Reconsideration of photonic tunneling through undersized waveguides

TL;DR

This paper critically examines photonic tunneling in undersized waveguides, developing a comprehensive theoretical model that accounts for the waveguide's structure, advancing understanding beyond previous simplified quantum analogies.

Contribution

It introduces a detailed theoretical framework for photonic tunneling in cut-off waveguides, addressing limitations of prior models that ignored wave structure.

Findings

New theoretical model for photonic tunneling

Reveals limitations of previous quantum analogy approaches

Provides insights into waveguide structure effects

Abstract

All the previous studies on photonic tunneling are just based on a simple and directly analogy with a one-dimensional quantum-mechanical tunneling, without taking into account the horizontal structure of electromagnetic waves along the waveguide, such that they are oversimplified and incomplete. Here we present a more serious deliberation on photonic tunneling through cut-off waveguides, and obtain a strictly theoretical model with some new results.