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Advancements in Synthesis Strategies and Optoelectronic Applications of Bio-Based Photosensitive Polyimides Int. J. Opt. (IF 1.7) Pub Date : 2024-3-1 Guangning Yu, Qiwen Ma, Hai-Yang Chang, Rongrong Zheng, Cheng Wang, Li-Ying Guo
With the rapid development of information, energy, and materials industries in China, the demand for high-performance polymers is gradually increasing. Photosensitive polyimide (PSPI) has emerged as an ideal choice for high-performance optoelectronic materials due to its outstanding thermal stability, mechanical strength, and low dielectric constant. In particular, bio-based photosensitive polyimide
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Temperature-Dependent Electromagnetic Surface Wave Supported by Graphene-Loaded Indium Antimonide Planar Structure Int. J. Opt. (IF 1.7) Pub Date : 2024-1-5 M. Z. Yaqoob, Ahtisham Ali, Majeed A. S. Alkanhal, A. Ghaffar, Y. Khan, M. Umair
In this study, the propagation characteristics of EM surface waves supported by the graphene-coated indium antimonide (InSb) planar waveguide have been investigated theoretically and numerically. The modeling of graphene has been performed by use of Kubo formalism whereas the relative permittivity of indium antimonide has been calculated using Drude’s model. The results for transverse electric (TE)
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The Propagation Properties of a Lorentz–Gauss Vortex Beam in a Gradient-Index Medium Int. J. Opt. (IF 1.7) Pub Date : 2023-12-28 Mohammed S. Qusailah, Abdu A. Alkelly, Wafa’a A. Al-Bahry
Based on the Huygens–Fresnel integral and ABCD matrix, the propagation equation for the Lorentz–Gauss vortex beam (LGVB) in a gradient-index medium (GRIN) is rederived. The evolution of the intensity and phase distributions of an LGVB through a GRIN medium are numerically calculated as a function of the gradient-index parameter with changes in the incident beam parameters. The results showed that the
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Effect of the Dispersion Orders on the Widths of the Coexistence Domain and Combs Spectra of Bright and Dark Solitons in Microresonators Int. J. Opt. (IF 1.7) Pub Date : 2023-12-8 Willy André Kangmafo Miendjim, Caouis Kammegne, Thomas Tamo Tatietse, Jimmi Hervé Talla Mbé
Using the Lugiato–Lefever model, we base on the hysteresis approach to analyze the coexistence domain of bright and dark solitons in the zero, normal, and anomalous dispersion regimes. Our results also highlight that the fourth-order dispersion term affects the width of the frequency combs of both dark and bright solitons. It also allows the appearance of dispersive waves on the soliton spectra that
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Design of Ultrasmall Plasmonic Logic Gates Based on Single Nanoring Dielectric-Metal-Dielectric Waveguide Int. J. Opt. (IF 1.7) Pub Date : 2023-11-21 Salma Ali Sadeq, Mohsen Hayati, Saba Khosravi
This paper proposes a new configuration of dielectric-metal-dielectric (DMD) waveguides to design optical logic gates. Seven plasmonic logic gates, including NOT, OR, AND, NAND, NOR, XOR, and XNOR, are realized by one nanoring and four DMD plasmonic waveguides. To realize the logic gates, an ultrasmall size of 300 nm × 300 nm device is designed. The performance of the plasmonic logic gates is based
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Effect of Co-Doping on the Photoelectric Properties of the Novel Two-Dimensional Material Borophene Int. J. Opt. (IF 1.7) Pub Date : 2023-11-6 Chunhong Zhang, Zhongzheng Zhang
Borophene is a novel two-dimensional material with abundant crystal structure and photoelectric properties. We focus on the effect of co-doping on the electronic structure and optical properties of borophene using the first-principles method. The results show that the structure of Al and Ga co-doped borophene is obviously distorted because Al and Ga atoms have formed bonds with a bond length of 2.378 Å
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Refractometric Sensing of Protein in Urine by the Photonic Crystal Fiber Biosensor in THz Regime Int. J. Opt. (IF 1.7) Pub Date : 2023-10-26 Md. Moshiur Rahman, Farhana Akter Mou, Mohammed Imamul Hassan Bhuiyan, Mohammad Rakibul Islam
The presence of albumin in human urine is one of the confirmed early symptoms of kidney dysfunction. A precise urine protein identification process is very important to monitor the kidney’s proper functioning. To identify the presence of albumin in urine, a refractometric protein sensing approach in the photonic crystal fiber (PCF) environment has been introduced here. A PCF geometry with suspended
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Fast Backprojection Filtration Algorithm in Circular Cone-Beam Computed Tomography Int. J. Opt. (IF 1.7) Pub Date : 2023-10-23 Xianchao Wang, Yong Zhang, Xingyong Hong, Honghai Wang
