022.9838230
Autor:
Patricia Martin-Pimentel, Alicia Sánchez-Tercero, Thomas Marynowski, Nils Höpcke, Frank Heine, Lucas Alber, Herwig Zech, David Hasler, Jan Klement
Publikováno v:
Free-Space Laser Communications XXXII.
With the EDRS program, the European Data Relay System, a private public partnership program between the European Space Agency ESA and Airbus Defence and Space ADS, laser communication has entered the commercial service since November 2016 [1]. Curren
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4b13895bf6c98870d8a630b8d55c636
https://doi.org/10.1117/12.2545095
https://doi.org/10.1117/12.2545095
Publikováno v:
Journal of the European Optical Society-Rapid Publications, Vol 13, Iss 1, Pp 1-10 (2017)
Background Focusing with a 4 π parabolic mirror allows for concentrating light from nearly the complete solid angle, whereas focusing with a single microscope objective limits the angle cone used for focusing to half solid angle at maximum. Increasi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e9484135361349d612052c325fa4cbe
http://link.springer.com/article/10.1186/s41476-017-0043-y
http://link.springer.com/article/10.1186/s41476-017-0043-y
Autor:
Frank Heine, Jan Klement, Henrik von Lukowicz, Nils Heidler, Lucas Alber, Stefan Risse, Enrico Hilpert, Josep Maria Perdigues Armengol, Ralf Bölter
Publikováno v:
EPJ Web of Conferences, Vol 215, p 01005 (2019)
The design of an optical housing for laser telecommunication in space is improved by topology optimization. Different mechanical and thermal boundary conditions are considered while minimizing the overall weight of the housing. As a proof-of-concept
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9e1ad87895e72b2844be4eb974be7e1
https://www.epj-conferences.org/articles/epjconf/pdf/2019/20/epjconf_eos18_01005.pdf
https://www.epj-conferences.org/articles/epjconf/pdf/2019/20/epjconf_eos18_01005.pdf
Autor:
Lucas Alber, Thomas Arnold, Jens Bauer, Markus Sondermann, Gerd Leuchs, Melanie Ulitschka, Frank Frost
Publikováno v:
Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF).
Direct aluminium surface figuring is succeeded for the first time up to 1 µm in height while preserving surface roughness. Sub-aperture reactively-driven ion beam tools allow ultra-precision figure error-correction of aspherical and freeform mirrors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::512ac8f6e5fe8cdee125b189d44012f2
https://doi.org/10.1364/noma.2018.nom3d.3
https://doi.org/10.1364/noma.2018.nom3d.3
Autor:
Martin Fischer, Gerd Leuchs, Markus Sondermann, Lucas Alber, Markus Weber, Bharath Srivathsan
Publikováno v:
Exploring the World with the Laser ISBN: 9783319643458
We discuss and measure the phase shift imposed onto a radially polarized light beam when focusing it onto an \( {}^{174}{\mathrm{Yb}}^{+} \) ion. In the derivation of the expected phase shifts, we include the properties of the involved atomic levels.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c555c76402ed77fca8ebc92509c3ee0
https://doi.org/10.1007/978-3-319-64346-5_22
https://doi.org/10.1007/978-3-319-64346-5_22
Autor:
Martin Fischer, Markus Sondermann, Lucas Alber, Markus Weber, Bharath Srivathsan, Gerd Leuchs
Publikováno v:
Applied Physics B. 123
We discuss and measure the phase shift imposed onto a radially polarized light beam when focusing it onto an $^{174}\text{Yb}^{+}$ ion. In the derivation of the expected phase shifts we include the properties of the involved atomic levels. Furthermor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db12bb9ba51b7a553997afff00ba29e8
https://doi.org/10.1007/s00340-016-6609-3
https://doi.org/10.1007/s00340-016-6609-3