Search results for “Wavelength.”

Published Subscription 5 May 2022

Analysis of Braggs Grating for photonics application

By C.S. Mishra, K.P. Swain, Rupali Rupali, T. Dash, Gopinath Palai, S Routray

Abstract: The plane wave expansion approach was used to optimise reflectance in a Braggs grating on a silicon on insulator structure at wavelength 1.55µm. When the results were compared to the experimental results, it was discovered that they agreed better than any other present results. Aside from the inherent benefits of FBGs, such as low cost, low losses, polarisation insensitivity, and full compatibility with fiber-optic systems, they have demonstrated that by …

Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 1, 2022 · pp. 32–35 Read article

Published Subscription 3 Jun 2020

Optical Properties of Barium Borate (BaB2O4)Compound for Current Optoelectronic Applications

By Ibtehag Ali Sanosy, Khalid Mohammed Haroun, Abdalsakhi Suliman Mohammed Hamed, Adam Mohammed Adam Bakheet

Abstract: In this work,Barium borate was prepared by sol-gel synthesisdepending on different molar (0.1, 0.2, 0.3 0.4 and 0.5) molar. Barium borate is an inorganic compound, and it was useda borate of barium with a chemical formula BaB2O4 or Ba(BO2)2 It is available as hydrate or dehydrated form, as white powder or colorless crystals. The optical characteristics of the prepared samples have been investigated by UV/Vis spectrophotometer in the wavelength range …

Published in Journal of Materials & Metallurgical Engineering · Vol. 10, Issue 1, 2020 · pp. 49–58 Read article

Published Subscription 6 Apr 2019

Infrared Spectroscopic Studies on Multiwalled Carbon Nanotubes Reinforced Acrylonitrile Butadiene Styrene Composites

By Krupashankara M. S, R. Shashikala, B. K. Sridhara

Abstract: AbstractFourier Transformed Infrared (FT-IR) Spectroscopic analysis is an effective technique to captures the response of the molecular motions such as stretching, bending and torsional vibrations of materials. In this study, FTIR analysis has been done on two different grades of multiwalled carbon nanotubes (MWCNT) C100 and NC7000. NC7000 grade MWCNT has a higher degree of crystalinity and shows 60% higher absorbance in the wavelength range of 600-3600 cm-1. These two …

Published in Journal of Polymer & Composites · Vol. 2, Issue 3, 2023 · pp. 15–22 Read article

Published Subscription 20 Apr 2020

Optical, Thermal Properties of Cadmium Chloride Reinforced PVA:PVP Blend Films

By R. S. Mahmood, S. A. Salman, N. A. Bakr

Abstract: In this study, pure polymer blend film (PVA:PVP) and salt (CdCl2.H2O) reinforced polymer blend films were prepared at different weight ratios (10, 20, 30) wt% using the casting method. The optical and thermal properties of all polymer blend films were studied.The transmittance and absorbance spectra were recorded within the wavelength range (190-1100) nm. The effect of salt weight ratio on the energy gap of salt (CdCl2.H2O) reinforced polymer blend films …

Published in Journal of Polymer & Composites · Vol. 8, Issue 1, 2020 · pp. 46–52 Read article

Published Subscription 15 Feb 2023

Influence of B2O3 and Li2O on Physical, Thermal and Spectroscopic properties of Bi2O3-B2O3-CdO-Li2O glass system

By R V Neeraja, J. Bhemarajam, Ashok Ande, V. Vamsi Priya, M. Prasad

Abstract: ABSTRACT Bismuth Borate based glasses with compositions BiBCL: 40Bi2O3-(40-X) B2O3-20CdO-XLi2O where x=5,10,15,20,25 mol% were prepared by conventional melt quenching technique. X-ray diffraction (XRD), differential thermal analysis (DTA), UV-VIS absorption spectroscopy, Fourier transform-infrared (FTIR), and Raman spectroscopies were used to analyse the synthesized samples. Through XRD and SEM studies, the synthesized glasses amorphous nature was confirmed. To evaluate the physical and structural characteristics of the glasses, calculations were made for the …

Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 51–62 Read article

Published Subscription 20 Oct 2020

Improved Microstrip Dipole Antenna for Rfid Technology by using Metamaterials

By Nail Alaoui

Abstract: This paper explores an innovative way of designing antennas through metamaterial integration and the miniaturization process. In order to boost frequency usability and reduce the antenna size, we propose a new solution. The interaction between the two divided ring resonators with this resonant component is based on this technique. In this experiment, the parameters considered include the resonant frequency, the lack of response, and the wavelength, the amount of radiation, …

Published in Journal of Power Electronics and Power Systems · Vol. 10, Issue 3, 2020 · pp. 1–6 Read article

Published Subscription 22 Apr 2019

Effect of Thickness in Electroluminescence Spectra on 2-5 Dialoxy-PPV (ROPPV) Films

By Anjali Kanojia

Abstract: The optical properties and electroluminescence (EL) of ROPPV (2-5-dialoxy-PPV) films of various thicknesses have been studied. The thickness of ROPPV layer on glass slide was measured by Fizeau fringes interferometric technique which varied from 200 to 400 nm. The absorption spectra show that the absorption occurred only in ultraviolet region. Thick films show only one peak at 310 nm, whereas by decreasing the thickness, the peaks are obtained at lower …

Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 2, Issue 1, 2015 · pp. 4–9 Read article

Published Subscription 4 Jun 2020

Optical Filters From Silicon Dioxide Doped Dyes

By Yousif Hassan Alsheikh

Abstract: In this work silicon dioxide powder of high purity 99.5% imported from china was used to fabricate optical filters by doping the SiO2 with green and red phenol dyes with different concentrations of 0.25,0.5,0.75 and 1 in terms of mg, four samples of red SiO2 doped phenol filters and four samples of green SiO2 doped phenol filters were produced by pressing the mixture of silicon dioxide powder doped with the …

Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 7, Issue 1, 2020 · pp. 39–48 Read article

Published Subscription 22 May 2023

Study of Adsorption of Nickel on Soil in Rural Area of Hadoti Region: An Ethical Approach to Reduce Soil Pollution

By Deepak Hada, Shweta Saxena

Abstract: Nickel (Ni), one of the toxic heavy metals, is widely distributed in soil and aquatic ecosystems. The chemical nature of the soil has a significant impact on the environment. The adsorption reaction of nickel in alkaline soils is the main topic of this research. The removal of Ni (II) from aqueous solutions uses soil as an adsorbent. Batch adsorption studies were used to study the effects of various factors, including …

Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 10, Issue 1, 2023 · pp. 25–30 Read article

Published Subscription 1 Feb 2020

Atmospheric Windows to Study Remote Sensors

By Bangshidhar Goswami

Abstract: AbstractAtmospheric windows (AW) are spectral margins to accustom sensing signals developed in platted sensors. Decisive wavelengths have mostly thermal infrared considerate as whelm from synergism forms of basis of matter waves or Plank’s theory perfect black body radiation. Varying merge all intervention alongside to contamination forms in clear sky as whelm forms has derivations for only blacks. Moisture column vertical least has season wise calibrating window error merged code privileges. …

Published in Recent Trends in Electronics Communication Systems · Vol. 6, Issue 3, 2019 · pp. 1–6 Read article

Published Subscription 14 Aug 2019

Prediction of Transformer Oil Parameters Using UV/VIS Spectroscopy Graphs

By priti pundir, rahul srivastava, yog raj sood

Abstract: AbstractUltraviolet–visible rays (UV/VIS) spectroscopy is a method based on a spectrum, which forms a graph between radiations absorbed by the material and the wavelength of the radiations. UV/VIS spectroscopy is able to tell the impurities or decay contents present in any sample material. In this paper, we have used data collected from various tests performed on the transformer oil samples and compared these results with the UV/VIS spectroscopy results. This …

Published in Trends in Electrical Engineering · Vol. 5, Issue 2, 2015 · pp. 35–41 Read article

Published Subscription 19 Mar 2018

Design of Ultrafast Optical Full Subtractor Link and Performance Analysis

By Devendra Kr. Tripathi

Abstract: AbstractThis article illustrates proposed optical full subtractor schematic through SOA-MZI, yield borrow and difference outputs concurrently. The objective has been accomplished by exploiting nonlinear attributes with SOA. Numerical simulations have been executed and craving optical subtractor output waveforms have been verified at 100 Gbps data rate. Optimization criterion for the design’s performance measurement is taken as Q-factor and the extinction ratio factor. The subtractor output difference and borrow outcomes with …

Published in Trends in Opto-electro & Optical Communication · Vol. 7, Issue 3, 2017 · pp. 7–20 Read article

Published Subscription 15 Jun 2018

Improved Low Confinement Photonic Crystal Fiber with Ultra Flattened Dispersion

By sandhya sharma, O.S. Lamba

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

Published Subscription 30 Mar 2019

Performance Study in Modified DPSK, MZI Delay Mismatch at 40Gbps Fiber Dispersive Channel

By Devendra Kr. Tripathi

Abstract: AbstractHigher data rate transmission is a desirable feature for the communication system in every era. As they have potentially higher fiber capacity, also have lower cost per bit. This paper presents performance investigation with partial differential phase shift keying and influence of MZI delay mismatch in the high data rate dispersive channels. Ideal fiber braggs grating is considered as fiber dispersive medium with different dispersion. Numerical simulation depicts that in …

Published in Trends in Opto-electro & Optical Communication · Vol. 6, Issue 2, 2016 · pp. 18–23 Read article

Published Subscription 30 Mar 2019

Analysis of Saturation Power based on Device Structural Parameters of a 1550 nm Symmetrical MQW Semiconductor Optical Amplifier

By Nigar Sultana, Rinku Basak

Abstract: AbstractThis paper presents the effect of device structure parameters on the saturation power of a 1550 nm symmetrical Multi Quantum Well (MQW) Semiconductor Optical Amplifier (SOA) for a small signal amplifier gain of 30 dB. Expressions are given to assess this dependency and the results indicate that saturation power decreases with the increase of the number of wells, well thickness and length but increases with the increase of barrier thickness. …

Published in Trends in Opto-electro & Optical Communication · Vol. 5, Issue 1, 2015 · pp. 13–18 Read article