Proceedings ArticleDOI
4*4 transfer-matrix method for defect mode splitting in magnetic photonic crystal
Li Yan,Yanling Han,Shupeng Wang +2 more
- pp 4741-4744
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TLDR
In this article, the defect mode splits into two modes under the external magnetic fields and with the increase of the magnetic field strength the two peaks separate to both sides, which present an effective way to new type of tunable filters.Abstract:
Using the 4*4 transfer-matrix method go through the transmittance formula of one dimensional magnetic photonic crystal with and without external magnetic fields, respectively. Numerical simulation results show that defect-mode splitting critically depend on the magneto-optical gyrotropy factor and defect mode in right-hand and left-hand circularly polarized move toward lower and higher frequency in the present of a magnetic field, respectively. Our results prove out the fact that the defect mode splits into two modes under the external magnetic fields and with the increase of the magnetic field strength the two peaks separate to both sides. Considering the dispersion of the light, we get the same conclusion, which present an effective way to new type of tunable filters.read more
Citations
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Patent
Broadband three-port optical circulator with introduced triangular-guide column
Ouyang Zhengbiao,Qiong Wang +1 more
TL;DR: In this paper, a broadband three-port optical circulator with a triangular guide column, comprising two-dimensional triangular lattice photonic crystals constituted by first medium material columns in a low refractive index background medium and three corresponding ports provided with three photonic crystal branch waveguide and distributed at the periphery of the photonic columns.
References
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Journal Article
Low-voltage optical devices based on liquid crystal photonic bandgap fibres
TL;DR: Liquid Crystal Photonic Bandgap Fibers are described, which are PCFs infiltrated with Liquid Crystals (LCs) in order to obtain increased fiber functionality and a thermo-optic fiber switch with an extinction ratio of 60dB and tunable PBGs using thermosensitive tuning of the LC.
Journal ArticleDOI
Optical devices based on liquid crystal photonic bandgap fibres
TL;DR: In this paper, the authors describe Liquid Crystal Photonic Bandgap Fibers, which are PCFs infiltrated with Liquid Crystals (LCs) in order to obtain increased fiber functionality.
Journal ArticleDOI
Microcavities in photonic crystals : mode symmetry, tunability, and coupling efficiency
TL;DR: The properties of resonant modes which arise from the introduction of local defects in two-dimensional ~2D! and 3D photonic crystals are investigated and it is shown that the properties of these modes can be controlled by simply changing the nature and size of the defects.
Journal ArticleDOI
Tunable two-dimensional photonic crystals using liquid crystal infiltration
S. W. Leonard,J. P. Mondia,H. M. van Driel,Ovidiu Toader,Sajeev John,Kurt Busch,A. Birner,Ulrich Gösele,Volker Dr. Lehmann +8 more
TL;DR: In this article, a liquid crystal was infiltrated into the air pores of a macroporous silicon photonic crystal with a triangular lattice pitch of 1.58 and a band gap wavelength range of 3.3-5.7 µm.
Journal ArticleDOI
Temperature tuning of the stop band in transmission spectra of liquid-crystal infiltrated synthetic opal as tunable photonic crystal
TL;DR: In this article, the optical stop band in the transmission spectra of opals shifts drastically by the infiltration of liquid crystals and the stop band is also found to shift at the phase transition points with changing temperature.