Optics and Laser Technology最新文献

The fabrication of laser-induced graphene on nomex paper: Effects of process parameters and flexible wearable applications 激光诱导石墨烯在纳米纸上的制备：工艺参数的影响和柔性可穿戴应用

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-05-28 DOI: 10.1016/j.optlastec.2025.113228

Kunyang Li , Gongyu Liu , Qingfeng Li , Chunya Tong , Wai Siong Chai , Chenglong Hua , Wenqiang Wei , Junyuan Jiang , Yongjie Zhao , Sze Shin Low , Hao Nan Li

{"title":"The fabrication of laser-induced graphene on nomex paper: Effects of process parameters and flexible wearable applications","authors":"Kunyang Li , Gongyu Liu , Qingfeng Li , Chunya Tong , Wai Siong Chai , Chenglong Hua , Wenqiang Wei , Junyuan Jiang , Yongjie Zhao , Sze Shin Low , Hao Nan Li","doi":"10.1016/j.optlastec.2025.113228","DOIUrl":"10.1016/j.optlastec.2025.113228","url":null,"abstract":"<div><div>Laser-induced graphene (LIG) is widely employed in the fabrication of eco-friendly flexible electronics because its solvent-free process can support sustainable manufacturing and reduce material waste. Nomex paper is an ideal substrate for LIG production and flexible electronics employment due to its high durability, robust mechanical strength and thermal stability. However, improper processing parameters can result in failure issues including material breakage, bulging, and diminished electrical conductivity. To address these, this study starts with a theoretical reference of the graphitization threshold during LIG production. Based on the calculations, systematic experimental trials were then performed to explore the effects of laser power and scanning speed in terms of morphology and material behaviours of LIG. The effects of laser scanning path strategies were also investigated in terms of electrical, thermal, and mechanical performance. Based on the above, a paper-based LIG sensor was produced and integrated with fracture correction tools for simultaneous temperature and swelling monitoring. Tests proved the superior performances of the sensor in terms of surface morphology, conductivity, defect levels, and mechanical stability. The findings not only illustrate the potential of Nomex paper-based LIGs in flexible electronic devices but also provide practical references for future studies of LIG-based sensor.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"190 ","pages":"Article 113228"},"PeriodicalIF":4.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 characteristics of partially coherent radially polarized off-axis double vortex beam in oceanic turbulence 海洋湍流中部分相干径向极化离轴双涡旋光束特性研究

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-05-28 DOI: 10.1016/j.optlastec.2025.113264

Luli Chen , Dajun Liu , Honglin Gao , Aiyi Dong , Yaochuan Wang

引用次数: 0

DCFZA: a high-quality lensless imaging technique DCFZA：一种高质量无透镜成像技术

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-05-28 DOI: 10.1016/j.optlastec.2025.113236

Zeshui Yu , Zhanquan Tian , Jianshe Ma , Qian Zhou , Ping Su

{"title":"DCFZA: a high-quality lensless imaging technique","authors":"Zeshui Yu , Zhanquan Tian , Jianshe Ma , Qian Zhou , Ping Su","doi":"10.1016/j.optlastec.2025.113236","DOIUrl":"10.1016/j.optlastec.2025.113236","url":null,"abstract":"<div><div>Applications such as mobile imaging, industrial testing, and biomedicine drive the demand for cost-effective and portable imaging systems. Lensless imaging offers advantages such as compact size and low cost, due to its independence from traditional imaging lenses. In this paper, building on Fresnel zone aperture (FZA) technology, we propose a dual compound FZA (DCFZA) for lensless imaging. The design incorporates the twin-image elimination concept from co-axial holography and optimizes the phase combinations of the constituent FZAs, each operating at different orders, to minimize reconstruction noise. Moreover, a high-order back-propagation (HBP) reconstruction method is employed to overcome the information throughput limitation imposed by the minimum aperture size, enabling rapid and sample-independent reconstruction. The DCFZA-based lensless imaging system achieves an 2-fold improvement in resolution over the FZA-based system with the same minimum aperture and a higher enhancement in reconstruction quality compared to BP reconstruction. While maintaining comparable imaging quality, it significantly reduces reconstruction time compared to traditional compressive sensing (CS) based algorithms. Experimental results demonstrate its capability for high-throughput imaging, edge-enhanced imaging, and text recognition. Relying on its rapid and high-throughput reconstruction algorithm, which utilizes direct backpropagation (BP) without iteration or sample-dependent training models, this technology has the potential to achieve real-time imaging with low cost and high compactness system.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"190 ","pages":"Article 113236"},"PeriodicalIF":4.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

