Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Gerd-A. Hoffmann"'
Autor:
Leif Kochanneck, John Rönn, Andreas Tewes, Gerd-Albert Hoffmann, Sauli Virtanen, Philipp Maydannik, Sami Sneck, Andreas Wienke, Detlev Ristau
Publikováno v:
Applied Optics. 62:3112
Atomic layer deposition (ALD) has been proven as an excellent method for depositing high-quality optical coatings due to its outstanding film quality and precise process control. Unfortunately, batch ALD requires time-consuming purge steps, which lea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63621e7c72da839ab6af764268a60390
https://doi.org/10.1364/ao.477448
https://doi.org/10.1364/ao.477448
Autor:
Leif Kochanneck, Andreas Tewes, Gerd-Albert Hoffmann, Kalle Niiranen, John Rönn, Hector Velasco, Sami Sneck, Andreas Wienke, Detlev Ristau
Publikováno v:
Oxide-based Materials and Devices XIII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f02038a1f53691d8f7075d0ae2b340b
https://doi.org/10.1117/12.2612173
https://doi.org/10.1117/12.2612173
Autor:
Anna K. Rüsseler, Philipp Gehrke, Gerd A. Hoffmann, Guido Schönsee, Axel Thiel, Martina Vitt, Andreas Wienke, Detlev Ristau
Publikováno v:
Optical Interference Coatings Conference (OIC) 2022.
To unlock the benefits of thin-film filters, produced by means of ion beam sputtering, for compact, hybrid integrated optical systems, we have implemented a sacrificial-substrate approach to create high-precision, miniaturized, substrate-free filters
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2d4adfcc9e8e0ff99173216c1206be9
https://doi.org/10.1364/oic.2022.md.5
https://doi.org/10.1364/oic.2022.md.5
Autor:
Gerd-Albert Hoffmann, Alexander Wienke, Stefan Kaierle, Ludger Overmeyer, Mohd-Khairulamzari Hamjah, Thomas Reitberger, Jochen Zeitler, Jörg Franke, Lukas Lorenz, Karlheinz Bock, Carsten Backhaus, Florian Loosen, Norbert Lindlein
Publikováno v:
Optical Polymer Waveguides ISBN: 9783030928537
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59bfc79d5fc78bdad2823c25cf59ae17
https://doi.org/10.1007/978-3-030-92854-4_7
https://doi.org/10.1007/978-3-030-92854-4_7
Autor:
Leif Kochanneck, Andreas Tewes, Gerd-Albert Hoffmann, Kalle Niiranen, John Rönn, Sami Sneck, Andreas Wienke, Detlev Ristau
Publikováno v:
Optical Interference Coatings Conference (OIC) 2022.
Ta2O5 and SiO2 films coated by rotary atomic layer deposition were studied. Investigations proved low absorption 3.1 ppm, respectively 6.0 ppm as well as uniformity 1.55 % and 2.71 % for growth rates up to 0.18 nm/sec. (e-mail: l.kochanneck@lzh.de).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3523a7857d16af010e7241226a7e5843
https://doi.org/10.1364/oic.2022.tc.1
https://doi.org/10.1364/oic.2022.tc.1
Publikováno v:
Optical Polymer Waveguides ISBN: 9783030928537
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77f825db32128593e732c992cfe6d508
https://doi.org/10.1007/978-3-030-92854-4_4
https://doi.org/10.1007/978-3-030-92854-4_4
Autor:
Anna K. Rüsseler, Philipp Gehrke, Florian Carstens, Gerd-A. Hoffmann, Guido Schönsee, Axel Thiel, Martina Vitt, Andreas Wienke, Detlev Ristau
Publikováno v:
Applied Optics. 62:B188
We have created high-precision, miniaturized, substrate-free filters, based on ion beam sputtering on a sacrificial substrate. The sacrificial layer is cost efficient and environmentally friendly and can be dissolved using only water. We demonstrate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22c899a09d743dc3ab08a435db690f10
https://doi.org/10.1364/ao.478083
https://doi.org/10.1364/ao.478083
Publikováno v:
Novel Optical Systems, Methods, and Applications XXIV.
Printing of optical waveguides is an approach to large-volume implementation of optical data transmission in conventional electronic systems. Flexographic printing can be used to apply optical waveguides with circular-segment cross-sections to planar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5ae5ca7ba16fb065f2dc0feb5b5d691
https://doi.org/10.1117/12.2596378
https://doi.org/10.1117/12.2596378
Publikováno v:
Novel Optical Systems, Methods, and Applications XXIV.
While glass is an ideal material for optics, only a few microprocessing technologies are available. These technologies are usually limited regarding precision and freedom of design. A novel glass micromachining process is Laser Induced Deep Etching (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8504912e18c105022e285a3806b5881f
https://doi.org/10.1117/12.2596376
https://doi.org/10.1117/12.2596376
Autor:
Mohd-Khairulamzari Hamjah, Gerd-Albert Hoffmann, Lukas Lorenz, Florian Hanesch, Ludger Overmeyer, Krzysztof Nieweglowski, Karlheinz Bock, Jörg Franke
Publikováno v:
2021 IEEE 71st Electronic Components and Technology Conference (ECTC).
In this paper we investigate the long-term stability and reliability of a 3D-Opto-MID package for multimode waveguide bus coupling. Preliminary works proved an interruption-free coupling approach with asymmetric coupling rates depending on the coupli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd656293d244be2bdd6157511cef9380
https://doi.org/10.1109/ectc32696.2021.00014
https://doi.org/10.1109/ectc32696.2021.00014