In order to meet the heavy backprojection calculation of the backprojection filtration (BPF) algorithm in circular cone-beam computed tomography (CT), a fast backprojection method is developed, which uses the integral operator of the fixed scanning angle integral interval. The proposed method combines with Hilbert filtration and the filter of the Blackman window, and then, the fast BPF (F-BPF) algorithm
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Classical and Quantum Surface Plasmon Resonance Biosensing Int. J. Opt. (IF 1.7) Pub Date : 2023-10-18 K. T. Mpofu, S. Ombinda-Lemboumba, P. Mthunzi-Kufa
Surface plasmon resonance is an optical phenomenon first discovered in 1902. The phenomenon has since had many applications, particularly in biosensing. In this paper, we review surface plasmon resonance-based biosensing, look at recent progress made in integrating quantum resources to develop surface plasmon resonance-based biosensors into a class of surface plasmon resonance biosensors commonly referred
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3D Reconstruction and Measurement Analysis of a Dense Point Cloud Fused with a Depth Image Int. J. Opt. (IF 1.7) Pub Date : 2023-9-8 Yujing Qiao, Ning Lv, Siyuan Zhang
To solve the problems of holes, noise, and texture information missing in the traditional incremental reconstruction of complex surface objects, a 3D reconstruction method of depth image fusion surface dense point clouds is proposed, and texture feature creation is combined to obtain a 3D reconstruction model that takes into account the main body and details of the reconstructed object. First, the
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Design and Analysis of Target Simulator Using All Spherical System with High Matching Rate Int. J. Opt. (IF 1.7) Pub Date : 2023-9-8 Shijie Li, Xiaojing Zhang, Kai Zhao, Zihuai Li, Xiong Li, Lumin Zhao, Jin Zhang, Changlong Cai
To achieve low wavefront error and high throughput with vignetting-free target simulators, a concave-convex-concaveoff-axis spherical system is designed in this paper, which effectively eliminates astigmatism and coma of the system by fields of view (FOVs) and aperture offset and provides theoretical basis for the realization of 100% matching between the exit pupil of the field lens and entrance pupil
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One-Point and Multiline Calibration Fiber-Optic Laser-Ablation Spark-Induced Breakdown Spectroscopy for Quantitative Analysis of Elements in Aluminum Alloys Int. J. Opt. (IF 1.7) Pub Date : 2023-7-17 Yipeng Liao, Xiaoyong He, Xi Wu
Rapid and accurate analysis of element concentrations in aluminum alloys is crucial due to their widespread use in modern industry. This paper proposes a one-point and multiline calibration fiber-optic laser-ablation spark-induced breakdown spectroscopy (OP-MLC FO-LA-SIBS) for the quantitative analysis of elements in aluminum alloys. The experimental system utilizes a compact fiber laser as the laser-ablation
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Solar Light Radiometry Calibration Unit for a ScanPol Polarimeter of the Aerosol-UA Space Mission Int. J. Opt. (IF 1.7) Pub Date : 2023-7-10 Ivan Syniavskyi, Yevgen Oberemok, Vassyl Danylevsky, Yuriy Ivanov, Roman Osypenko, Mikhail Sosonkin, Gennadi Milinevsky
The Aerosol-UA space mission will study aerosol microphysical characteristics in the Earth’s atmosphere based on the multispectral scanning polarimeter (ScanPol) and imaging polarimeter (MSIP). Both polarimeters must be precisely calibrated on the ground and in orbit to provide correct measurements. This paper considers the results of developing an experimental device for the radiometric calibration
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A Feasibility Study on Monitoring Shelf Life of Bottled Natural Fruit Juice Using Laser-Induced Autofluorescence Int. J. Opt. (IF 1.7) Pub Date : 2023-4-29 Peter Osei-Wusu Adueming, Jerry Opoku-Ansah, Andrew Atiogbe Huzortey, Charles Lloyd Yeboah Amuah, Kwasi Nyandey, Moses Jojo Eghan, Benjamin Anderson, Samuel Sonko Sackey
Shelf life of bottled natural fruit juice (BNFJ) provides relevant information on quality and authenticity for consumer protection. However, existing techniques for monitoring the shelf life of BNFJ are destructive and time-consuming. We report on using laser-induced autofluorescence (LIAF) spectroscopic technique in combination with multivariate analysis for shelf life monitoring of BNFJ. The LIAF
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Design and Theoretical Analysis of Highly Negative Dispersion-Compensating Photonic Crystal Fibers with Multiple Zero-Dispersion Wavelengths Int. J. Opt. (IF 1.7) Pub Date : 2023-3-22 John Napari N-yorbe, Emmanuel Kofi Akowuah, Iddrisu Danlard, Alexander Kwasi Amoah
This paper presents a highly negative dispersion-compensating photonic crystal fiber (DC-PCF) with multiple zero dispersion wavelengths (ZDWs) within the telecommunication bands. The multiple ZDWs of the PCF may lead to high spectral densities than those of other PCFs with few ZDWs. The full-vectorial finite element method with a perfectly matched layer (PML) is used to investigate the optical properties