The study of interface microstructure and friction properties of single and multiple pass CuCrZr laser cladding on QT500-7 ductile cast iron QT500-7球墨铸铁CuCrZr激光单道次和多道次熔覆界面组织及摩擦性能研究

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-05-28 DOI: 10.1016/j.optlastec.2025.113206

Jinlong Su , Jingwei Liang , Ye Ruan , Minghui Guan , Cui Luo , Guotai Chen , Xiaoming Qiu

{"title":"The study of interface microstructure and friction properties of single and multiple pass CuCrZr laser cladding on QT500-7 ductile cast iron","authors":"Jinlong Su , Jingwei Liang , Ye Ruan , Minghui Guan , Cui Luo , Guotai Chen , Xiaoming Qiu","doi":"10.1016/j.optlastec.2025.113206","DOIUrl":"10.1016/j.optlastec.2025.113206","url":null,"abstract":"<div><div>In this study, the focus was on the fabrication of single and multi-pass CuCrZr coatings on the surface of QT500-7 ductile iron by laser cladding technique. The evolution of the interfacial microstructure between the coatings and the substrate was systematically analyzed, and the friction and wear properties of the multi-pass Cu alloy coatings were tested. The experimental findings demonstrate that during the single-pass melting process, a petal-like Cu-Fe-C phase is formed between the copper alloy layer and the ductile iron substrate, and a Fe<sub>4</sub>Cu<sub>3</sub> phase is generated in the interfacial region. The application of multi-pass laser cladding resulted in the formation of a continuous and uniform coating structure, accompanied by an increase in grain size to 13.64 μm. This process suppressed the formation of the Fe<sub>4</sub>Cu<sub>3</sub> phase and enhanced the crystalline quality of the Cu-based phase. Friction and wear experiments demonstrated that the porous copper alloy coatings exhibited low coefficients of friction (0.053–0.303) and minimal wear depths at low loads (10 N, 20 N). However, the coefficient of friction increased to 0.523 at a load of 50 N, indicating that the copper alloy layer is less wear resistant at higher loads.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"190 ","pages":"Article 113206"},"PeriodicalIF":4.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

High-precision visual navigation device calibration method based on collimator 基于准直器的高精度视觉导航装置标定方法

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-05-28 DOI: 10.1016/j.optlastec.2025.113170

Shunkun Liang , Dongcai Tan , Banglei Guan , Zhang Li , Guangcheng Dai , Nianpeng Pan , Liang Shen , Yang Shang , Qifeng Yu

{"title":"High-precision visual navigation device calibration method based on collimator","authors":"Shunkun Liang , Dongcai Tan , Banglei Guan , Zhang Li , Guangcheng Dai , Nianpeng Pan , Liang Shen , Yang Shang , Qifeng Yu","doi":"10.1016/j.optlastec.2025.113170","DOIUrl":"10.1016/j.optlastec.2025.113170","url":null,"abstract":"<div><div>Visual navigation devices require precise calibration to achieve high-precision localization and navigation, which includes camera and attitude calibration. To address the limitations of time-consuming camera calibration and complex attitude adjustment processes, this study presents a collimator-based calibration method and system. We designed a calibration frame with a collimator as its core component. Based on the optical characteristics of the collimator, a single-image camera calibration algorithm is introduced. In addition, integrated with the precision adjustment mechanism of the calibration frame, a rotation transfer model between coordinate systems enables efficient attitude calibration. Experimental results demonstrate that the proposed method achieves accuracy and stability comparable to traditional multi-image calibration techniques. Specifically, the re-projection errors <span><math><mo>≤</mo></math></span>0.1463 pixels and average attitude angle errors <span><math><mo>≤</mo></math></span>0.0586<span><math><msup><mspace></mspace><mrow><mo>∘</mo></mrow></msup></math></span> with a standard deviation <span><math><mo>≤</mo></math></span>0.0257<span><math><msup><mspace></mspace><mrow><mo>∘</mo></mrow></msup></math></span>, demonstrating high precision and robustness.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"190 ","pages":"Article 113170"},"PeriodicalIF":4.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

High performance sinusoidal phase modulating interferometer based on fundamental frequency mixing PGC demodulation and balanced detection 基于基频混频PGC解调和平衡检测的高性能正弦相位调制干涉仪

