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552 articles for “Optics”
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SYNTHESIS AND CHARACTERIZATION OF Mn2+ DOPED LiPbX3(X = Cl, Br, I)
Abstract: In this paper the structural, electronic and optical properties of Mn doped Pb based cubic perovskites LiPbX3(X= Cl, Br and I) were studied by wet chemical method (sol gel method). For Mn doped LiPbX3(X= Cl, Br and I) NCs, MnCl2 and PbBr2 were added in molar feed ratio 1.35 mole% and nan crystal were examine with the help of TEM and their structure were confirmed by X-ray diffraction (XRD). Additionally, …
Published in Journal of Polymer & Composites · Vol. 12, Issue 6, 2024 · pp. 48–54 Read article
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Effect of Bismuth doping on Thiourea crystals : A NLO Material
Abstract: Single crystals of pure and thiourea-substituted bismuth were successfully grown using the slow evaporation solution growth technique at ambient temperature. The impact of thiourea doping on the crystal properties was thoroughly investigated. Solubility tests for the grown samples were conducted at various temperatures, providing crucial data on the dissolution characteristics. Structural characterization of these crystals was performed using single crystal X-ray diffraction (XRD), confirming their crystalline nature. Energy-dispersive X-ray spectroscopy …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 15, Issue 2, 2024 · pp. 10–16 Read article
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Synthesis of Thermal Resistant and Transparent Al2O3 Reinforced Epoxy-Based Composite Coatings
Abstract: This study explores the influence of thermal treatment on the structural, optical, and surface wettability characteristics of epoxy-based composite coatings reinforced with 3 wt.% aluminum oxide (Al₂O₃) nanoparticles. The coatings were synthesized via a dip-coating method on carbon fiber substrates and subjected to controlled thermal treatments at 300 °C, 400 °C, and 500 °C to assess their thermal resilience. X-ray diffraction (XRD) analysis confirmed the structural integrity of the composite …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 178–183 Read article
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Facile Synthesis and Characterization of Cd²⁺ Doped NiAl₂O₄ Nanoparticles for Advanced Polymer Composite Integration
Abstract: Ni1-xCdxAl2O4, where 0 ≤ x ≤ 0.5, was successfully synthesized using the chemical co-precipitation technique, a scalable and cost-effective route suitable for composite material applications. X-ray diffraction (XRD) analysis revealed a crystalline cubic spinel structure for the resulting nanoparticles, with determined crystallite sizes ranging from 36 to 12 nm for NiAl2O4 and Cd-doped NiAl2O4. The respective band gaps for the materials were found to be 3.51 and 4.18 eV. Infrared …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 59–72 Read article
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Designing Aspects and Recent Advances in Digital Holographic Microscopy
Abstract: Recent advances in Digital Holographic Microscopy have been discussed in this paper, besides throwing some light on the designing aspects of optical components like beam splitter and neutral density filter for the optimization of system performance. Some important related subtopics like spectral resolution of digital holograms, and Fourier-synthesis holography have been technically discussed. The optimization of acoustical holographic components for use in renewable energy production is presented in this study. …
Published in Research & Reviews : Journal of Physics · Vol. 14, Issue 2, 2025 · pp. 06–18 Read article
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Structure–Optical Property Correlation of Co-Doped TiO₂ and ZnO Nanofillers for Advanced Functional Composite Applications
Abstract: This study investigates the enhancement of the structural and optical properties of titanium dioxide (TiO₂) and zinc oxide (ZnO) nanoparticles through cobalt (Co) doping. Pristine TiO₂ and ZnO are widely studied metal oxides; however, their large band gaps and limited visible-light absorption restrict their performance in optoelectronic, photocatalytic, and environmental applications. Co doping is employed as an effective strategy to overcome these limitations by inducing band-gap narrowing, creating defect-related electronic …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1374–1394 Read article
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Multi-Sensor System for Underwater Pothole Detection to Enhance Road Safety During Monsoon Seasons
Abstract: Monsoon seasons across India and similar tropical regions severely compromise road safety by causing water accumulation that conceals dangerous potholes beneath stagnant pools, leading to frequent vehicle damage, tire punctures, and fatal accidents. Traditional detection methods relying on smartphone accelerometers, ultrasonic sensors, or machine vision fail under flooded conditions due to acoustic signal reflection at water surfaces and optical distortions from glare and turbidity. This research proposes an innovative multi-sensor …
Published in International Journal of Mechanical Dynamics and Systems Analysis · Vol. 4, Issue 1, 2026 · pp. 25–32 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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IoT-Connected Transparent Conductive Polymer–Silver Nano-Wire Electrodes for Real-Time Performance Monitoring of Flexible Solar Panels
Abstract: Flexible photovoltaic technologies have emerged as promising energy harvesting solutions for wearable electronics, portable power systems, and Internet of Things (IoT)-enabled smart devices. However, the limited mechanical durability of conventional transparent conductive electrodes and the lack of integrated real-time monitoring restrict their long-term reliability. This study presents an IoT-connected transparent conductive polymer–silver nanowire (PEDOT:PSS–AgNW) hybrid electrode for flexible solar panels, combining high optoelectronic performance with continuous wireless performance monitoring. The …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 · pp. 1–18 Read article
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A Review on Chiral Metamaterials and its Applications in Antennas
