Optics and Lasers in Engineering最新文献_第10页

SNR enhancement for Raman distributed temperature sensors using intrinsic modal functions with improved adaptive wavelet threshold denoising 基于改进自适应小波阈值去噪的内禀模态函数增强拉曼分布温度传感器信噪比

IF 3.5 2区工程技术

Optics and Lasers in Engineering Pub Date : 2025-03-13 DOI: 10.1016/j.optlaseng.2025.108949

Shuyang Jiang , Hongjuan Zhang , Yi Lu , Ruobing Han , Yan Gao , Yu Wang , Baoquan Jin

{"title":"SNR enhancement for Raman distributed temperature sensors using intrinsic modal functions with improved adaptive wavelet threshold denoising","authors":"Shuyang Jiang , Hongjuan Zhang , Yi Lu , Ruobing Han , Yan Gao , Yu Wang , Baoquan Jin","doi":"10.1016/j.optlaseng.2025.108949","DOIUrl":"10.1016/j.optlaseng.2025.108949","url":null,"abstract":"<div><div>To solve the low signal-to-noise ratio (SNR) and loss of signal detail in conventional denoising algorithms for Raman distributed temperature sensors, a novel approach is proposed. This method utilizes improved adaptive wavelet threshold denoising and Pearson correlation coefficient for processing intrinsic modal functions (IMFs). IMFs are obtained by complete ensemble empirical mode decomposition of the original signal, and the correlation coefficient of each IMF is calculated to identify its constituent components. The purely noisy IMFs are discarded, while those containing both noise and temperature signals undergo improved adaptive wavelet threshold denoising, and IMFs containing solely temperature signals are fully preserved. The final signal reconstruction is performed using the IMFs that have undergone noise reduction and the IMFs containing only temperature signals. Experiments show that SNR improvement from 12.83 dB to 19.04 dB at the 25 km fiber, with a reduction in maximum temperature error from 0.95 °C to 0.47 °C, and requires less cumulative averaging time.</div></div>","PeriodicalId":49719,"journal":{"name":"Optics and Lasers in Engineering","volume":"189 ","pages":"Article 108949"},"PeriodicalIF":3.5,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanism study and bacteriostatic performance investigation of axial ultrasonic vibration-assisted nanosecond laser microfabrication of pure titanium surfaces 轴向超声振动辅助纳秒激光微加工纯钛表面机理及抑菌性能研究

IF 3.5 2区工程技术

Optics and Lasers in Engineering Pub Date : 2025-03-12 DOI: 10.1016/j.optlaseng.2025.108915

Yan Wang , Jingyu Yin , Wenhui Li , Yinghuai Dong , Xiaoming Yin , Zhongpeng Zheng , Zihao Yu

{"title":"Mechanism study and bacteriostatic performance investigation of axial ultrasonic vibration-assisted nanosecond laser microfabrication of pure titanium surfaces","authors":"Yan Wang , Jingyu Yin , Wenhui Li , Yinghuai Dong , Xiaoming Yin , Zhongpeng Zheng , Zihao Yu","doi":"10.1016/j.optlaseng.2025.108915","DOIUrl":"10.1016/j.optlaseng.2025.108915","url":null,"abstract":"<div><div>With excellent biocompatibility and good corrosion resistance, Titanium and titanium alloys are ideal materials for orthopedic implants. The antimicrobial properties of orthopedic implants are critical in clinical care. Titanium itself does not have antimicrobial properties which can lead to infection problems. Axial ultrasonic vibration-assisted laser processing technology is developed by researchers as a novel means of surface modification. In this paper, a mathematical model of the lap rate of axial ultrasonic vibration-assisted laser ablation pits is developed, and the feasibility of the model is verified by numerical simulations and experiments using pure titanium as the base material. Errors in lap rates ranged from 2.1 % to 22.4 % between theory calculation and experiments results. Surface morphology at five different lap rates was prepared and observed for bacteriostatic surface evaluation. The results showed that the bacteriostatic surface was achieved at a lap ratio of 76.18. A surface with 97.9 % antibacterial activity was prepared based on a new theoretical model of axial ultrasonic vibration-assisted nanosecond laser processing method, which is instructive for improving the antimicrobial activity of orthopedic implants.</div></div>","PeriodicalId":49719,"journal":{"name":"Optics and Lasers in Engineering","volume":"189 ","pages":"Article 108915"},"PeriodicalIF":3.5,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Computational metrology method of collector mirror for EUV lithography EUV光刻集电极镜的计算计量方法