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Research on the Seed Respiration CO2 Detection System Based on TDLAS Technology Int. J. Opt. (IF 1.7) Pub Date : 2023-3-22 Lu Gao, Ying Zang, Guangwu Zhao, Hengnian Qi, Qizhe Tang, Qingshan Liu, Liangquan Jia
The traditional detection method of CO2 concentration in seed respiration has defects such as low detection accuracy, low detection efficiency, and inability to monitor in real time. In order to solve these problems, we report a seed respiration CO2 detection system based on wavelength modulation spectroscopy (WMS) techniques in tunable diode laser absorption spectroscopy (TDLAS). This system uses
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Frequency Scanning Multibeamforming Method Based on CFBG Photonic Microwave Oscillation Int. J. Opt. (IF 1.7) Pub Date : 2023-3-21 Ning Mu, Hongxia Guo, Wanrong Gao
In this paper, a two-loop photoelectric oscillator based on chirped fiber Bragg grating (CFBG) is used to construct a swept source, which acts on the frequency scanning array antenna to realise multibeamforming. The simulation results of the designed beamforming system have shown that it can realise wide-range beam scanning and has ultralow phase noise.
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The Optimization of Multimode Fiber Speckle Sensor for Microvibration Int. J. Opt. (IF 1.7) Pub Date : 2023-2-17 Haoyang Song, Feiyu Sun, Yunxu Sun, Wei Liu
A vibration sensing system with optical fiber speckles is demonstrated and optimized with different optical fiber diameters and speckle statistical algorithms. The types of fiber diameter and material lead to a different performance of fiber specklegram sensor (FSS), which has been experimentally explored. The signal intensity, demodulated from the speckles, is different when using multimode fibers
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Factors Affecting Terahertz Emission from InGaN Quantum Wells under Ultrafast Excitation Int. J. Opt. (IF 1.7) Pub Date : 2023-2-6 Muhammad Farooq Saleem, Ghulam Abbas Ashraf, Muhamad Faisal Iqbal, Rashid Khan, Muhammad Javid, Tianwu Wang
InGaN quantum wells (QWs) grown on c-plane sapphire substrate experience strain due to the lattice mismatch. The strain generates a strong piezoelectric field in QWs that contributes to THz emission under ultrafast excitation. Physical parameters such as QW width, period number, and Indium concentration can affect the strength of the piezoelectric field and result in THz emission. Experimental parameters
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AI-Assisted Failure Location Platform for Optical Network Int. J. Opt. (IF 1.7) Pub Date : 2023-2-1 Pengcheng Liu, Wei Ji, Qiang Liu, Xuwei Xue
In the paper, we applied the customized AI module to the OTDR device and, combined with the optical power monitoring module, realized the AI-assisted optical network fault location mechanism for the high-density interconnection scenario of data centers. The mechanism can make full use of the data from optical links. Based on the link data, the AI module can predict the links that may fail, and then
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Integrated Free-Space Optics and Fiber Optic Network Performance Enhancement for Sustaining 5G High Capacity Communications Int. J. Opt. (IF 1.7) Pub Date : 2023-1-13 Meshari Alsharari, Khaled Aliqab, Farman Ali, Ammar Armghan
In this paper, the integrated free-space optics (FSO) and fiber optic model is evaluated using new radio (NR) sub-THz link to sustain next generation 5G capacity. The proposed integrated model effectively applies over 25 km single mode fiber, 0.5 m RF wireless, and 500 m optical wireless. In addition, four different sub-THz frequencies (125, 150, 175, and 200 GHz) are estimated on NR-based 5G FSO network
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Optimization and Numerical Modeling of TCO/SnO2/CdS/CdTe Solar Cells Int. J. Opt. (IF 1.7) Pub Date : 2023-1-12 Parinaz Khaledi, Mahdi Behboudnia, Mohammad Karimi
Due to the excellent performance of the CdTe solar cells, research is ongoing to increase the efficiency of these cells. The first purpose of this study is to increase the accuracy of the physical parameters of a solar cell in the electron ̶hole production rate equation. In previous studies, this section was neglected because of using only ready-made software. Simulations were performed using a one-dimensional
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The Multiple Scattering of Laser Beam Propagation in Advection Fog and Radiation Fog Int. J. Opt. (IF 1.7) Pub Date : 2023-1-10 Qiang Xu, Yunhua Cao, Yuanyuan Zhang, Shaohui Yan, Yiping Han, Zhensen Wu
