Tunable Chiral Optics in All-Solid-Phase Reconfigurable Dielectric Nanostructures.

ABSTRACT: Subwavelength nanostructures with tunable compositions and geometries show favorable optical functionalities for the implementation of nanophotonic systems. Precise and versatile control of structural configurations on solid substrates is essential for their applications in on-chip devices. Here, we report all-solid-phase reconfigurable chiral nanostructures with silicon nanoparticles and nanowires as the building blocks in which the configuration and chiroptical response can be tailored on-demand by dynamic manipulation of the silicon nanoparticle. We reveal that the optical chirality originates from the handedness-dependent coupling between optical resonances of the silicon nanoparticle and the silicon nanowire via numerical simulations and coupled-mode theory analysis. Furthermore, the

SUBMITTER: Li J 

PROVIDER: S-EPMC7855985 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature