Deformable Optical Metasurfaces With Dynamic Reconfiguration

As one type of novel two-dimensional artificial micro-nano structure, metasurfaces have exhibited strong potential for application in light manipulation in recent decades. However, there is a substantial calling for next-generation optical metasurfaces endowed with remarkable reconfiguration capabilities for practical applications in increasingly miniaturized and integrated opto-electronic devices. In this paper, we review the recent progress of deformable optical metasurfaces mainly fabricated by focused-ion-beam-based nano-kirigami and focus on their excellent performance and applications in the active control of phase, polarization, optical chirality, nonlinear radiation, etc. Deformable metasurfaces with their exceptional flexibility and reconfigurability provide a novel and feasible strategy for the design of functional micro-nano-optoelectronic devices, and immensely promote the development of emerging strainoptronics.