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-05-28 DOI: 10.1016/j.optlastec.2025.113251

Lieshan Zhang , Yicheng Lan , Qiyuan Zhang , Wenjun Fang , Huajun Pan

{"title":"High performance sinusoidal phase modulating interferometer based on fundamental frequency mixing PGC demodulation and balanced detection","authors":"Lieshan Zhang , Yicheng Lan , Qiyuan Zhang , Wenjun Fang , Huajun Pan","doi":"10.1016/j.optlastec.2025.113251","DOIUrl":"10.1016/j.optlastec.2025.113251","url":null,"abstract":"<div><div>A PGC demodulation scheme combining fundamental frequency mixing and balanced detection is proposed to enhance the measurement performance of sinusoidal phase modulating interferometer (SPMI). First, two interferometric signals with identical optical paths are differentially amplified by the principle of balanced detection. As a result, a high signal-to-noise ratio measurement signal, without DC bias, is obtained. Next, the orthogonal interferometric signal pair is obtained using the fundamental frequency mixing method, which not only reduces the phase modulation depth but also increases the amplitude of the useful signal component. Then Lissajous ellipse fitting is used to realize the normalization of the orthogonal interferometric signal pair. Finally, the phase demodulation of the measurement signal is achieved by using differential cross-multiplication (DCM) or arctangent (Arctan) algorithms. A sinusoidal phase modulating polarization interferometer based on Michelson structure is built, and experimental tests on the proposed demodulation scheme are conducted. The experimental results of nano displacement measurement investigate the accuracy of the proposed method and system within a deviation of <span><math><mo>±</mo></math></span>1.5 nm. Vibration measurement experiments at various frequencies demonstrate the proposed scheme has superior measurement performance. Under comparable hardware conditions, the proposed scheme has the optimal performance in terms of total harmonic distortion (THD), signal-to-noise distortion ratio (SINAD) and dynamic range of the demodulation results. Compared with the conventional methods, for the Arctan and the DCM phase demodulation approaches, the proposed scheme achieves a reduction in THD by 19.63 and 15.75 dB, respectively. It also enhances the SINAD by 12.03 and 8.04 dB, and increases the dynamic range by 18.52 dB @ 55 Hz and 15.54 dB @ 55 Hz, respectively.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"190 ","pages":"Article 113251"},"PeriodicalIF":4.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Fabrication and characterization of shape- and topology-optimized optical cavities with deep sub-wavelength confinement for interfacing with colloidal quantum dots 用于胶体量子点界面的深亚波长约束光学腔的形状和拓扑优化的制造和表征

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-05-28 DOI: 10.1016/j.optlastec.2025.113038

Mohammad Abutoama , Rasmus Ellebæk Christiansen , Adrian Holm Dubré , Meng Xiong , Jesper Mørk , Philip Trøst Kristensen

{"title":"Fabrication and characterization of shape- and topology-optimized optical cavities with deep sub-wavelength confinement for interfacing with colloidal quantum dots","authors":"Mohammad Abutoama , Rasmus Ellebæk Christiansen , Adrian Holm Dubré , Meng Xiong , Jesper Mørk , Philip Trøst Kristensen","doi":"10.1016/j.optlastec.2025.113038","DOIUrl":"10.1016/j.optlastec.2025.113038","url":null,"abstract":"<div><div>We employ a combined shape- and topology-optimization strategy to design manufacturable two-dimensional photonic crystal-based optical nanocavities that confine light to length scales well below the resonance wavelength. We present details of the design strategy as well as scanning electron micrographs of the fabricated indium phosphide cavities with a compact footprint of approximately <span><math><mrow><mn>4.5</mn><mi>λ</mi><mo>×</mo><mn>4.5</mn><mi>λ</mi></mrow></math></span>, which feature gaps on the order of 10 nm and a theoretical mode volume in the gap center below <span><math><msup><mrow><mn>0.1</mn><mspace></mspace><mo>(</mo><mi>λ</mi><mo>/</mo><mn>2</mn><msub><mrow><mi>n</mi></mrow><mrow><mi>air</mi></mrow></msub><mo>)</mo></mrow><mrow><mn>3</mn></mrow></msup></math></span>. Subsequent optical characterization of the far-field emission as well as Purcell-enhanced photoluminescence from the cavities with and without spin-coated colloidal quantum dots are compared to numerical simulations and reveal an interesting interplay of two spectrally adjacent modes. The results corroborate the potential of the fabrication process for ensuring high yield and reliable performance as well as the viability of the material platform for exploring light-matter interaction with colloidal QDs.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"190 ","pages":"Article 113038"},"PeriodicalIF":4.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Image feature guided self-adaptive subset configuration for digital image correlation 基于图像特征的数字图像相关自适应子集配置

