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26 articles for “Photonic crystal structure”
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Realization of Potassium Chloride Sensor Using 2D Photonic Crystal Structure
Abstract: In the present study, the concentration of potassium chloride in their aqueous solution is investigated using optical sensor. Optical sensor is realized by 2D photonic crystal structure (PCS), which is made up of silicon materials (background/substrate) consisting of 8×8 air holes containing aqueous potassium chloride solution. The principle of measurement is based on logarithmic variation of photonic band gap (PBG) with respect to different concentrations of potassium chloride. The PBG …
Published in Recent Trends in Sensor Research & Technology · Vol. 1, Issue 2, 2014 · pp. 1–6 Read article
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Asymmetrical Light Propagation in 2D Photonic Crystal Structure
Abstract: In this work, using Plane Wave Expansion (PWE) and two-dimensional Finite Difference Time Domain (2D-FDTD) methods, we design a structure that shows the high asymmetry in propagation of light. Structure is based on two-dimensional Photonic Crystal (2D-PC) consisting of square lattice (39 X 39) of infinitely long circular rods of refractive index 2.9 in the background of refractive index 1. Radius of rods is 0.15a, where a is the lattice …
Published in Journal of Polymer & Composites · Vol. 11, Issue 7, 2023 · pp. 69–74 Read article
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Fluorescence Emission Enhancement in Crystalline Photonic Structures
Abstract: One of the two ways that a material that has absorbed light or other electromagnetic radiation can emit light is through fluorescence. Fluorspar is a substance that can be added to welding compounds to facilitate easier flow; the word fluorescent is derived from the Latin fluere, which means "to flow." LED lights, clothing that glows in "black light," or light sources that contain UV or blue light, and butterflies like …
Published in International Journal of Crystalline Materials · Vol. 1, Issue 2, 2024 · pp. 35–48 Read article
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Analysis of Water Content in Fire Resistant Hydraulic Fluids used in Coke Furnace Door Opening through Optical Waveguide
Abstract: AbstractThis paper attempts to measure the concentration of water in fire resistant hydraulic fluids used for opening of door in coke furnace through optical waveguide. The proposed model is a two dimensional photonic crystal structure with glass substrate consisting of air holes. Measurement principle is concentrated on linear variation of photonic band gap (PBG) along with concentration of fire resistant fluids infiltrated in air holes of photonic crystal structure. The …
Published in Recent Trends in Sensor Research & Technology · Vol. 5, Issue 1, 2018 · pp. 14–18 Read article
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Non-linear Photonic Crystals and their Applications: A Review
Abstract: The nonlinear photonic crystals (NLPCs) are periodic material structures in which nonlinear materials are used for photonic structure formation. In nonlinear photonic crystals, the optical response mainly depends on the intensity of the light beam that propagates through the photonic crystal. These structures show new optical properties with improved or enhanced or new functionalities that cannot be observed in linear photonic crystals. In addition to this, using nonlinear materials in …
Published in Trends in Opto-electro & Optical Communication · Vol. 12, Issue 2, 2022 · pp. 36–39 Read article
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Growth, Structural and Optical characteristics of Citric Acid Doped Copper Sulphate Single Crystals Polymer Composites Photonic Applications
Abstract: The organic material Citric Acid doped Copper Sulphate single crystals (CACS) was synthesized and single crystal was grown by slow evaporation method. The incorporation of citric acid, an organic compound, introduces polymer-like functional behavior into the crystal matrix, forming an organic-inorganic hybrid composite with enhanced optical and structural characteristics. Single crystal XRD confirmed the triclinic system with unit cell parameters: a = 5.96 Å, b = 6.11 Å, c = …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 482–488 Read article
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Optimization of a Hybrid Core Photonic Crystal Fiber for THz Applications
Abstract: Despite several real-life applications, the development of low-loss terahertz waveguide is still a challenge for long-distance applications due to its low confinement and high propagation loss. In this paper, an octagonal waveguide structure has been optimized for minimum propagation loss in the THz frequency band. The optimized structure has a core diameter of 300 um with an operating frequency of 1.1 THz. From the optimized structure, we found optimized power …
Published in Trends in Opto-electro & Optical Communication · Vol. 9, Issue 2, 2019 · pp. 18–24 Read article
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Light straightening, super-collimation, strong beaming, extraordinary refraction and splitting in Photonic Crystals
Abstract: This paper reviews light straightening, super-collimation, strong beaming, extraordinary refraction and splitting in photonic crystals and stratified structures. The light straightening finds potential applications in design of optical devices. The super collimation and strong beaming can be utilized in optical integrated circuits. The extra-ordinary refraction can be utilized in sub wavelength imaging and information propagation. The splitting can be used in optical instrumentation and optical tuning. All these phenomena are …
Published in Trends in Opto-electro & Optical Communication · Vol. 12, Issue 1, 2022 · pp. 1–4 Read article
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An Optimized Configuration of Photonic Crystal Fiber (PCF) for High Birefrigent and Low Loss Application using FDTD Method
Abstract: AbstractTwo simplified structures are theoretically designed for high birefringence and low loss guiding photonic crystal fiber at operating wavelength 1.55 µm. The effective index, birefringence and confinement loss are obtained using finite difference time domain method. Simulation result shows that the maximum modal birefringence is equal to 86.33x10-5 for one configuration and lowest confinement loss in another configuration is nearly equal to 0.70x10-2 dB/Km at same operating wavelength.Keyword: birefringence, FDTD …
Published in Trends in Opto-electro & Optical Communication · Vol. 3, Issue 3, 2013 · pp. 1–8 Read article
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Dispersion Analysis of TE Modes in 1D Magnetized Ferrite Photonic Crystals for Tunable and Switchable Band Gap Filtering Device Applications under Transverse Magnetization Configuration
Abstract: The article comprehensively explores the dispersion characteristics exhibited by TE modes within one-dimensional magnetized ferrite photonic crystals, particularly under the influence of transverse magnetization. We employed the rigorous transfer matrix method, a powerful tool for theoretical investigation, calculation, and behavior analysis of such intricate systems. Our research delves into the structural parameters that govern the behavior of these ferrite photonic crystals, explicitly focusing on the incident parallel wave vector (β) …
Published in Journal of Polymer & Composites · Vol. 11, Issue 7, 2023 · pp. 60–68 Read article
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Structure and Crystal Growth of Urea Doped P- Block Element
Abstract: Nonlinear optical (NLO) materials exhibiting second harmonic generation have attracted considerable attention over the past few decades because of their technological significance in areas such as optical communication, signal processing, and instrumentation. Urea, being an important NLO material, presents challenges in crystal growth and handling due to its highly hygroscopic nature. Various derivatives of urea have been investigated for NLO applications, and some have shown promising potential in this field. …
Published in International Journal of Crystalline Materials · Vol. 3, Issue 2, 2026 · pp. 08–13 Read article
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Improved Low Confinement Photonic Crystal Fiber with Ultra Flattened Dispersion
Abstract: AbstractIn this study, to obtain lower value of dispersion with flatness for wideband, more complicated design will be proposed with multiple-hole diameter and shapes. Confinement loss is also reduced by increasing the number of rings. We optimized cladding region in which there are holes of different diameter and shapes. Numerical investigation shows that value of confinement loss is very low -0.00116 dB/Km and ultra-flat dispersion over wideband at operating frequency …
Published in Trends in Opto-electro & Optical Communication · Vol. 8, Issue 2, 2018 · pp. 1–5 Read article
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Crystalline Materials: From Crystal Growth and Defect Engineering to Advanced Functional Applications
Abstract: Crystalline materials form the foundation of numerous modern technologies owing to their highly ordered atomic structures and exceptional physical, chemical, electrical, optical, and mechanical properties. Their periodic crystal lattices provide superior structural stability and enable precise control of electronic, thermal, and optical behavior, making them indispensable in microelectronics, photonics, energy storage, catalysis, aerospace, environmental remediation, and biomedical engineering. Rapid advances in crystal growth techniques, nanotechnology, and computational materials science have …
Published in International Journal of Crystalline Materials · Vol. 3, Issue 2, 2026 · pp. 23–31 Read article
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Quasicrystal to Pervade Electronic Subsidies
Abstract: Epitaxial growth of quasicrystals on crystals has shown differential behavior as per associated tile on the uniform crystal. A quasicrystal is an ordered arrangement of atoms with no vacancy while no order in symmetry arranges. Henceforth, both short and long-range have subjected differential performance to changes in properties like electronic abilities in consequence of tiles subjected. Simple assess of quasicrystal studied as the possibility of basic triangle allocation in hexagon, …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 12, Issue 2, 2021 · pp. 15–24 Read article
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Manganese Mercury Thiocyanate Doped Zirconium Silicate Crystal Structure for Photo-Electronic, Electro-Optic and Sensor Applications
Abstract: Manganese mercury thiocyanate is a well-known organometallic crystal prized for its nonlinear optical properties. The high second harmonic efficiency of nearly 18 times that of urea and the wide optical transmittance window (373–2250 nm) of MMTC indicate that this material is an excellent candidate for photonics device fabrication. The metal thiocyanates and their Lewis-base adducts are one of the interesting themes of structural chemistry. For MMTC is a very flexible …
Published in Journal of Materials & Metallurgical Engineering · Vol. 16, Issue 2, 2026 Read article
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Design and Analysis of Dispersion Flattened Low Loss Photonic Crystal Fiber
Abstract: AbstractThis paper demonstrates the study of triangular lattice hexagonal photonic crystal fiber with GeO2 doped core. The photonic crystal fiber (PCF) studied in this research work has a core doped with 97% molar concentrated GeO2 with seven layers of air-capillaries around the core. The design and analysis of optical characteristics, i.e., dispersion, confinement loss, and effective area have been studied extensively for optimizing the structure for a certain range of …
Published in Trends in Opto-electro & Optical Communication · Vol. 7, Issue 2, 2017 · pp. 41–50 Read article
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Comprehensive Review of the Fundamental and Functional Properties of Crystalline Materials
Abstract: Crystalline materials, characterized by their highly ordered atomic arrangements, serve as the backbone of modern engineering and technology. This review provides a detailed examination of their diverse properties, categorized into mechanical, thermal, electrical, and optical domains. We analyze fundamental mechanical parameters such as the elastic modulus, yield strength, and fracture toughness, alongside functional behaviors like fatigue and creep. The discussion extends to thermal transport and expansion, electrical conductivity and resistivity, …
Published in International Journal of Crystalline Materials · Vol. 3, Issue 1, 2026 · pp. 20–24 Read article
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Structural, Electronic and Optical Properties of ZnO Material Using First Principle Calculation
Abstract: Structural, electronic and optical properties have been determined by using first principle calculation for ZnO material. In present study, full potential linearized augmented plane wave method has been selected with generalised gradient approximation executed in WIEN2k. Structure of ZnO material stabilises in the Wurtzite form of hexagonal closed packed crystal with lattice constant a=3.289Å, c= 5.307Å. Density of states and band structure diagram of ZnO material shows semiconductor nature with …
Published in Journal of Polymer & Composites · Vol. 11, Issue 5, 2023 · pp. 27–34 Read article
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Design and Analysis of a Low Loss Polarization Maintaining Waveguide for Transmission of THz Waves
Abstract: AbstractThis paper presents the design of a novel porous core kagome lattice photonic crystal fiber (PCF) which acts as a low loss and polarization maintaining teraheartz (THz) waveguide. Using finite element method (FEM), properties of the proposed PCF are simulated in details including the effective material loss (EML), confinement loss, single mode propagation. Cyclic olefin copolymer, also known as TOPAS material have been chosen for the air micro structured inhibited …
Published in Trends in Opto-electro & Optical Communication · Vol. 6, Issue 3, 2016 · pp. 13–22 Read article
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Recent Progress in the Development of High- Efficiency Perovskite Solar Cell Using Copper Iodide (CuI) as Hole Transport Layer
Abstract: Solar cells are a practical option that could potentially require additional energy sources for developing new clean energy. A renewable source of electricity is characterized by its affordability, accessibility, and zero emissions from greenhouse gases. By converting sunlight photons into electrical power, photovoltaic cells are a viable option. The last two decades have witnessed numerous material opportunities for scientific advancements in photovoltaic technology, which have resulted in reduced costs and …
Published in Journal of Semiconductor Devices and Circuits · Vol. 11, Issue 1, 2024 Read article