IF 3.5 2区工程技术

Optics and Lasers in Engineering Pub Date : 2025-03-12 DOI: 10.1016/j.optlaseng.2025.108946

Yunyi Chen , Zexu Liu , Nan Lin

{"title":"Computational metrology method of collector mirror for EUV lithography","authors":"Yunyi Chen , Zexu Liu , Nan Lin","doi":"10.1016/j.optlaseng.2025.108946","DOIUrl":"10.1016/j.optlaseng.2025.108946","url":null,"abstract":"<div><div>The characterization and measurement of the grating structures fabricated on the collector mirror are critical for achieving high spectral purity of the extreme ultraviolet lithography (EUVL) light source. In this paper, we propose a two-step method to enhance metrology for measuring the deformed grating structures on the EUVL collector. A scalar diffraction model is established for the deformation analysis of the collector gratings with high efficiency and accuracy. Then, a two-step method is applied, of which a “Go, No-Go” model acts as the first step to directly identify whether the gratings are qualified, reducing unnecessary calculations. As the second step, only for those unqualified gratings, an improved multi-objective particle swarm optimization model is brought out to accurately make a quantitative reconstruction on the key dimensional parameters of the collector gratings. The proposed method offers a novel scheme for facilitating the inverse scattering problem of the measurement on collector gratings. It eliminates the need for complex numerical calculations and the reliance on a large dataset while still providing accurate results, which is promising for the inline dimensional metrology.</div></div>","PeriodicalId":49719,"journal":{"name":"Optics and Lasers in Engineering","volume":"189 ","pages":"Article 108946"},"PeriodicalIF":3.5,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improved multispectral pyrometry for synchronous full-field temperature and deformation measurement at elevated temperatures 改进的多光谱高温法在高温下同步全场温度和变形测量

IF 3.5 2区工程技术

Optics and Lasers in Engineering Pub Date : 2025-03-12 DOI: 10.1016/j.optlaseng.2025.108899

Jinsong Zhang , Jinyang Wang , Chao Xu , Zhengfei Rao , Zhe Qu , Yunlong Tang , Xue Feng

{"title":"Improved multispectral pyrometry for synchronous full-field temperature and deformation measurement at elevated temperatures","authors":"Jinsong Zhang , Jinyang Wang , Chao Xu , Zhengfei Rao , Zhe Qu , Yunlong Tang , Xue Feng","doi":"10.1016/j.optlaseng.2025.108899","DOIUrl":"10.1016/j.optlaseng.2025.108899","url":null,"abstract":"<div><div>Accurate full-field measurement of temperature and deformation in high-temperature environments has been a critical challenge in materials science, yet current research remains limited, particularly concerning the application of multispectral imaging for comprehensive thermal assessments. Traditional measurement methods often struggle with precision due to the coupling of reflection and emitted radiation, leading to uncertainties and inadequate data in extreme thermal conditions. This work addresses this issue by presenting an improved multispectral pyrometry for full-field temperature measurement and synchronous deformation assessment. We developed a nine-channel multispectral imaging system, facilitating the simultaneous capture of radiative energy across multiple narrow-band wavelengths. By employing a channel separation strategy in conjunction with digital image correlation (DIC) techniques, our system effectively decouples the contributions of temperature and deformation, ensuring spatial and temporal consistency. Validation through flame ablation experiments on C/SiC composites demonstrated the reliability and accuracy of our method. The findings underscore the potential of our improved multispectral pyrometry to enhance measurement precision and fill the existing research void in high-temperature applications.</div></div>","PeriodicalId":49719,"journal":{"name":"Optics and Lasers in Engineering","volume":"189 ","pages":"Article 108899"},"PeriodicalIF":3.5,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Label-free multiplexed detection of diabetic retinopathy biomarkers using fiber optic biosensors: Towards lab-in-the-tear 使用光纤生物传感器进行糖尿病视网膜病变生物标志物的无标签多路检测：走向实验室

