Tunable Integrated-Optics Nanoscaled Devices Based on Magnetic Photonic Crystals

TL;DR

This paper investigates magnetic photonic crystals for integrated optics, revealing angle-dependent Faraday effects and tunable bandgap modes, with initial steps toward practical device implementation.

Contribution

It extends transfer matrix formalism to oblique incidence and demonstrates tunable spectral properties of magnetic photonic crystals for optical applications.

Findings

Faraday effect depends on incidence angle

Bandgap defect modes can be tuned by magnetic fields

Practical implementation steps are discussed

Abstract

Magnetooptical properties of magnetic photonic crystals have been investigated in the view of their possible applications for the modern integrated-optics devices. A "transfer matrices" formalism was expanded for the case of oblique light incidence on the periodic nanoscaled magnetic multilayered systems. Several new effects such as the Faraday effect dependence on the incidence angle and the tunability of the bandgap defect modes spectral location by external magnetic fields were found. Several possibilities of one-dimensional magnetic photonic crystals applications for the optical devices are discussed. Initial steps towards the practical implementation of the proposed devices are reported.