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-05-27 DOI: 10.1016/j.optlastec.2025.113240

Rui Li, Yifei Zhou, Yatao Xu, Licheng Zhou, Bao Yang, Zejia Liu, Yiping Liu, Liqun Tang, Zhenyu Jiang

{"title":"Image feature guided self-adaptive subset configuration for digital image correlation","authors":"Rui Li, Yifei Zhou, Yatao Xu, Licheng Zhou, Bao Yang, Zejia Liu, Yiping Liu, Liqun Tang, Zhenyu Jiang","doi":"10.1016/j.optlastec.2025.113240","DOIUrl":"10.1016/j.optlastec.2025.113240","url":null,"abstract":"<div><div>The size and shape of subset are critical factors influencing the accuracy and robustness of digital image correlation (DIC) measurements. In current DIC implementations, a subset with fixed size and shape is manually configured, highly dependent on user expertise. Moreover, this configuration often leads to suboptimal performance of DIC because it cannot fit the spatially varying speckle pattern quality or inhomogeneous deformation field. To overcome these issues, a self-adaptive subset configuration strategy is proposed that can dynamically optimize the subset at each point of interest (POI) to achieve optimal accuracy and resolution of measurements. In contrast to existing methods, our approach utilizes the information of image features to take both the localized speckle pattern quality for registration and the smoothness of deformation field into account. Experimental studies demonstrate that the method adapts effectively to various speckle patterns. It optimizes subset size and shape without manual intervention in measuring inhomogeneous deformation field and stereo reconstruction of complex surface topography. By enhancing the measurement accuracy and robustness while minimizing user dependence, this strategy is expected to facilitate the applications of DIC in diverse and challenging scenarios.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"190 ","pages":"Article 113240"},"PeriodicalIF":4.6,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Fabrication of an infrared microlens array on fluorotellurite glass via wet etching-assisted femtosecond laser direct writing 湿蚀刻辅助飞秒激光直写技术在氟碲玻璃上制备红外微透镜阵列

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-05-27 DOI: 10.1016/j.optlastec.2025.113231

Xianda Li , Feng Liu , Rui Wan , Weinan Li , Pengfei Wang

引用次数: 0

Highly stable, 72 W average power, 76 MHz repetition rate femtosecond hybrid PCMA-FCPA Yb-fiber amplifier 高度稳定，平均功率72 W，重复频率76 MHz飞秒混合PCMA-FCPA yb光纤放大器

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-05-27 DOI: 10.1016/j.optlastec.2025.113261

Jokūbas Pimpė , Jonas Banys , Simona Armalytė , Jonas Jakutis Neto , Vygandas Jarutis , Audrius Dubietis , Julius Vengelis

{"title":"Highly stable, 72 W average power, 76 MHz repetition rate femtosecond hybrid PCMA-FCPA Yb-fiber amplifier","authors":"Jokūbas Pimpė , Jonas Banys , Simona Armalytė , Jonas Jakutis Neto , Vygandas Jarutis , Audrius Dubietis , Julius Vengelis","doi":"10.1016/j.optlastec.2025.113261","DOIUrl":"10.1016/j.optlastec.2025.113261","url":null,"abstract":"<div><div>We report on a high repetition rate, high average power femtosecond laser amplification system based on a Yb-doped polarization-maintaining double-clad rod-type large mode area photonic crystal fiber, employing a combination of pre-chirp managed amplification (PCMA) and fiber chirped pulse amplification (FCPA) techniques. The system operates at a 76 MHz pulse repetition rate and delivers nearly transform-limited 114 fs pulses with an average power of 72 W (82 W before compression), which exhibit Gaussian spatial intensity distribution with an excellent beam quality factor (M<sup>2</sup>) below 1.1 and a high polarization extinction ratio. Long-term stability tests performed over 70 hours revealed robust amplifier performance with a power fluctuation root mean square error of 0.16 %. The shortest compressed pulses with a duration of 64 fs in the self-phase modulation-assisted amplification regime were also demonstrated, without any risk of damage to the amplifier medium.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"190 ","pages":"Article 113261"},"PeriodicalIF":4.6,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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