International Journal of Optics最新文献_第2页

Classical and Quantum Surface Plasmon Resonance Biosensing 经典和量子表面等离子体共振生物传感

4区物理与天体物理

International Journal of Optics Pub Date : 2023-10-18 DOI: 10.1155/2023/5538161

K. T. Mpofu, S. Ombinda-Lemboumba, P. Mthunzi-Kufa

引用次数: 0

3D Reconstruction and Measurement Analysis of a Dense Point Cloud Fused with a Depth Image 密集点云与深度图像融合的三维重建与测量分析

IF 1.7 4区物理与天体物理

International Journal of Optics Pub Date : 2023-09-08 DOI: 10.1155/2023/6826981

Yujing Qiao, Ning Lv, Siyuan Zhang

{"title":"3D Reconstruction and Measurement Analysis of a Dense Point Cloud Fused with a Depth Image","authors":"Yujing Qiao, Ning Lv, Siyuan Zhang","doi":"10.1155/2023/6826981","DOIUrl":"https://doi.org/10.1155/2023/6826981","url":null,"abstract":"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 mechanism of surface dense reconstruction based on the patch-based multiview stereo (PMVS) algorithm is analyzed. Combined with the principle of view angle selection of stereo images, surface point cloud density reconstruction is performed. Then, the depth value is optimized by the region growing method, and the optimization model is established. The depth image is fused into a dense surface, and the reconstructed part is supplemented by the depth information. Finally, the Markov random field (MRF) is introduced to describe the richness of image details, and combined with the calculating method of the area coordinate, the texture coordinates are accurately calculated to reproduce the texture details of the 3D reconstruction model. 3D reconstruction experiments are performed on multiple indoor and outdoor model surfaces, and the experimental results show that the proposed method can achieve complete and accurate reconstruction of complex surface objects. Our method provides technical support for complex surface topography detection and has industrial practical significance.","PeriodicalId":55995,"journal":{"name":"International Journal of Optics","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46450932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and Analysis of Target Simulator Using All Spherical System with High Matching Rate 高匹配率全球面目标模拟器的设计与分析

IF 1.7 4区物理与天体物理

International Journal of Optics Pub Date : 2023-09-08 DOI: 10.1155/2023/4053258

Shijie Li, Xiaojing Zhang, Kai Zhao, Zihuai Li, Xiong Li, Lumin Zhao, Jin Zhang, Changlong Cai

引用次数: 0

One-Point and Multiline Calibration Fiber-Optic Laser-Ablation Spark-Induced Breakdown Spectroscopy for Quantitative Analysis of Elements in Aluminum Alloys 用于铝合金中元素定量分析的单点多线校准光纤激光烧蚀火花诱导击穿光谱

IF 1.7 4区物理与天体物理

International Journal of Optics Pub Date : 2023-07-17 DOI: 10.1155/2023/2562588

Yipeng Liao, Xiaoyong He, Xi Wu

{"title":"One-Point and Multiline Calibration Fiber-Optic Laser-Ablation Spark-Induced Breakdown Spectroscopy for Quantitative Analysis of Elements in Aluminum Alloys","authors":"Yipeng Liao, Xiaoyong He, Xi Wu","doi":"10.1155/2023/2562588","DOIUrl":"https://doi.org/10.1155/2023/2562588","url":null,"abstract":"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 source and spark discharge to enhance the atomic emission. A portable multichannel fiber spectrometer is used to quickly collect spectra in the nongated mode. The concentrations of four elements (Mg, Cr, Cu, and Mn) in four aluminum alloy samples were calculated using the simple and efficient OP-MLC method, which involves taking another sample with a similar matrix as the standard sample. The average relative errors (AREs) for Mg, Cr, Cu, and Mn were 6.38%, 28.09%, 21.92%, and 18.97%, respectively. When the certified concentrations are greater than 0.02 wt.%, the ARE is only 13.04%. The OP-MLC FO-LA-SIBS system is compact, features simple spectra processing, and offers effective measurement, providing a convenient method for rapid and efficient quantitative analysis of elements in aluminum alloys in industrial production.","PeriodicalId":55995,"journal":{"name":"International Journal of Optics","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41534818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solar Light Radiometry Calibration Unit for a ScanPol Polarimeter of the Aerosol-UA Space Mission 用于气溶胶- ua空间任务的扫描偏振计的太阳光辐射测量校准单元