IF 3.5 2区工程技术

Optics and Lasers in Engineering Pub Date : 2025-03-10 DOI: 10.1016/j.optlaseng.2025.108943

Sabira Seipetdenova , Toheeb O. Oladejo , Aliya Bekmurzayeva , Christabel K.L. Tan , Minghong Yang , Wilfried Blanc , Daniele Tosi

{"title":"Label-free multiplexed detection of diabetic retinopathy biomarkers using fiber optic biosensors: Towards lab-in-the-tear","authors":"Sabira Seipetdenova , Toheeb O. Oladejo , Aliya Bekmurzayeva , Christabel K.L. Tan , Minghong Yang , Wilfried Blanc , Daniele Tosi","doi":"10.1016/j.optlaseng.2025.108943","DOIUrl":"10.1016/j.optlaseng.2025.108943","url":null,"abstract":"<div><div>Diabetic retinopathy is a common disease in diabetic patients accompanied by such complications as edema, formation of hard exudates, hemorrhages, and eventually vision loss. Detection of the disease at an early stage could increase the effectiveness of therapy and preserve the patient's vision. Measuring the levels of diabetic retinopathy-associated biomarkers using more reliable methods is an alternative and promising way of diagnosis. Optical fiber biosensors have gained rising popularity in providing affordable platforms due to their high-performance capabilities, miniature size, and label-free nature of detection. These properties made them a sensor of choice for developing biosensors for a multiplexed <em>in situ</em> detection of biomarkers in this study. Here, we report an optical fiber-based biosensor that is based on simply fabricated semi-distributed interferometry sensors. After fabrication, sensitive sensors were chosen for further functionalization with two antibodies against biomarkers relevant to diabetic retinopathy to produce biosensors. The detection of the biomarkers was evaluated in artificial tear fluid in static conditions and most importantly in dynamic conditions simulating natural tear flow. This method allowed label-free monitoring of the intensity change with the increasing concentrations of analytes specifically binding on the biosensor surface. Namely, it was possible to detect lipocalin 1 protein with a limit of detection of 5.98 ng/mL and vascular endothelial growth factor down to 26.6 fg/mL. The designed biosensors can become the basis for developing a new method for a clinical diagnosis of eye diseases at early stages of development.</div></div>","PeriodicalId":49719,"journal":{"name":"Optics and Lasers in Engineering","volume":"189 ","pages":"Article 108943"},"PeriodicalIF":3.5,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reconstruction of moving small targets through scattering media: A hierarchical network approach integrating event information 基于散射介质的运动小目标重建：一种整合事件信息的分层网络方法

IF 3.5 2区工程技术

Optics and Lasers in Engineering Pub Date : 2025-03-10 DOI: 10.1016/j.optlaseng.2025.108944

Boyu Yang , Yusen Liao , Jun Ke

{"title":"Reconstruction of moving small targets through scattering media: A hierarchical network approach integrating event information","authors":"Boyu Yang , Yusen Liao , Jun Ke","doi":"10.1016/j.optlaseng.2025.108944","DOIUrl":"10.1016/j.optlaseng.2025.108944","url":null,"abstract":"<div><div>Optical scattering presents substantial challenges for imaging systems across various domains, significantly complicating the acquisition of target information. Existing techniques for imaging through scattering media primarily address static targets. However, continuously moving targets will introduce motion blur into the speckle image, thus severely affecting the reconstruction quality. To address this problem, we innovatively introduce an event camera and propose a two-stage speckle reconstruction network (TSR-Net), which effectively integrates speckle and event information. TSR-Net first deblurs speckle images in its first stage, followed by reconstructing moving targets from the refined speckle images in the second stage. Event data is leveraged throughout the reconstruction process, being extracted and fused at multiple levels to enhance the backbone network's performance in deblurring and reconstruction, thereby guiding training more effectively. The dedicated datasets of speckle images were collected and processed to evaluate our approach. Experimental results highlight the superior reconstruction performance of the proposed method, especially for small pixel-level objects in continuous motion.</div></div>","PeriodicalId":49719,"journal":{"name":"Optics and Lasers in Engineering","volume":"189 ","pages":"Article 108944"},"PeriodicalIF":3.5,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IF 3.5 2区工程技术

