Article
Optics
Qiwei Li, Qiyu Wang, Fang Lu, Yang Cao, Xu Zhao
Summary: LSHIP is a lenslet-array-based snapshot hyperspectral imaging polarimeter that combines spectral polarization modulation with integral field imaging spectrometry. It can simultaneously acquire three-dimensional spatial and spectral data-cubes for linear Stokes parameters in a single snapshot.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Yin Xiao, Lina Zhou, Wen Chen
Summary: This paper introduces a correspondence imaging approach for reconstructing high-quality objects through complex scattering media. By deriving a rectified theory and introducing temporal correction, the proposed method eliminates the effect of dynamic scaling factors. Experimental results demonstrate the advantages of the proposed method over conventional methods in complex scattering environments, and it can also be combined with other methods to further enhance the quality of reconstructed objects.
OPTICS AND LASERS IN ENGINEERING
(2024)
Review
Optics
De-Rong Sun, Gong Wang, Yunfei Li, Yu Yu, Chengbin Shen, Yulei Wang, Zhiwei Lua
Summary: This paper investigates the application of laser processing in silicon carbide (SiC). Based on the classification of pulse widths, the removal mechanisms of SiC using nanosecond and ultrafast laser are summarized, and the characteristics of laser-drilled SiC and SiC matrix composites with different pulse scales are analyzed. In addition, drilling is performed using lasers of different pulse widths in a liquid-assisted environment, and the drilling parameters are compared. Finally, laser drilling techniques for SiC and SiC matrix composites are summarized and discussed.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Renqin Dou, Lei Huang, Yao Liu, Jinyun Gao, Xiaofei Wang, Deming Zhang, Jianqiao Luo, Wenpeng Liu, Haihe Jiang, Qingli Zhang
Summary: The laser crystals of Nd:YAG and Nd:GdYAG with gradual concentration were grown successfully using a Kyropoulos Similar Method. The laser performance of the grown crystals was characterized, and it was found that pumping along the low concentration end greatly improved the laser efficiency.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Grzegorz Gomolka, Dariusz Pysz, Ryszard Buczynski, Michas Nikodem
Summary: This paper investigates the optical detection of oxygen in the A-band using tunable laser diode spectroscopy and explores the use of hollow-core optical fibers as an alternative to conventional gas absorption cells. The research presents a convenient, robust, and scalable all-fiber setup using a silica anti-resonant hollow-core fiber. The results show successful absorption spectra recording and detection limit achievement for oxygen, as well as the versatility of the sensing approach in simultaneously detecting oxygen and methane.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Jiaqi Chen, Chao Chen, Qi Guo, Jingjing Sun, Jianwei Zhang, Yinli Zhou, Zhaohui Liu, Yongsen Yu, Li Qin, Yongqiang Ning, Lijun Wang
Summary: This study demonstrates an external-cavity semiconductor laser with linear polarization and a narrow linewidth. A birefringent Bragg grating prepared using a femtosecond laser point-by-point technique in a polarization-maintaining fiber is used to provide external-cavity feedback and enable linewidth narrowing. The compact and robust laser achieved high output power and polarization extinction ratio.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Hong Wang, Xiao-Qian Wang, Chao Gao, Xuan Liu, Yu Wang, Huan Zhao, Zhi-Hai Yao
Summary: In this paper, a novel method based on multi-scale light fields singular value decomposition is proposed to achieve high-quality computational ghost imaging under low sampling rates. The method can further reduce the number of measurements as the number of splicing matrices increases.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Heng Wu, Shaojuan Luo, Meiyun Chen, Huapan Xiao, Tao Wang, Chunhua He
Summary: This paper proposes a super-resolution image restoration method for microlens array imaging system (MLAIS) by segmenting the image, aligning sub-images, recovering SR image, and performing gray transformation to enhance image quality.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Guan-Hong Li, Chieh Huang, Feng-Jung Kao, Min-Hsiung Shih, Hao-Chung Kuo, Yi-Jen Chiu, Chao-Kuei Lee
Summary: In this study, supercontinuum generation from 645.3 nm to 851 nm was demonstrated by using a high-order mode and engineering the dispersion within the high nonlinear refractive index material Ta2O5 waveguide. The results show clear potential for applications.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Tong Chen, Hao Zhang, Miaoling Yang, Yuan Yao, Wei Lin, Shaoxiang Duan, Bo Liu