Abstract: AbstractThis paper presents a review of the chiral metamaterials (CMM) and their different specific properties like circular dichroism, negative refractive index, and giant optical activity. The physical properties of metàmaterials circular dichroism and the method of retrieval of effective parameters of the CMM are discussed in detail. The various classes of the chiral metamaterial and their results of the simulation are presented. The study shows that the chiral metamaterials have …
Published in Journal of Microwave Engineering and Technologies · Vol. 5, Issue 2, 2018 · pp. 5–16 Read article
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Effect of Zr, Fe Mono, Bimetallic Nanoparticles on the Electronic Properties of PVA/PVP Polymer blend
Abstract: AbstractThis paper describes the environmentally friendly production of polymer blend nanocomposites (PBNCs) made of polyvinyl alcohol (PVA) and polyvinylpyrrolidone (PVP) and embedded with Zirconium(ZrO2), Iron (Fe2O3), and Zirconium-Iron (Zr-Fe), mono and bimetallic nanoparticles (NPs). FTIR spectroscopy was used to investigate the blend's development, interaction between polymers and nanoparticles, interactions between polymers and one another, and the impact of nanoparticles on interactions within PVA/PVP blend nanocomposites. With the addition of nanoparticles …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 72–80 Read article
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Development of chemical photo-electronics
Abstract: This article has described to access changed perform of zinc sulphide (ZnS) after doping manganese. ZnS has been typified II-VI compound devised for optoelectronic semiconductor material. Mn-doped ZnS semiconductor nanocrystal has been explored in 1994. Scope has been synergistic to usual doped semiconductor nanoparticle, given by, CdS: Mn; CdS: Eu; ZnO: Co, Ni; ZnSe: Mn; ZnS: Cu; ZnS: Pb, Cu; henceforth, scope adjunct has been in lane pursue of ZnS: …
Published in Journal of Semiconductor Devices and Circuits · Vol. 8, Issue 3, 2021 · pp. 16–22 Read article
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Investigations on the impact of modulation formats and weather conditions in FSO link employing polarization division multiplexing and coherent detection-orthogonal frequency division multiplexing
Abstract: Free space optics (FSO) is a communication system where free space acts as medium between transceivers and they should be in line-of-sight for successful transmission of optical signal. Medium can be air, outer space, or vacuum. This system can be used for communication purpose in hours and in lesser economy. There are many advantages of FSO like high bandwidth and no spectrum license. The transmission in FSO is dependent on …
Published in Journal of VLSI Design Tools and Technology · Vol. 10, Issue 2, 2020 · pp. 17–25 Read article
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DNA Hybridization Biosensor using Silicon Nanowire PIC Waveguide
Abstract: Abstract: In this paper, silicon nanowire based optical waveguide is investigated to discover its application as a bio-detecting reason. In silicon nanowire based optical waveguide, silicon bars are vertically adjusted in 2-dimensional exhibit design over SiO2 substrate. These silicon bars are of couple of nanometer sizes and called as nanowire. Low Refractive Index (RI) gapping in these silicon wires holds the optical power. Quasi-TE mode is supported by these vertical …
Published in Recent Trends in Sensor Research & Technology · Vol. 6, Issue 1, 2019 · pp. 7–12 Read article
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Image Preprocessing And Analysis On Eye Fundus Images Segmentation By Using Density Clustering Methods
Abstract: Abstract: In order to do an automated evaluation of various retinal illnesses such as Diabetic retinopathy, Glaucoma, and Macular Edema, fundus images must be pre-processed first. For many reasons, it's difficult to accurately detect the optic disc. Many blood vessels cross the optic disc, making it difficult to discern the disc's boundaries in fundus images. Lesion regions in diabetic retinopathy look very much like an optic disc's colour and texture, …
Published in Recent Trends in Sensor Research & Technology · Vol. 8, Issue 3, 2021 · pp. 11–18 Read article
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Growth, XRD, FTIR and Second Order NLO studies of Undoped and Zinc Sulphate doped L-Histidine Single Crystals
Abstract: AbstractSingle crystals of pure (undoped) L-histidine and Zinc sulphate doped L-histidine have been synthesized and grown by slow evaporation method using water as the solvent. These grown crystals are characterized by FTIR, XRD and SHG. From Fourier transform infrared (FTIR) spectral analysis, the various functional groups present in the sample have been confirmed. The X-ray diffraction (XRD) study ensures that the grown crystal crystallizes in the orthorhombic system and the …
Published in Trends in Opto-electro & Optical Communication · Vol. 8, Issue 3, 2018 · pp. 31–36 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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Cost Efficient Low Convergence ONU Placement Algorithm for Deployment of Fiber-Wireless (FiWi) Access Networks
Abstract: AbstractFiber-Wireless (FiWi) access networks provide an impressive platform for the emerging future applications by integrating the merits of optical networks and wireless networks. It offers reliability, robustness, long distance communication, high bandwidth of optical network and mobility, flexibility at a lower cost of wireless network. One of the major issues of FiWi network is its installation cost, which depends on the number of ONUs present in the network. In order …
Published in Trends in Opto-electro & Optical Communication · Vol. 6, Issue 1, 2016 · pp. 25–41 Read article
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Effects of Variation of Injection Current on Characteristics of a 1550 nm Semiconductor Laser
Abstract: AbstractThis work represents the prototype of both the analytical and the simulation based study on high speed communication system particularly high speed data transmission through optical fiber using 1550 nm InGaAsP/InP laser. In recent years, Vertical Cavity Surface Emitting Lasers (VCSELs) are prerequisites for future ultrahigh data-rate systems. This paper represents an overview on high speed performance of the 1550 nm VCSEL. Using MATLAB simulation tool the characteristics of the …
Published in Trends in Opto-electro & Optical Communication · Vol. 3, Issue 2, 2013 · pp. 1–6 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