Terahertz tunable reflectance of extrinsic photonic crystals by external magnetic field

In this work, we theoretically investigate the reflectance of an extrinsic photonic crystal (PC) which is composed of bulk semiconductor (InSb) under the effect of a spatially periodic magnetic field. We consider the magneto-optical effect where the magnetic field is parallel to the direction of wav...

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Bibliographic Details
Published inThe European physical journal. D, Atomic, molecular, and optical physics Vol. 71; no. 12; pp. 1 - 6
Main Author El-Naggar, Sahar A.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2017
Springer Nature B.V
Subjects
Applications of Nonlinear Dynamics and Chaos Theory
Atomic
Energy gap
Faraday effect
Indium antimonide
Intermetallic compounds
Magnetic fields
Molecular
Optical and Plasma Physics
Photonic band gaps
Photonic crystals
Physical Chemistry
Physics
Physics and Astronomy
Quantum Information Technology
Quantum Physics
Reflectance
Regular Article
Spectroscopy/Spectrometry
Spintronics
Wave propagation
Optical Phenomena and Photonics
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Summary:In this work, we theoretically investigate the reflectance of an extrinsic photonic crystal (PC) which is composed of bulk semiconductor (InSb) under the effect of a spatially periodic magnetic field. We consider the magneto-optical effect where the magnetic field is parallel to the direction of wave propagation (Faraday effect). In addition, we take into account the lossy nature of InSb. Numerical results which have been conducted by the transfer matrix method show that our structure behaves like conventional PC with switchable electromagnetic band gaps. We show that our structure can be used as a tunable reflector that has the advantages of being tunable by the magnetic field and it fits to work in terahertz frequency range. Graphical abstract
ISSN:1434-6060
1434-6079
DOI:10.1140/epjd/e2017-80585-7