The laser beams were scattered and attenuated when they propagate in fogs for laser communication, laser remote sensing detection. For different density and droplets distribution of fogs, the laser scatter and attenuation are different, the correspond mechanism need thorough investigation. The characteristics of laser beam scattering in different types of fogs are studied based on the droplet size
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Parameter Study and Economic Efficiency Optimization for Laser Cladding with Wide-Band Fiber Laser Int. J. Opt. (IF 1.7) Pub Date : 2022-12-14 Bin Hu, Jianhai Han, Junhua Wang
With the aim of investigating the cladding geometry characteristics by a wide-band fiber laser with coaxial rectangular nozzle, and optimizing the powder efficiency and deposition speed for economy efficiency, Fe-based alloy powder was deposited on AISI 1045 substrate by a 3000 W fiber laser in this study. Laser power (P), scan speed (V), and powder feed rate (F) were selected for a factorial design
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Design and Analysis of Ultralow Voltage Graphene on the Silicon Rich Nitride Tunable Ring Resonator-Based Add-Drop Filter for DWDM Systems Int. J. Opt. (IF 1.7) Pub Date : 2022-12-9 Filston Rukerandanga, Stephen Musyoki, Edwin O. Ataro
We propose and simulate a third-order 3D electro-optically highly tunable compact add-drop filter based on nonlinear microring resonators. The used tuning mechanism relies on enhanced Kerr nonlinearity in a graphene layer integrated on top of a two-photonabsorption-free and low loss silicon-rich nitride core material at telecommunication wavelengths. An ultrahigh tuning efficiency (150 pm/V) over a
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In-Line and Off-Axis Hybrid Digital Holographic Imaging Method Based on Off-Axis Hologram Constraints Int. J. Opt. (IF 1.7) Pub Date : 2022-11-25 Fengpeng Wang, Feifan Fan, Deren Yuan, Xinghua Wang
We put forward a novel hybrid iterative algorithm to improve the imaging quality of digital holography. An off-axis hologram is added to the iteration process via interference and inverse interference process and becomes part of the constraints. A frequency domain filter varying with the number of iterations is used to improve the competitive advantage of low frequency information in the early iterations
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The Effectual Spectrum Defragmentation Algorithm with Holding Time Sensitivity in Elastic Optical Network (EON) Int. J. Opt. (IF 1.7) Pub Date : 2022-11-11 S. Selva Kumar, J. Kamalakannan, R. Seetha, N. Asha, Kiruba Thangam Raja, S. Sree Dharinya, M. Sucharitha, S. Kalaivani
The elastic optical network (EON) fulfills the upcoming generation network requirements such as high-definition videos, high bandwidth demand services, and ultra-high-definition televisions. The key issues in EON are routing spectrum assignment and spectrum fragmentation for spectrum allocation. The spectrum fragmentation issues are resultant in poor consumption of spectrum resources and an increase
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Terahertz Absorption Characteristics of Multiwalled Carbon Nanotube Aqueous Dispersion Measured by Microfluidic Technique Int. J. Opt. (IF 1.7) Pub Date : 2022-11-4 Yuchai Li, Siyu Qian, Hangyu Zhou, Huimin Jiang, Xue Wang, Bo Su, Cunlin Zhang
Multiwalled carbon nanotubes (MWCNTs) have excellent electronic, mechanical, and structural characteristics; however, their poor dispersion structure and large aggregates severely inhibit their function. A stable MWCNT dispersion in an aqueous solvent has been realized via ultrasonic dispersion and surfactant modification, providing a reference for improving MWCNT dispersion in various materials and
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Fluorescence Radiation and Thermal Effect at the Edge of the Disk-Shaped Laser Crystal Int. J. Opt. (IF 1.7) Pub Date : 2022-10-20 Yongqian Chen, Si Chen, Yuzhi Huang, Xianshi Jia, Hantian Chen, Xiwang Wu
The fluorescence radiation property at the edge of the thin disk crystal is very important to the design of thin disk lasers. In order to study this effect, in this paper, we established a theoretical model to describe the edge fluorescence radiation process in thin disk lasers. Subsequently, we used a thin disk crystal with indium absorption cladding to quantitatively test the edge fluorescence intensity
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Performance Analysis of a Linear Gaussian- and tanh-Apodized FBG and Dispersion Compensating Fiber Design for Chromatic Dispersion Compensation in Long-haul Optical Communication Networks Int. J. Opt. (IF 1.7) Pub Date : 2022-09-02 Isidore Nsengiyumva, Elijah Mwangi, George Kamucha
This paper investigates a novel compensation technique of dispersion effect mitigation using a combination of three- and four-stage-apodized fiber Bragg gratings (FBG) and dispersion compensating fiber (DCF) designs. Two designs using three-stage and four-stage FBG and DCF in combination have been proposed and compared for their performance in mitigating chromatic dispersion effects at 100 km SMF.
