Tunable Photonic Band Gap in a One-Dimensional Lattice Substituted Multiferroic - Dielectric Photonic Crystals in Near Infrared Region

Sanjay Srivastava^1,

¹Department of Materials Science and Metallurgical Engineering, Maulana Azad National Institute of Technology, Bhopal, India

Cite this paper:
Sanjay Srivastava. Tunable Photonic Band Gap in a One-Dimensional Lattice Substituted Multiferroic - Dielectric Photonic Crystals in Near Infrared Region. Journal of Optoelectronics Engineering. 2014; 2(1):7-20. doi: 10.12691/joe-2-1-2

Abstract

This document gives formatting instructions for authors preparing papers for publication in the journal. Authors are encouraged to prepare manuscripts directly using this template. This template demonstrates format requirements for the JournalIn order to investigate band gap tunability in polar oxides, the photonic band gap of antiferromagnetic-dielectric binary photonic crystal can be significantly enlarged by the substitution of the lattice atoms with other suitable atoms which forms a solid solution with the parent lattice. In this paper we measured the optical properties of a series of Bi (Fe1−xMnx) O3 thin films. Two substrates with different orientation of the crystal plane were selected which were also acting as dielectric materials in multilayer photonic crystals. The absorption response of the mixed metal solid solutions is approximately a linear combination of the characteristics of the two end members; as a result it demonstrates straightforward band gap tunability in this system. First, the band gap enlargement due to the addition of the Mn+3 atoms in BFO lattice is examined in the case of normal incidence. Next, in the oblique incidence, a wider omnidirectional band gap can be obtained beyond 30o angle of incidence. By substitution of Mn+3 in BFO lattice, enhanced band gap was observed in the different optical region due to a large band gap of the existing materials.

Keywords:
photonic crystals multiferroic tunability and optical band gap lattice substitution

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