Often, active and tunable nanophotonic metamaterials yield an emergent electromagnetic response that is more than the sum of the parts, providing reconfigurable or real-time control of the amplitude, phase, wavevector, polarization, and frequency of light. The examples to date are impressive, setting...
Optically active materials and light-matter interactions Spectral range and key applications Structural color and functional applications Active metasurface for flat optics Photonic memory for integrated device Thermal radiation with tunable photonics Tunable photonics for terahertz plasmonic modulation Summary and...
Reconfigurable plasmonics is driving an extensive quest for active materials that can support a controllable modulation of their optical properties for dynamically tunable plasmonic structures. Here, polymorphic gallium (Ga) is demonstrated to be a very
Programmable nanophotonic planar resonator filter-absorber based on phase-change InSbTe Israel Alves Oliveira I. L. Gomes de Souza V. F. Rodriguez-Esquerre Scientific Reports(2023) Numerical analysis of hafnium oxide and phase change material-based multi-layered infrared and visible frequency sensor fo...
2, Tobias Steinle1, Lingling Huang3, Thomas Taubner4, Matthias Wuttig4, Thomas Zentgraf5 and Harald Giessen1 Compact nanophotonic elements exhibiting adaptable properties are essential components for the miniaturization of powerful optical technologies such as adaptive optics and spatial light modulators....
Recently, based on various tunable materials, reconfigurable and program- mable metasurfaces have achieved the multiplexing of incident polarization, frequency and angle18,32–35. How- ever, how to realize direction-dependent and reconfigur- able THz metasurface is still an untapped area. Here, we...
Optical activity, also called circular birefringence, is known for two hundred years, but its applications for topological photonics remain unexplored. Unlike the Faraday effect, the optical activity provokes rotation of the linear polarization of light
To fully leverage the innate duality of chiral metamaterials for future optical technologies, it is essential to make such chiroptical responses tunable via external means. Here we report an optical metamaterial with tailored chiroptical effects in the nonlinear regime, which exhibits a pronounced shift...
Dynamic manipulation of electromagnetic (EM) waves with multiple degrees of freedom plays an essential role in enhancing information processing. Currently, an enormous challenge is to realize directional terahertz (THz) holography. Recently, it was demon
The influences of the pitch size, the absorption loss of the GST material, and the substrate CaF2 are thoroughly examined and can be referred to Supplementary Note 6 and Supplementary Figs 8 and 9. Fig. 3 Experimental realization of active tunable anapole states in structured GST nanodisks. a...