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Comparison of Output Performance of Tunable Lasers with Two Different External Cavities Int. J. Opt. (IF 1.7) Pub Date : 2022-08-17 Ya Wang, Shengbao Zhan, Wenran Le, Qinghai Liu, Yuting Wang, Lin Zou, Zhifeng Deng
Based on the simplified model of the tunable fiber laser system, the tuning performance of the laser was analyzed. Two kinds of tunable setups were established, which are the configurations with an external cavity and the configuration of the Littrow cavity. The tuning output characteristics experimentally were analyzed by means of setups. The simulation gives the output efficiency of two tunable lasers
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Single-Pixel Compressive Digital Holographic Encryption System Based on Circular Harmonic Key and Parallel Phase Shifting Digital Holography Int. J. Opt. (IF 1.7) Pub Date : 2022-07-14 B. Lokesh Reddy, Anith Nelleri
An encryption system that combines compressive sensing (CS) and two-step parallel phase shifting digital holography (PPSDH) using double random phase encoding (DRPE) is presented in this paper. The two-step PPSDH is a linear inline holographic scheme and is much suitable for encrypting the 2D/3D information in a single exposure. The distribution of random phase mask (RPM) in the DRPE is implemented
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Atomic Marginal Distribution and Squeezing Phenomena of Correlated Two Modes Interacting with a Three-Level Atom in the Presence of an External Classical Field Int. J. Opt. (IF 1.7) Pub Date : 2022-06-30 A.-S. F. Obada, E.M. Khalil, S. Sanad, H.F. Habeba
The influence of the external classical field on a correlated two-mode of the electromagnetic field interacting with a three-level atom in the structure is studied. A rotation of the atomic basis is used to remove the classical field terms. The time-dependent wave function is obtained by solving the Schrödinger equation. The influence of the classical field on the phenomenon of revival, collapse, squeezing
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A New Highly Secure Optical Image Security Technique Using Gyrator Transform for Image Security-Related Applications Int. J. Opt. (IF 1.7) Pub Date : 2022-06-21 L. Anusree, M. Abdul Rahiman
New methods and apparatuses for information security have evolved as a result of the rapid expansion of optical information processing. Security is one of the major issues in digital image transmission because it can deliver very secret information to any corresponding agency such as the military, biomedical, and security agencies. Previously, various techniques are proposed to perform optical image
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Terahertz Spectral Characteristics of Konjac Gum Determined via Microfluidic Technology Int. J. Opt. (IF 1.7) Pub Date : 2022-06-06 Huimin Jiang, Qingjun Li, Yan Shen, Hangyu Zhou, Yuchai Li, Bo Su, Cunlin Zhang
Terahertz radiation enables nondestructive testing of biological samples, but is challenged by its high absorption in aqueous samples, so microfluidic technology is introduced to reduce the absorption. In this study, we designed a special temperature control device and an electric field device for a microfluidic chip to examine the terahertz spectral characteristics of konjac gum at different temperatures
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Design and Bulk Sensitivity Analysis of a Silicon Nitride Photonic Biosensor for Cancer Cell Detection Int. J. Opt. (IF 1.7) Pub Date : 2022-05-25 Prasanna Kumaar S., Sivabramanian A.
