3 papers
physics.optics2017
Inverse design method for metalens with optical vortices towards light focusing through localized phase retardation
Yongbo Deng, Ulrike Wallrabe, Yihui Wu +1
Metalenses can achieve diffraction-limited focusing through localized phase manipulation of the incoming light beam. Because these structures are ultrathin, less than a wavelength,…
physics.optics2016
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…
physics.optics2016
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…