Journal ArticleDOI
Heterostructure photonic crystal channel drop filters using mirror cavities
TLDR
In this article, a channel drop filter using mirror cavities is proposed to achieve a three output port filter in two-dimensional (2D) photonic crystals. And the theoretical mechanism behind these structures is explained by coupling mode theory.Abstract:
In this paper, a heterostructure channel drop filter in two-dimensional photonic crystals based on mirror cavities is investigated. First a channel drop filter using mirror cavities is presented. Then in order to achieve a three output port filter, we present a heterostructure built on a hybrid two-dimensional (2D) photonic crystal that includes two different refractive indices. Our numeric simulation with the finite-difference time-domain (FDTD) technique shows that the heterostructure has acceptable output efficiency over 80%. Finally, by applying a theoretical approach (coupled mode theory), the physical mechanism behind these structures is explained.read more
Citations
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Journal ArticleDOI
Photonic crystal channel drop filter based on ring-shaped defects for DWDM systems
TL;DR: In this paper, a two-dimensional photonic crystal slabs in silicon-on-insulator platforms are used for channel drop filters for dense wavelength division multiplexing systems.
Journal ArticleDOI
Three output port channel-drop filter based on photonic crystals
TL;DR: This work investigates a single ring and shows that backward and forward dropping is possible in the third communication window, and adds another ring and waveguide to develop a new channel-drop filter design based on 3x3 PC ring resonators.
Journal ArticleDOI
Photonic crystal power splitter and wavelength multi/demultiplexer based on directional coupling
TL;DR: In this article, a two-dimensional photonic crystal power splitter based on directional coupling was proposed and the effects of changing coupling length and distance between parallel waveguides on output transmissions were investigated.
Journal ArticleDOI
Synthesis and photonic band gap characterization of high quality photonic crystal heterostructures
TL;DR: In this paper, high quality photonic crystal heterostructures with a thin titania planar defect layer between its two constitutional photonic crystals were fabricated and their structural and optical properties were analyzed.
Journal ArticleDOI
Characteristic investigation of high quality three-dimensional photonic crystals fabricated by self-assembly: theory analysis, simulation and measurement
TL;DR: In this article, a sealed suction setup, filled with silica gel spheres, is used to provide an optimal growing condition with better stability and reproducibility for fabricating photonic crystals (PCs).
References
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Journal ArticleDOI
Inhibited Spontaneous Emission in Solid-State Physics and Electronics
TL;DR: If a three-dimensionally periodic dielectric structure has an electromagnetic band gap which overlaps the electronic band edge, then spontaneous emission can be rigorously forbidden.
Book
Computational Electrodynamics: The Finite-Difference Time-Domain Method
TL;DR: This paper presents background history of space-grid time-domain techniques for Maxwell's equations scaling to very large problem sizes defense applications dual-use electromagnetics technology, and the proposed three-dimensional Yee algorithm for solving these equations.
Journal ArticleDOI
High- Q photonic nanocavity in a two-dimensional photonic crystal
TL;DR: A silicon-based two-dimensional photonic-crystal slab is used to fabricate a nanocavity with Q = 45,000 and V = 7.0 × 10-14 cm3; the value of Q/V is 10–100 times larger than in previous studies, underlying the realization that light should be confined gently in order to be confined strongly.
Journal ArticleDOI
Trapping and emission of photons by a single defect in a photonic bandgap structure
TL;DR: In this article, a single defect is created inside a two-dimensional photonic bandgap structure, and photons propagating through a linear waveguide are trapped by the defect, which then emits them to free space.
Journal ArticleDOI
Photonic devices based on in-plane hetero photonic crystals.
TL;DR: Photonic crystals (PCs) are optical materials of periodic refractive index, designed to block light of certain wavelengths, and artificial defects can be introduced into PCs to allow light to be manipulated.
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