IF 1.7 4区物理与天体物理

International Journal of Optics Pub Date : 2023-07-10 DOI: 10.1155/2023/9387645

I. Syniavskyi, Y. Oberemok, V. Danylevsky, Y. Ivanov, R. Osypenko, M. Sosonkin, G. Milinevsky

{"title":"Solar Light Radiometry Calibration Unit for a ScanPol Polarimeter of the Aerosol-UA Space Mission","authors":"I. Syniavskyi, Y. Oberemok, V. Danylevsky, Y. Ivanov, R. Osypenko, M. Sosonkin, G. Milinevsky","doi":"10.1155/2023/9387645","DOIUrl":"https://doi.org/10.1155/2023/9387645","url":null,"abstract":"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 of the ScanPol. We consider the calibration unit design and operation principle to form a luminous flux with unchanged or well-predicted characteristics in a specified direction. The construction of the radiometric calibration unit is based on a sun-illuminated reflective diffuser made from the white opal glass MS20. We evaluated the scattering and polarization characteristics of the diffuser in laboratory experiments at a wide range of wavelengths. The results suggest that the polarization properties of the diffuser are negligible. The diffuser scattering parameters are close to Lambertian for illuminance conditions, which is necessary for radiometric calibration. The calibration unit was manufactured and tested during field observations of solar radiation. The results will be used for its improvement, mainly to reduce the observed stray scattered radiation entering the telescopes of the ScanPol polarization state analyzer.","PeriodicalId":55995,"journal":{"name":"International Journal of Optics","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41523383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A MIMO-Enabled Free Space Optical Link under Log-Normal Fading/Gamma-Gamma Channel: Exploring an Optimal Modulation Scheme 对数正态衰落/伽玛-伽玛信道下支持MIMO的自由空间光链路：优化调制方案的探索

IF 1.7 4区物理与天体物理

International Journal of Optics Pub Date : 2023-05-17 DOI: 10.1155/2023/8020925

H. E. Adardour, S. Kameche, Mehtab Singh

{"title":"A MIMO-Enabled Free Space Optical Link under Log-Normal Fading/Gamma-Gamma Channel: Exploring an Optimal Modulation Scheme","authors":"H. E. Adardour, S. Kameche, Mehtab Singh","doi":"10.1155/2023/8020925","DOIUrl":"https://doi.org/10.1155/2023/8020925","url":null,"abstract":"The technology of free-space optical communication (FSOC) systems has some distinctive merits compared to other technologies. Its use is extremely beneficial to meet the exigencies of optical telecommunications and wireless networks (OTWNs). However, since the OTWNs transport a lot of data, the choice of a reliable modulation scheme is highly crucial. To this end, the focus of this paper is an in-depth study of a Point-to-Point Optical Link (P2P-OL) system under a FSOC-Multiple-Input Multiple-Output (MIMO) channel using an optimal modulation scheme. Furthermore, atmospheric turbulence (AT) effects over the FSOC-MIMO channel are incorporated in the proposed system to obtain substantial results. The performance analysis test of the proposed high-rate P2P-OL system is validated under the case that the channel decreases significantly when the AT gets strong regimes. Finally, the proposed system uses an optimal Non-Return to Zero Pulse Generator-Mach-Zehnder Modulator ((NRZPG-MZM)) scheme, which displays acceptable performance levels in a dust-fog meteorological environment under a LNF FSOC-9 × 9 channel with the attenuation value of 59.66 dB/km (i.e., max OSNR = 24.9 dB, min BER = 1e − 09, and max Q-factor = 6), whereas with the same environment under a G-G FSOC-9 × 9 channel, the attenuation value is 58.55 dB/km (i.e., max OSNR = 24.67 dB, min BER = 1e − 09, and max Q-factor = 6).","PeriodicalId":55995,"journal":{"name":"International Journal of Optics","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42045871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Feasibility Study on Monitoring Shelf Life of Bottled Natural Fruit Juice Using Laser-Induced Autofluorescence 激光诱导自体荧光法监测瓶装天然果汁保质期的可行性研究

IF 1.7 4区物理与天体物理

International Journal of Optics Pub Date : 2023-04-29 DOI: 10.1155/2023/7458190

Peter Osei-Wusu Adueming, Jerry Opoku-Ansah, Andrew Atiogbe Huzortey, Charles Lloyd Yeboah Amuah, Kwasi Nyandey, Moses Jojo Eghan, Benjamin Anderson, Samuel Sonko Sackey

{"title":"A Feasibility Study on Monitoring Shelf Life of Bottled Natural Fruit Juice Using Laser-Induced Autofluorescence","authors":"Peter Osei-Wusu Adueming, Jerry Opoku-Ansah, Andrew Atiogbe Huzortey, Charles Lloyd Yeboah Amuah, Kwasi Nyandey, Moses Jojo Eghan, Benjamin Anderson, Samuel Sonko Sackey","doi":"10.1155/2023/7458190","DOIUrl":"https://doi.org/10.1155/2023/7458190","url":null,"abstract":"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 spectra data were acquired for nine (9) continuous days on three batches of BNFJ samples purchased from a certified retailer. Deconvolution of the LIAF spectra revealed underlying peaks representing constituents of the BNFJ. Principal component analysis (PCA) was able to monitor the trend in the changes of the BNFJ as it aged. Partial least square regression (PLSR) predicted the exact day from the production of the BNFJ accurately at 96.6% and 98.8% in the training and testing sets, respectively. We, therefore, propose the LIAF combined with multivariate analysis as a potential tool for nondestructive, rapid, and relatively inexpensive monitoring of the shelf life of BNFJ.","PeriodicalId":55995,"journal":{"name":"International Journal of Optics","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44427331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on the Seed Respiration CO2 Detection System Based on TDLAS Technology 基于TDLAS技术的种子呼吸CO2检测系统研究

