Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Matthias C Wapler"'
Autor:
Matthias C Wapler, Frederik Testud, Patrick Hucker, Jochen Leupold, Dominik von Elverfeldt, Maxim Zaitsev, Ulrike Wallrabe
Publikováno v:
PLoS ONE, Vol 16, Iss 5, p e0250903 (2021)
We present the development of a dual-mode imaging platform that combines optical microscopy with magnetic resonance microscopy. Our microscope is designed to operate inside a 9.4T small animal scanner with the option to use a 72mm bore animal RF coil
Externí odkaz:
https://doaj.org/article/ea7211c335ec404daf76e7eb60c21c7e
Publikováno v:
Micromachines, Vol 14, Iss 6, p 1192 (2023)
We present the prototype and analytical model of a miniaturized impact actuation mechanism, providing a fast out-of-plane displacement to accelerate objects against gravity, allowing for freely moving objects and hence for large displacements without
Externí odkaz:
https://doaj.org/article/a08cd6f236f6454288c60723f14da6ec
Publikováno v:
Sensors, Vol 23, Iss 12, p 5493 (2023)
We demonstrate a method for self-sensing of a magnetically actuated prism that can be used, e.g., in a feedback-loop without the need of additional sensors. In order to use the impedance of the actuation coils as a measurement parameter, we first obt
Externí odkaz:
https://doaj.org/article/cc121087b1b543b79f4fc1396ff7fe51
Publikováno v:
Micromachines; Volume 14; Issue 6; Pages: 1192
We present the prototype and analytical model of a miniaturized impact actuation mechanism, providing a fast out-of-plane displacement to accelerate objects against gravity, allowing for freely moving objects and hence for large displacements without
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::0e051cdc6956374ec66fe0d45be3d8f1
Publikováno v:
Optics express. 30(26)
We present two versions of tunable achromatic doublets based on each two piezoelectrically actuated glass membranes that create the surface of fluid volumes with different dispersions: a straightforward back-to-back and a more intricate stack of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::323b3e102c355c6838fdbf7b361ec7ff
https://pubmed.ncbi.nlm.nih.gov/36558604
https://pubmed.ncbi.nlm.nih.gov/36558604
Publikováno v:
Applied Optics. 62:3072
We compare different aspects of the robustness to environmental conditions of two different types of piezo-actuated fluid-membrane lenses: a silicone membrane lens, where the piezo actuator indirectly deforms the flexible membrane through fluid displ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be4628f1fcfe48a4119ee4bd6bc989c6
https://doi.org/10.1364/ao.485639
https://doi.org/10.1364/ao.485639
Publikováno v:
Soft Matter. 15:779-784
We present a new and accurate method to determine the Poisson's ratio of PDMS, using thermal expansion and an optical surface profilometer. The Poisson's ratio of Sylgard 184 was found to be ν = 0.4950 ± 0.0010 and for Sylgard 182, ν = 0.4974 ± 0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef9f72a446b0acdd72de37ac31ca5b3d
https://doi.org/10.1039/c8sm02105h
https://doi.org/10.1039/c8sm02105h
Publikováno v:
2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers).
In this paper we show the proof of concept for a magnetically actuated bi-axial tunable prism. Our modular design gives a high robustness and efficient fabrication. Even without optimizations, we achieved physical tilt angles of ±8° to ±9,6° and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::015508f06e2ce070f537e1265a36fd34
https://doi.org/10.1109/transducers50396.2021.9495513
https://doi.org/10.1109/transducers50396.2021.9495513
Autor:
Jürgen Czarske, Wenjie Wang, Nektarios Koukourakis, Florian Lemke, Ulrike Wallrabe, Matthias C. Wapler
Publikováno v:
Journal of Optical Microsystems. 1
Point-scanning-based microscopy systems require combination of axial and lateral scanning to obtain three-dimensional (3D) data. Axial scanning was commonly achieved by mechanical displacement of the objective or the sample. To improve, various adapt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fc92f012c2d16fef6e40af63e112f80
https://doi.org/10.1117/1.jom.1.2.024501
https://doi.org/10.1117/1.jom.1.2.024501
Autor:
Matthias C, Wapler
Publikováno v:
Optics express. 28(4)
We present a highly compact and fast varifocal lens with aspherical tunability based on an active piezo-glass-piezo sandwich membrane. Using an optimized geometry, improved fabrication and compliant elastomer structures together with an index-matched
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::f510495486710f72e110b3328dcb5b4c
https://pubmed.ncbi.nlm.nih.gov/32121727
https://pubmed.ncbi.nlm.nih.gov/32121727