@article{Mikhail Y. Shalaginov_Sensong An_Yifei Zhang_Fan Yang_Clayton Fowler_Hualiang Zhang_Juejun Hu_Tian Gu_2020, title={Reconfigurable All Dielectric Metasurfaces based on Optical Phase Change Materials: Design Approaches}, volume={35}, url={https://journals.riverpublishers.com/index.php/ACES/article/view/7647}, abstractNote={<p>Optical metasurface is a recently emerged paradigm for controlling light propagation, which enables implementation of ultra-compact optical devices with extended functionalities. Nowadays the main challenge in the field is to realize active metasurfaces with high quality, high efficiency, and large tuning range. Here we present a design approach for constructing a twostate reconfigurable metalens made of low-loss optical phasechange material (O-PCM). The metalens design is capable to produce diffraction limited focusing, large change in focal length (from 1.5 mm to 2mm), and decent focusing efficiency of about 20% in both states. The proposed design methodology is generic and can be easily extended towards constructing metasurfaces, which can switch between two or more arbitrary phase maps.</p>}, number={11}, journal={The Applied Computational Electromagnetics Society Journal (ACES)}, author={Mikhail Y. Shalaginov and Sensong An and Yifei Zhang and Fan Yang and Clayton Fowler and Hualiang Zhang and Juejun Hu and Tian Gu}, year={2020}, month={Nov.}, pages={1445–1446} }