Optics and Lasers in Engineering Pub Date : 2025-03-10 DOI: 10.1016/j.optlaseng.2025.108897

Yunjian Bai, Ping Song, Wuyang Zhang, Yi Luo, Yinpeng Wu, Haocheng Geng, Zhaolin Zheng

{"title":"An amplitude-related error reduction method for Time-of-Flight imaging system","authors":"Yunjian Bai, Ping Song, Wuyang Zhang, Yi Luo, Yinpeng Wu, Haocheng Geng, Zhaolin Zheng","doi":"10.1016/j.optlaseng.2025.108897","DOIUrl":"10.1016/j.optlaseng.2025.108897","url":null,"abstract":"<div><div>Time-of-Flight (ToF) imaging system are widely used across various fields due to their high frame rates, high resolution, and robust performance. However, amplitude-related error remains a significant challenge, severely impacting the accuracy of distance measurements. To address this issue, we propose a novel method for reducing amplitude-related error in ToF imaging system. Initially, a comprehensive analysis on the sources of amplitude-related error is conducted, which divide the error into three categories, including distance factor, propagation factor, and noise factor. Based on the analysis, a three-stage method is proposed, including distance-adaptive adjustment, integration time control, and adaptive distance calculation, aiming to reduce the three types of the factors, respectively. Experimental results demonstrate that our method reduces the root mean square error and improves the peak signal-to-noise ratio of the depth images, thus significantly enhancing the performance of ToF imaging systems. We believe that this study provides new insights into error reduction of ToF imaging system and offers a valuable reference for improving the image quality of three-dimensional imaging systems.</div></div>","PeriodicalId":49719,"journal":{"name":"Optics and Lasers in Engineering","volume":"189 ","pages":"Article 108897"},"PeriodicalIF":3.5,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hilbert transform–assisted phase-shifting profilometry resistant to motion-induced errors 希尔伯特变换辅助相移轮廓术抵抗运动引起的误差

IF 3.5 2区工程技术

Optics and Lasers in Engineering Pub Date : 2025-03-10 DOI: 10.1016/j.optlaseng.2025.108936

Qingkang Bao , Fuyang He , Dewu Ren , Bin Sun , Chao Zeng , Jiale Lv , Chunwei Zhang , Hong Zhao

{"title":"Hilbert transform–assisted phase-shifting profilometry resistant to motion-induced errors","authors":"Qingkang Bao , Fuyang He , Dewu Ren , Bin Sun , Chao Zeng , Jiale Lv , Chunwei Zhang , Hong Zhao","doi":"10.1016/j.optlaseng.2025.108936","DOIUrl":"10.1016/j.optlaseng.2025.108936","url":null,"abstract":"<div><div>The phase-shifting method is widely used for phase calculation in fringe projection profilometry but suffers from motion-induced phase errors (MIPEs) in dynamic measurements due to motion-induced phase shifts (MIPSs). Existing methods for mitigating the MIPEs typically rely on assumptions such as temporally linear or spatially uniform MIPSs, limiting their applicability in practical scenarios. To overcome these limitations, this paper presents a novel method that reduces phase errors induced by various types of motion. The method first estimates the MIPSs from the background-removed and Hilbert-transformed fringe images. It then compensates for the MIPEs by incorporating the estimated MIPSs into the phase calculation. Finally, the phase is iteratively optimized using the updated fringe background. The boundary effect of the Hilbert transform is also mitigated in this method. By removing the restrictive assumptions of existing methods, the proposed method can handle objects with complex shapes and motions. Experimental results demonstrate its effectiveness, achieving up to 87.47% additional reduction in MIPEs under non-uniform motion compared with the state-of-the-art method, while maintaining similar performance under uniform motion. Overall, the proposed method is effective and robust in practical dynamic measurements.</div></div>","PeriodicalId":49719,"journal":{"name":"Optics and Lasers in Engineering","volume":"189 ","pages":"Article 108936"},"PeriodicalIF":3.5,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel fast spectral computed tomography reconstruction method with spectral windowed analytical iterative technique 一种新的基于谱窗分析迭代技术的快速光谱计算机断层扫描重建方法

