A terahertz isolator based on a silicon heterojunction photonic crystal

作者：Yuan, Minghui^*; Zhao, Di

来源：Optik, 2015, 126(23): 4472-4474.

DOI：10.1016/j.ijleo.2015.08.022

• Terahertz isolator
• Photonic crystal
• Heterojunction
• Negative refraction

A terahertz isolator based on a heterojunction silicon photonic crystal is analyzed numerically by the three dimensional finite difference time domain method (3D-FDTD), which can be operated at room temperature and without external magnetic field. Simulation results show that the maximum isolation is related to the hole radii of two photonic crystals. A maximum isolation of 25 dB can be obtained when the hole radius ratio is optimum (RI/R2 = 0.49 at 0.52 THz).

• 出版日期2015
• 单位上海理工大学