IF 1.7 4区物理与天体物理

International Journal of Optics Pub Date : 2023-03-22 DOI: 10.1155/2023/8017726

Lu Gao, Ying Zang, Guangwu Zhao, Hengnian Qi, Qizhe Tang, Qingshan Liu, Liangquan Jia

{"title":"Research on the Seed Respiration CO2 Detection System Based on TDLAS Technology","authors":"Lu Gao, Ying Zang, Guangwu Zhao, Hengnian Qi, Qizhe Tang, Qingshan Liu, Liangquan Jia","doi":"10.1155/2023/8017726","DOIUrl":"https://doi.org/10.1155/2023/8017726","url":null,"abstract":"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 a 2004 nm distributed feedback (DFB) laser as the light source, and a double-layer seed respiration device (about 1.5 L) is designed based on Herriott cell with an effective optical path of about 21 meters. Then, the second harmonic (2f) signal is extracted by the wavelength modulation method for CO2 concentration inversion. When the ambient temperature and pressure changes greatly, the corrected 2f signal is used for CO2 concentration inversion to improve the accuracy. A series of verification and comparison experiments have proved that the seed respiration CO2 detection system has the advantages of strong stability, high sampling frequency, and high detection accuracy. Finally, we used the developed system to measure the respiration intensity and respiration rate of 1 g corn seeds. The respiration intensity curves and respiration rate change details show that the seed respiration CO2 detection system is more suitable for a small amount of seeds than nondispersive infrared (NDIR) CO2 sensor and gas chromatography in real-time monitoring of the breathing process.","PeriodicalId":55995,"journal":{"name":"International Journal of Optics","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48981256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and Theoretical Analysis of Highly Negative Dispersion-Compensating Photonic Crystal Fibers with Multiple Zero-Dispersion Wavelengths 多个零色散波长的高负色散补偿光子晶体光纤的设计与理论分析

IF 1.7 4区物理与天体物理

International Journal of Optics Pub Date : 2023-03-22 DOI: 10.1155/2023/5612791

John Napari N-yorbe, E. Akowuah, Iddrisu Danlard, Alexander Kwasi Amoah

{"title":"Design and Theoretical Analysis of Highly Negative Dispersion-Compensating Photonic Crystal Fibers with Multiple Zero-Dispersion Wavelengths","authors":"John Napari N-yorbe, E. Akowuah, Iddrisu Danlard, Alexander Kwasi Amoah","doi":"10.1155/2023/5612791","DOIUrl":"https://doi.org/10.1155/2023/5612791","url":null,"abstract":"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 of the PCFs. The numerical analysis shows that the proposed PCF, i.e., PCF (b), exhibits multiple ZDWS and also achieves a high negative chromatic dispersion of −15089.0 ps/nm·km at 1.55 \u0000 \u0000 μ\u0000 m\u0000 \u0000 wavelength, with the multiple ZDWs occurring within the range from 0.8 to 2.0 \u0000 \u0000 μ\u0000 m\u0000 \u0000 range. Other optical properties such as the confinement loss of 0.059 dB/km, the birefringence of \u0000 \u0000 4.11\u0000 ×\u0000 \u0000 \u0000 10\u0000 \u0000 \u0000 −\u0000 1\u0000 \u0000 \u0000 \u0000 , the nonlinearity of 18.92 \u0000 \u0000 \u0000 \u0000 W\u0000 \u0000 \u0000 −\u0000 1\u0000 \u0000 \u0000 \u0000 \u0000 k\u0000 m\u0000 \u0000 \u0000 −\u0000 1\u0000 \u0000 \u0000 \u0000 , and a normalized frequency of 2.633 was also achieved at 1.55 \u0000 \u0000 μ\u0000 m\u0000 \u0000 wavelength. These characteristics make the PCF suitable for high-speed, long-distance optical communication systems, optical sensing, soliton pulse transmission, and polarization-maintaining applications.","PeriodicalId":55995,"journal":{"name":"International Journal of Optics","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47107936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Frequency Scanning Multibeamforming Method Based on CFBG Photonic Microwave Oscillation 基于CFBG光子微波振荡的频率扫描多波束形成方法

IF 1.7 4区物理与天体物理

International Journal of Optics Pub Date : 2023-03-21 DOI: 10.1155/2023/8192632

Ning Mu, Hongxia Guo, Wanrong Gao

引用次数: 0