Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Adrian Grewe"'
Autor:
Phuong-Ha Cu-Nguyen, Adrian Grewe, Patrik Feßer, Andreas Seifert, Stefan Sinzinger, Hans Zappe
Publikováno v:
Light: Science & Applications, Vol 5, Iss 4, Pp e16058-e16058 (2015)
Abstract We present the design, fabrication and characterization of hydraulically-tunable hyperchromatic lenses for two-dimensional (2D) spectrally-resolved spectral imaging. These hyperchromatic lenses, consisting of a positive diffractive lens and
Externí odkaz:
https://doaj.org/article/ceebf063d0834f4a8b61d51de34aec32
Publikováno v:
Sensors and Actuators A: Physical. 276:68-75
In the case of clinical ventilation, sensors are needed that analyze the carbon dioxide concentration during the exhalation cycle. For devices capable to individually control and adjust parameters for each patient, the analysis of the breathing condi
Autor:
Julia Baldauf, M. Schädel, Adrian Grewe, N. Thronicke, Stefan Sinzinger, Thomas Ortlepp, Dennis Mitrenga, Dominik Karolewski, H.-G. Ortlepp
Publikováno v:
Tagungsband.
Autor:
Stefan Sinzinger, Adrian Grewe
Publikováno v:
Optics letters. 41(20)
Helix phase plates are used in a variety of applications from optical trapping to astronomy. Tunable helix phase plates based on the Alvarez–Lohmann principle allow variation of the topological charge of the helix by rotating the phase plates with
Publikováno v:
Applied optics. 55(10)
A key feature of Alvarez lenses is that they may be tuned in focal length using lateral rather than axial translation, thus reducing the overall length of a focus-tunable optical system. Nevertheless the bulk of classical microsystems actuators limit
Autor:
Matthias Hillenbrand, Adrian Grewe, Beate Mitschunas, Stefan Sinzinger, Mohamed Bichra, Christian Wenzel, Patrick Feßer, Xuan Ma
Publikováno v:
aot. 1:187-194
The combination of diffractive and refractive elements in hybrid optical systems allows for precise control of the longitudinal chromatic aberration. We provide comprehensive design strategies for hybrid hyperchromatic lenses that maximise the longit
Autor:
Stefan Sinzinger, Martin Hoffmann, Csaba Endrödy, Adrian Grewe, Matthias Hillenbrand, Robert Weiss
Publikováno v:
Applied optics. 54(15)
We present two versions of a chromatic confocal matrix sensor for the snapshot acquisition of three-dimensional objects. The first version contains separate illumination and detection pinhole arrays, while the second version uses a single pinhole arr
Publikováno v:
SPIE Proceedings.
In a novel hyperspectral imaging concept based on confocal chromatic microscopy, a pinhole array (matrix of pinholes) has to be scanned across an intermediate image plane to capture the full object plane. In this paper a two-axis stepping microdrive
Autor:
Mathias Krüger, Volker Cimalla, Pascal Becker, Jörg Teubert, Ulrich T. Schwarz, Jörg Schörmann, Pascal Hille, Stefan Sinzinger, Adrian Grewe, Martin Eickhoff, Roman Kleindienst
The photoluminescence intensity of group III nitrides, nanowires, and heterostructures (NWHs) strongly depends on the environmental H(2) and O(2) concentration. We used this opto-chemical transducer principle for the realization of a gas detector. To
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77170159587541b3f9fff61b15fdd903
https://publica.fraunhofer.de/handle/publica/239257
https://publica.fraunhofer.de/handle/publica/239257
Publikováno v:
Applied optics. 53(32)
We present signal-generation models for chromatic confocal imaging systems with illumination and detection pinholes of finite size: a collinear model that considers neither aberrations nor diffraction effects, a geometrical model that accounts for ab