Terahertz (THz) spectrum holds immense potential for applications in chemical sensing, biomedical diagnostics, and security screening. However, conventional THz spectrometers rely on mechanical delay ...

Schematic diagram providing an overview of this review. Liquid crystals can be categorized into nematic, smectic, columnar, and cholesteric liquid crystals. Recently, metasurfaces have been integrated ...

Metasurfaces are two-dimensional (2D), nanoengineered surfaces that interact strongly with electromagnetic waves and can control light with remarkable precision. These ultra-thin layers can be used to ...

Dynamic control of optical beam direction is an emerging technology in a wide range of applications, including light detection and ranging (LiDAR), freespace optical communication, laser display, and ...

Active boundary heating and cooling can make a small object look much larger to thermal sensors, a step toward compact thermal camouflage and new ways to steer heat in devices. (Nanowerk Spotlight) ...

Figure 1. Concept of active metasurface with substantial broadband tunability enabled by RME. (a) Schematic of a tunable MIM resonator for dynamic light manipulation via RME. (b) Simulated magnetic ...