Bulk sensitivity is an important parameter to validate the efficiency of the photonic waveguide sensor. Due to recent advancements in point-of-care silicon photonic biosensing, the focus is to identify the effective way to improve sensitivity. Integrating polydimethylsiloxane (PDMS) microfluidic channel in sensor architecture decreases the sensitivity due to leakage of molecules at edges. The silicon
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Automatic Classification of Red Blood Cell Morphology Based on Quantitative Phase Imaging Int. J. Opt. (IF 1.7) Pub Date : 2022-04-18 Mengduo Jiang, Meng Shao, Xiao Yang, Linna He, Tao Peng, Tao Wang, Zeyu Ke, Zixin Wang, Shu Fang, Yuxin Mao, Xilin Ouyang, Gang Zhao, Jinhua Zhou
Classification of the morphology of red blood cells (RBCs) plays an extremely important role in evaluating the quality of long-term stored blood, as RBC storage lesions such as transformation of discocytes to echinocytes and then to spherocytes may cause adverse clinical effects. Most RBC segmentation and classification methods, limited by interference of staining procedures and poor details, are based
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Design and Numerical Analysis of a Single-Polarization Filter Based on PCF with Plasmonic Layers of Gold and Indium Tin Oxide Int. J. Opt. (IF 1.7) Pub Date : 2022-04-07 Isaac Owusu Mensah, Emmanuel Kofi Akowuah, Iddrisu Danlard, Alexander Kwasi Amoah
This paper presents a single-polarization filter based on PCF with plasmonic layers of gold and indium tin oxide (ITO). The plasmonic materials are metallic gold and ITO coated on the inner walls of two extra-large vertically arranged air holes. The resonance effect is triggered by guided modes propagating through the silica core and coupling to the coating areas. The finite element method is used
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Design, Simulation, and Optimization of Polarization-Independent Four-Port Optical Waveguide Circulator Based on a Ferrite Material Int. J. Opt. (IF 1.7) Pub Date : 2022-03-27 Babak Hashemi, Amir Hamid Alizadeh
Optical circulators are used in optical devices such as multiplexers, demultiplexers, and optical routers. Usually, the magnetic material in the center of the circulator conducts light by interacting with the electromagnetic wave. In this research, a polarization-independent four-port optical waveguide circulator with the presence of a rhombus-shaped ferrimagnetic material has been designed, simulated
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The Linear Fitting Method for Model of PIN Array Receiver in Space Optical Communication Int. J. Opt. (IF 1.7) Pub Date : 2022-03-22 H. Qinggui
We have proposed PIN array as receiver in space optical communication and adopted the double diode model, the widely accepted solar energy output theory, to study its characteristics of output current and voltage. In order to make the calculation simplified, the linear fitting method is put forward. Later, we adopt both the traditional method Newton-Raphson and the new linear fitting method to calculate
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Design of an Athermalizing Bonding Structure for Optical Components Int. J. Opt. (IF 1.7) Pub Date : 2022-03-20 Xiaofeng Liu, Xin Zhang, Xindong Chen
In this paper, an athermalizing connection method of the optical components of high-performance optical objectives that enables them to reduce the deterioration of their performance due to temperature instability is proposed. The optical components of the athermalizing connection structure consist of three parts arranged from the outside to the inside. The materials of the intermediate parts are different
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Properties of the Rotation and Mergence of Twisted Gaussian Schell Model Array Beams Propagating in Turbulent Biological Tissues Int. J. Opt. (IF 1.7) Pub Date : 2022-03-10 Yang Xianyang, Fu Wenyu
In this paper, an analytical expression for describing propagation properties of twisted Gaussian Schell model array (TGSMA) beams through turbulent biological tissues is derived based on the extended Huygens Fresnel integral. With the help of the formulae, properties of the rotation and mergence for the TGSMA beams in turbulent biological tissues are researched in detail. It is found that the TGSMA
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A Simplified Method of Microscopic Polarizability Tensor Differential of Hyper-Raman Spectroscopy Based on the Bond Additivity Model Int. J. Opt. (IF 1.7) Pub Date : 2022-03-10 Yuan Wang, Liping Huang
Coherent anti-Stokes Raman spectroscopy (CARS) and Ccherent anti-Stokes hyper-Raman spectroscopy (CAHRS), as other high-order nonlinear spectroscopy techniques, are widely exploited in many research fields, such as dynamic processes, gene expression spectrum screening, high-resolution spectroscopy, and nonlinear high-resolution imaging. However, it is difficult to make a quantitative analysis of the
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Simulation and Optimization of Temperature Effect in Solar Cells CdTe with Back Connection Cu2O Int. J. Opt. (IF 1.7) Pub Date : 2022-02-23 Parinaz Khaledi, Mahdi Behboodnia, Mohammad Karimi
