The effect of defect layer on transmissivity and light field distribution in general function photonic crystals

TL;DR

This paper theoretically investigates how a defect layer influences transmissivity and electric field distribution in general function photonic crystals, revealing new characteristics that aid in photonic crystal design.

Contribution

It introduces a theoretical analysis of defect layer effects in GFPCs with specific refractive index functions, highlighting novel behaviors distinct from conventional photonic crystals.

Findings

Defect layer position significantly affects transmission intensity.

Refractive index variations alter electric field distribution.

Number of periods influences overall transmissivity.

Abstract

We have theoretically investigated a general function photonic crystals (GFPCs) with defect layer, and choose the line refractive index function for two mediums $A$ and $B$, and analyze the effect of defect layer's position, refractive indexes and period numbers on the transmission intensity and the electric field distribution. We obtain some new characters that are different from the conventional PCs, which should be helpful in the design of photonic crystals.