IF 3.5 2区工程技术

Optics and Lasers in Engineering Pub Date : 2025-03-09 DOI: 10.1016/j.optlaseng.2025.108935

Huiying Pan , Xu Jiang , Ligen Shi , Wei Zhang , Xing Zhao

{"title":"A novel fast spectral computed tomography reconstruction method with spectral windowed analytical iterative technique","authors":"Huiying Pan , Xu Jiang , Ligen Shi , Wei Zhang , Xing Zhao","doi":"10.1016/j.optlaseng.2025.108935","DOIUrl":"10.1016/j.optlaseng.2025.108935","url":null,"abstract":"<div><div>Spectral X-ray computed tomography (SCT) has been widely applied in both industrial non-destructive testing and medical diagnosis. SCT reconstruction can be summarized as solving ill-conditioned large sparse nonlinear systems. This work aims to develop a spectral windowed analytical iterative technique (SWAIT) for SCT reconstruction, enhancing both image quality and reconstruction efficiency. A special window function is derived mathematically, and it varies with the number of iterations, X-ray spectrum, basis material images and mass attenuation coefficients. The window function follows the frequency principle “from low to high”, and the dynamic window function can achieve global minimizers. Simulation and real data experiments validate that the proposed method converges quickly, retains effective high-frequency information, suppresses noise, and reduces the propagation of decomposition errors in the image domain. The results demonstrate that the electron density errors of reconstructed water are less than 5%, and those of PET and glass are less than 3%, which shows significant practical potential.</div></div>","PeriodicalId":49719,"journal":{"name":"Optics and Lasers in Engineering","volume":"189 ","pages":"Article 108935"},"PeriodicalIF":3.5,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predictive mechanisms for underwater laser backward detection channel in bubble-induced turbulence 水下激光后向探测通道在气泡诱导湍流中的预测机制

IF 3.5 2区工程技术

Optics and Lasers in Engineering Pub Date : 2025-03-09 DOI: 10.1016/j.optlaseng.2025.108929

Si-guang Zong, Shao-peng Yang, Shan-yong Liang, Jing Cao, Ke Liu

{"title":"Predictive mechanisms for underwater laser backward detection channel in bubble-induced turbulence","authors":"Si-guang Zong, Shao-peng Yang, Shan-yong Liang, Jing Cao, Ke Liu","doi":"10.1016/j.optlaseng.2025.108929","DOIUrl":"10.1016/j.optlaseng.2025.108929","url":null,"abstract":"<div><div>Bubble-induced turbulence poses tremendous challenges to the stability of underwater laser backward detection channels, accuracy of detection information, and resolution of detection systems. Majority of the existing methods are adopted from the research on laser forward transmission channels in underwater wireless optical communication. However, owing to the different reception modes of the two, coupled with the complexity and variability of the underwater backward scattering channel, the forward transmission channel method is not suitable for characterizing the change of laser backward detection channel.. Based on the spatiotemporal distribution law of the underwater bubble field and laser backscattering theory, a weighted predictive mechanism for the laser backward detection channel under the induced turbulence of an asynchronous mixed bubble layer is proposed. Using this mechanism, the distribution characteristics of the intensity fluctuation of a backward laser detection channel under bubble-induced turbulence were studied statistically and experimentally. The spot scintillation coefficient (SI) was introduced to quantify the effects of the bubble density and scale on the laser backscatter intensity. A goodness-of-fit test was performed based on the correlation coefficient (R<sup>2</sup>) and root mean square error to verify the accuracy of the model, and the effect of mixed bubble-induced turbulence on the laser backward detection channel was quantified. The results show that the model has 95 % fitting degree at 50–1000 μm bubble size and 100–2000 cm<sup>−3</sup> bubble density, and the change in bubble size-induced turbulence has a greater effect on channel intensity fluctuation compared to the change in bubble density-induced turbulence. These results provide a potential theoretical application of underwater LiDAR detection.</div></div>","PeriodicalId":49719,"journal":{"name":"Optics and Lasers in Engineering","volume":"189 ","pages":"Article 108929"},"PeriodicalIF":3.5,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0