One of the least studied and most important parameters that are ignored in the simulation and construction of solar cells is temperature. The effect of temperature is complex, and the solar cell is a very temperature-sensitive device. Constructing high-efficient solar cells is an essential task. In this paper, we simulated and studied the effect of temperature on the characteristics of FTO/SnO2/CdS/CdTe/Cu2O
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Design of a Highly Efficient Subwavelength Antireflective Structure for Solar Cells Int. J. Opt. (IF 1.7) Pub Date : 2022-02-07 Lin Chen, Zhao Huang
An efficient optical antireflective (AR) structure plays a vital role in high-performance thin-film solar cells. Here, we design a surface relief AR structure consisting of a two-dimensional (2D) array of a subwavelength ring and pillar-shaped feature, capable of suppressing optical reflection over a wide spectral window of the solar spectrum. Our simulations show that the weighted average reflectance
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Nonlinear Extended Kalman Filter for Attitude Estimation of the Fixed-Wing UAV Int. J. Opt. (IF 1.7) Pub Date : 2022-02-01 Tang Xiaoqian, Zhao Feicheng, Tang Zhengbing, Wang Hongying
Flying vehicle’s navigation, direction, and control in real-time results in the design of a strap-down inertial navigation system (INS). The strategy results in low accuracy, performance with correctness. Aiming at the attitude estimation problem, many data fusion or filtering methods had been applied, which fail in many cases, which attains the nonlinear measurement model, process dynamics, and high
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Three-Dimensional Reconstruction of Rolling Contact Fatigue Characteristics Int. J. Opt. (IF 1.7) Pub Date : 2022-01-24 Chengkai Zeng, Gaopeng Xu, Hai Li, Gang Zhu, Yan Yang
Focusing on the 3D topographic characteristics of rolling contact fatigue, a reconstruction method of the fatigue surface of roller based on point cloud data was proposed in this research. A 3D laser scanner was used to capture the data of point cloud on the surface of the fatigue roller. The gradient segmentation method was used to achieve segmentation of the fatigue contact surface, and the Kd-Tree
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Optimization of the Shell Thickness of the ZnO/CdS Core-Shell Nanowire Arrays in a CZTS Absorber Int. J. Opt. (IF 1.7) Pub Date : 2022-01-20 Chonge Wang, Boubacar Drame, Lucien Niare, Fu Yuegang
Copper-zinc-tin-sulfide (CZTS) solar cells have now become a topic of interest in the solar power generation industry. These are used as an absorber in the zinc oxide (ZnO)/cadmium sulfide (CdS) core-shell nanowire arrays, in order to improve the performance of solar cells. The relationship between the average increase in absorption rates and CdS shell thickness (compared to the thin film) reveals
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Process Plant Upgradation Using Reliability, Availability, and Maintainability (RAM) Criteria Int. J. Opt. (IF 1.7) Pub Date : 2022-01-13 Dongqiao Bai, Qi Yang, Jian Zhang, Shouzhi Li
The objective of this study is to propose a solution for process plant upgradation becoming extinct due to obsoleteness of spares. The study will help in reliability, availability, and maintainability (RAM) based upgradation of control system of process plants in developing countries. Available options for plant upgradation are compact control, modular, and semiautomatic. RAM based upgradation provides
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Reflection Characteristics of Airy Beams Impinging on Graphene-Substrate Surfaces Int. J. Opt. (IF 1.7) Pub Date : 2022-01-03 Fuping Wu, Yuanfei Hui, Zhiwei Cui, Ju Wang
In this work, we analytically and numerically investigate the reflection characteristics of the airy beams impinging on graphene-substrate surfaces. The explicit analytical expressions for the electric and magnetic field components of the airy beams reflected from a graphene-substrate interface are derived. The local-field amplitude, Poynting vector, and spin and orbital angular momentum of the reflected
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Applications of X-Ray Holography Int. J. Opt. (IF 1.7) Pub Date : 2021-12-31 Bingjun Shi, Yuan Fu, Yan Yang
X-ray holography is widely used in material, biology, and industry fields due to its potential to measure the microstructure and dynamic change of objects. In this review, the principle of X-ray holography and the development of this technology in different application fields are systematically summarized and discussed. Through analyzing the advancement of X-ray sources and recording medium, the research
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Coherence Properties and Intensity Distribution of a Partially Coherent Lorentz–Gauss Beam Emerging from the Axicon Int. J. Opt. (IF 1.7) Pub Date : 2021-12-31 Abdu A. Alkelly, Labiba F. Hassan
The propagation of a partially Lorentz–Gauss beam in a uniform-intensity diffractive axicon is studied according to the Huygens–Fresnel principle, the Hermite–Gaussian expansion of a Lorentz function, and using the stationary phase method. We have derived the intensity equation of a partially coherent Lorentz-Gauss beams propagating through uniform-intensity diffractive axicon, and we proved mathematically
