Tunable characteristics of one dimensional magnetic photonic crystal composed with single-negative materials

• Published in: Optik (Stuttgart) Vol. 124; no. 24; pp. 6631 - 6635
• Main Authors: Thapa, Khem B., Pandey, Praveen C., Singh, Prabal P., Ojha, Sant P.
• Format: Journal Article
• Language: English
• Published: Elsevier GmbH 01.12.2013
• Subjects: Angle of incidence; Band structure of solids; Dispersion; Dispersions; Frequency ranges; Magnetic photonic crystal; Magnetic structure; Mathematical analysis; Photonic crystals; Transmittance; Tunneling property; Zero-ɛ and zero-μ; Zero-ɛ and zero-μ; 42.70.Qs; 78.67.Pt; Magnetic photonic crystal; Transmittance; Tunneling property; Dispersion
• ISSN: 0030-4026; 1618-1336
• DOI: 10.1016/j.ijleo.2013.05.113

In this paper, we present the study of dispersion and transmittance characteristics of one dimensional magnetic photonic crystal composed by single negative indexed materials. For this structure, we have considered magnetic negative (MNG) with ɛ=1 and μ<0 and electric negative (ENG) with ɛ<0 and μ=4. We used simple transfer matrix method and Bloch's theorem for its analytical explanations. Analyzing transmittance characteristics of the proposed structure, we obtain the tunneling of certain frequency range where as the dispersion characteristic shows total forbidden for the same range for TM mode. The tunable property is found inside the band structure due to zero-ɛ, zero-μ and magnetic behavior of the material. To identify zero-ɛ and zero-μ of the structure, we have calculated the dispersion and the transmittance of the magnetic structure of MNG–ENG on different angles of incidence and thickness of layers.