Metamaterial-enabled arbitrary on-chip spatial mode manipulation. (IMAGE)
Caption
a, Dielectric perturbations are located at the “peaks” or “valleys” in the transverse mode profile of high-order mode to maximize the mode overlap integral. b, Schematic view of the metamaterial TE₀-TE₂ building block, exploiting fully-etched dielectric slots on a silicon waveguide. c-d, Topology layout of arbitrary even-order and odd-order mode operators, respectively. The waveguide width is directly determined by mathematical formulas for a given mode order. e-f, SEM photos of the TE₀-TE₅ and TE₀-TE₂₀ mode operators, respectively.
Credit
Jinlong Xiang, Zhiyuan Tao, Xingfeng Li, Yaotian Zhao, Yu He, Xuhan Guo, and Yikai Su
Usage Restrictions
Credit must be given to the creator.
License
CC BY