A new varied-time photonic crystals

TL;DR

This paper introduces a novel one-dimensional varied-time photonic crystal with time-dependent refractive indices, demonstrating dynamic transmissivity and field distribution, which could enable advanced optical devices like switches.

Contribution

It proposes the first varied-time photonic crystal with time-varying refractive indices and analyzes its dynamic optical properties, differing from static conventional photonic crystals.

Findings

Dynamic transmissivity and field distribution observed

Potential for designing new optical switches

Refractive indices vary periodically in time

Abstract

In this paper, we have firstly proposed a new one-dimensional varied-time photonic crystals, i.e., the refractive indices of media $A$ and $B$ are the time functions. We consider the varied-time photonic crystals of refractive indices period variation and calculate the transmissivity and electronic field distribution with and without defect layer, which are different from the conventional photonic crystals, which transmissivity and electronic field distribution are static, but the varied-time photonic crystals transmissivity and electronic field distribution are dynamic. We have obtained some new results for the varied-time photonic crystals, which should be help to design new type dynamic optical devices, such as the accurate optical switch and so on.