Patent ID: 9632247
Date: 2017-04-25
CPC Classifications: G02B,H01Q,H01S

Claim:
1. A terahertz-wave device comprising: a two dimensional photonic crystal slab; lattice points periodically arranged in the two dimensional photonic crystal slab, the lattice points configured to diffract terahertz waves in photonic bandgap frequencies in photonic band structure of the two dimensional photonic crystal slab in order to prevent the terahertz waves from existing in a plane of the two dimensional photonic crystal slab; a two dimensional photonic crystal waveguide disposed in the two dimensional photonic crystal slab, the two dimensional photonic crystal waveguide formed of a line defect of the lattice points; and a diode device disposed in a trench formed in the two dimensional photonic crystal waveguide so that a top surface of the diode device is formed at a height equal to or lower than a height of a surface of the two dimensional photonic crystal waveguide.