Difference frequency generator and difference frequency generation method

摘要

PROBLEM TO BE SOLVED: To generate efficiently electromagnetic waves such as terahertz waves using a photonic crystal waveguide.;SOLUTION: A difference frequency generator has: a light source 10 that generates signal light and pump light; and a first photonic crystal waveguide 20 that guides the signal light and pump light, and generates difference frequency between the signal light and pump light.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT