Journal ArticleDOI
Ultra-high-Q optical filter based on photonic crystal ring resonator
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TLDR
The plane wave expansion and finite-difference time-domain methods are used to extract photonic band gap and investigate the photonic behavior of the proposed structure, respectively.Abstract:
In this study, a photonic crystal ring resonator with a triangular lattice is used to design an optical filter. The proposed structure is able to filter the central wavelength of 1548 nm with a transmission coefficient of over 95%. Moreover, this structure has an ultra-high-quality factor (Q) of about 1290. With altering the features of the structure including the refractive index, the lattice constant and the radius of the rods in the resonator core, their effects on the central wavelength of the filter, transmission coefficient, quality factor and bandwidth are investigated. The plane wave expansion and finite-difference time-domain methods are used to extract photonic band gap and investigate the photonic behavior of the proposed structure, respectively.read more
Citations
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Journal ArticleDOI
Novel Biosensor Detection of Tuberculosis Based on Photonic Band Gap Materials
Arafa H. Aly,Doaa Mohamed,Zaky A. Zaky,Z. S. Matar,N. S. Abd El-Gawaad,A. S. Shalaby,Fatima Tayeboun,M. A. Mohaseb,M. A. Mohaseb +8 more
TL;DR: In this article, a novel design of an optical biosensor will be used as a tuberculosis detector based on a resonance cavity with high sensitivity in one-dimensional photonic crystals demonstrated theoretically.
Journal ArticleDOI
Ultra-fast and compact all-optical half adder using 2D photonic crystals
TL;DR: Using a two-dimensional photonic crystal lattice, a compact and simple structure has been introduced in the present study to construct an all-optical half adder, which operates under the interference effect as discussed by the authors.
Journal ArticleDOI
Design and analysis of a novel four‐channel optical filter using ring resonators and line defects in photonic crystal microstructure
TL;DR: In this paper, a new design of an all-optical filter using photonic crystal microstructure was reported, which has high transmission power, high quality factor, and low cross-talk.
Journal ArticleDOI
Hybrid all-optical infrared metal-insulator-metal plasmonic switch incorporating photonic crystal bandgap structures
TL;DR: In this article, a novel hybrid all-optical infrared switch based on metal-insulator-metal plasmonic and one dimensional photonic crystal structures is introduced, which can be used as a basis to design other complex optical circuits.
Journal ArticleDOI
A novel design for 2-bit optical analog to digital (A/D) converter based on nonlinear ring resonators in the photonic crystal structure
TL;DR: In this paper, a new configuration for full optical analog to digital convertor (OADC) based on nonlinear materials has been proposed, which is the combination of two main parts; Quantization block, followed by an optical coder.
References
More filters
Journal ArticleDOI
Channel drop filters in photonic crystals
TL;DR: An analysis of channel drop filter structures composed of two waveguides and an optical resonator system shows that 100% transfer can occur by creating resonant states of different symmetry, and by forcing an accidental degeneracy between them.
Journal ArticleDOI
Photonic band-structure effects in the reflectivity of periodically patterned waveguides
Vasily N. Astratov,D. M. Whittaker,I. S. Culshaw,R. M. Stevenson,M. S. Skolnick,Thomas F. Krauss,R.M. De La Rue +6 more
TL;DR: In this paper, the authors report sharp resonant features in the reflectivity spectra of semiconductor waveguides patterned with periodic lattices of deep holes, which arise from coupling of incident light to the photonic bands of the lattice.
Book
Photonic Crystals: Physics and Practical Modeling
Igor A. Sukhoivanov,Igor Guryev +1 more
TL;DR: In this paper, the authors present a method for band structure computations of 1D and 3D photonic crystal models using finite-difference time-domain (FDTD) method.
Journal ArticleDOI
Optical channel drop filters based on photonic crystal ring resonators
TL;DR: In this paper, a new optical channel drop filters (CDFs) configuration based on photonic crystals ring resonators (PCRRs) is provided, and the transmission characteristics for single-ring and multiple-ring configurations have been investigated by using the 2D finite-difference time-domain (FDTD) technique in triangular lattice photonic crystal (PC) silicon rods.
Journal ArticleDOI
PlaneWave Admittance Method — a novel approach for determining the electromagnetic modes in photonic structures
TL;DR: A novel approach for determining the electromagnetic modes of photonic multilayer structures is presented which combines the plane wave expansion method with the method of lines resulting in a fast and accurate computational technique which is named plane wave admittance method.