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Super-Resolution and Large Depth of Field Model for Optical Microscope Imaging Int. J. Opt. (IF 1.7) Pub Date : 2021-12-29 Ruo-Peng Zheng, Shu-Bin Liu, Lei Li
Due to the limitation of numerical aperture (NA) in a microscope, it is very difficult to obtain a clear image of the specimen with a large depth of field (DOF). We propose a deep learning network model to simultaneously improve the imaging resolution and DOF of optical microscopes. The proposed M-Deblurgan consists of three parts: (i) a deblurring module equipped with an encoder-decoder network for
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Designing an Efficient Emergency Response Airborne Mapping System with Multiple Sensors Int. J. Opt. (IF 1.7) Pub Date : 2021-12-27 Chaoyong Shen, Zongjian Lin, Shaoqi Zhou, Xuling Luo, Yu Zhang
Multisource remote sensing data have been extensively used in disaster and emergency response management. Different types of visual and measured data, such as high-resolution orthoimages, real-time videos, accurate digital elevation models, and three-dimensional landscape maps, can enable producing effective rescue plans and aid the efficient dispatching of rescuers after disasters. Generally, such
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Parallax Barrier for Weakening Vernier Fringe in Naked-Eye LED 3D Display Int. J. Opt. (IF 1.7) Pub Date : 2021-12-22 Hong-Ran Zeng, Wu-Xiang Zhao
In naked-eye LED 3D display, vernier fringe is apparent for a conventional parallax barrier. This paper presents an intended misplaced parallax barrier with discrepant width of Light Translucent Slits (LTSs) to weaken vernier fringe. Because of the wild Black Matrix (BM) of LED display, which causes apparent vernier fringe, we enlarge the width of the LTS and move the slits properly in their periods
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Performance Analysis of a Kretschmann-Based Ag-ITO-Au Surface Plasmon Resonance Sensor through Numerical Simulations Int. J. Opt. (IF 1.7) Pub Date : 2021-12-22 Liang Zhang, Jian’an He, Tao Li, Xiaocong Wu, Dayong Gu, Sixiang Zhang, Ying Ye
Variations of a Kretschmann-structure-based Ag-indium tin oxide- (ITO-) Au surface plasmon resonance (SPR) sensor were explored to improve its sensitivity. The sensor structure was optimised, and its characteristics were studied through numerical simulations. The chip structure that comprised 20 nm Ag/30 nm ITO/10 nm Au yielded the best sensing performance, wherein the angular sensitivity could reach
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Theoretical Investigation of an Air-Slot Mode-Size Matcher between Dielectric and MDM Plasmonic Waveguides Int. J. Opt. (IF 1.7) Pub Date : 2021-12-14 Rami A. Wahsheh
Hybrid integration of dielectric and plasmonic waveguides is necessary to reduce the propagation losses due to the metallic interactions and support of nanofabrication of plasmonic devices that deal with large data transfer. In this paper, we propose a direct yet efficient, very short air-slot coupler (ASC) of a length of 36 nm to increase the coupling efficiency between a silicon waveguide and a silver-air-silver
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Investigation of Light Parameters on Image Quality and Optical Coherence Tomography Int. J. Opt. (IF 1.7) Pub Date : 2021-11-26 Boka Fikadu, Bulcha Bekele, Leta Tesfaye Jule, Anatol Degefa, N. Nagaprasad, Krishnaraj Ramaswamy
In this work, image quality and optical coherence tomography were studied. The results of the study show that there is a very significant difference between ultrasound and optical coherence tomography to produce an image with a different wave. To understand this, we studied the basic principle of optical coherence tomography in the Michelson interferometer using monochromatic and broadband sources
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Flow-Through Portable Antivirus UV-C Optical Enclosures to be Used with Protective Masks Int. J. Opt. (IF 1.7) Pub Date : 2021-11-11 Ozgur Selimoglu
UV-C light is an important disinfection tool against airborne viruses, while also being harmful if the light reaches the human skin. Body-attached reflective flow-through optical enclosures can be used for isolating the UV-C light from the user as well as elevating the irradiance level. In this study, we explain why air-sterilizing light enclosures are more effective than the expectations by introducing
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Investigation on Coaxial Multiwavelength Generation in a CVD Diamond Crystal in the Near-IR Regime Int. J. Opt. (IF 1.7) Pub Date : 2021-10-22 Jingjie Hao, Ze Lv, Yu Shen, Nan Zong, Wei Tu, Shenjin Zhang, Yong Bo, Qinjun Peng, Zuyan Xu
Optical properties and high-order stimulated Raman scattering (SRS) generation in a homemade CVD diamond crystal with 3 × 3 mm2 aperture are investigated in this paper. The high order of the Raman laser has been studied theoretically and demonstrated experimentally. By simulating the Stokes components at different pump intensities and the divergence angles, the pump source was well matched with the