131 citations · 417 across the 18 of their papers we have counts for
18 papers
Multiphysics simulation of the aspherical deformation of piezo-glass membrane lenses including hysteresis, fabrication and non-linear effects
Florian Lemke, Yasmina Frey, Binal P Bruno +5
In this paper we present and verify the non-linear simulation of an aspherical adaptive lens based on a piezo-glass sandwich membrane with combined bending and buckling actuation.…
Diffraction-limited axial scanning in thick biological tissue employing an aberration correcting adaptive lens
Katrin Philipp, Florian Lemke, Stefan Scholz +4
Diffraction-limited focusing deep into biological tissue is challenging due to spherical aberrations that lead to a broadening of the focal spot particularly in axial direction. Wh…
Properties of piezoceramic materials in high electric field actuator applications
Binal P Bruno, Ahmed Raouf Fahmy, Moritz Stürmer +2
In this paper, we compare the performance of 8 PZT ceramics and one PMN-PT material for typical bending actuator applications. This includes the measurement of non-linear transvers…
Depth-controlled Bessel beams
Angelina Müller, Matthias C. Wapler, Ulrike Wallrabe
We present a ring aperture with independently switchable segments for the three-dimensional control of quasi propagation invariant beams. We demonstrate that our liquid crystal des…
Topological in-plane polarized piezo actuation for compact adaptive lenses with aspherical correction
Florian Lemke, Moritz Stürmer, Ulrike Wallrabe +1
In this contribution, we investigate the effects of using in-plane polarized piezo actuators with topological buckling displacement to drive glass-piezo composite membranes for ada…
Single-Sided Contacting of Out-of-Plane Polarized Piezo Films for Fluid Membrane Lenses
Moritz Stürmer, Matthias C. Wapler, Ulrike Wallrabe
We present an adaptive lens which tunes its focal length with a glass membrane that is deformed by an integrated piezo bending actuator. A particular challenge in the fabrication o…