Summary: In this paper, a dual-core eccentric-hole fiber (DCEHF) microresonator is proposed for achieving single-longitudinal mode (SLM) laser emission. The enhanced pump light field induced by scattering effect of the two fiber cores is utilized in the microresonator. The experimental results show that the proposed microresonator supports highly stable SLM laser emission and possesses several desirable merits.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Peng Wang, Tao Peng, Shuhe Zhang, Fengya Lu, Zhensheng Zhong, Jun Li, Yi Wang, Jinhua Zhou
Summary: In this study, a sparse prior phase unwrapping (SPUP) algorithm was proposed to solve the wrapped phase problem in interferograms. By introducing L0-norm and L1-norm regularizations, the SPUP method exhibited strong denoising ability and high phase fidelity. It could effectively correct uneven background noise and phase shifting, demonstrating great potential in various interferometry measurements.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Hao Zhu, Min Zhang, Weichao Ren, Viboon Saetang, Jinzhong Lu, Yucheng Wu, Kun Xu, Yang Liu, Zhaoyang Zhang
Summary: This study investigates the laser-induced localized and maskless electrodeposition of micro copper structures on p-type silicon surface through simulation and experimental study. It demonstrates the selective enhancing effect of laser irradiation on electrical conductivity via thermal and photoconductive manner. Experimental tests of laser-induced electrodeposition show the effectiveness of the proposed method in producing micro-wires, regional coatings, and complex patterns on silicon surface without a mask. The study discusses the factors affecting the quality of the deposited layer and provides an in-depth analysis of the electrodeposition mechanism.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Xianda Jia, Yu Zhang, Xinran Dong, Zhiyong Wang
Summary: Gear transmission is crucial in mechanical engineering, but as gear systems advance, surface failures such as pitting and wear become more common. This paper proposes a novel method using laser micro-nano texture technology to improve lubrication conditions and wear resistance of gear surfaces. The results show that this method significantly enhances the lipophilic properties of gears, reduces wear depth and friction coefficient, and extends the service life of gears.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Nur Afifah Ahmad Nazri, Nur Hidayah Azeman, Mohd Hafiz Abu Bakar, Nadhratun Naiim Mobarak, Athiyah Sakinah Masran, Ahmad Rifqi Md Zain, Mohd Adzir Mahdi, Adhitya Gandaryus Saputro, Triati Dewi Kencana Wung, Yunhan Luo, Ahmad Ashrif A. Bakar
Summary: This report introduces a microfiber chlorophyll sensor based on polymeric amine functionalized carbon quantum dots, which can detect chlorophyll with high sensitivity and low detection limit. The sensor utilizes surface plasmon resonance technique and shows promising potential for real-time environmental monitoring applications.
OPTICS AND LASER TECHNOLOGY
(2024)
Review
Optics
Mehran Ghasempour-Mouziraji, Joana Lagarinhos, Daniel Afonso, Ricardo Alves de Sousa
Summary: This paper reviews the application of metal powder materials and process parameters in laser additive manufacturing, with a focus on Laser Metal Deposition. It provides information on commonly used machines and analyzes reported studies to determine the recommended range of processing parameters for manufacturers to select the best options.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Haijun Yu, Zhiyan Zhang, Shusen Zhao, Hongyang Wang, Han Liang, Zhiyong Dong, Xuechun Lin
Summary: In this study, a dynamics model of polymer laser ablation was established through numerical simulation. The accuracy of the model was validated by experimental results, making it significant for the investigation of dynamic behaviors of laser ablation processes.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Evelina Bibikova, Nazar Al-wassiti, Nataliya Kundikova
Summary: Light beams possess three types of angular momentum, namely spin angular momentum, extrinsic orbital angular momentum, and intrinsic orbital angular momentum. The interaction between these momenta leads to the spin-orbit interaction of light and topological effects. This study predicts a new topological effect resulting from the influence of extrinsic orbital angular momentum on spin angular momentum in converging asymmetrical light beams. It manifests as the transformation of linear polarized light into elliptically polarized light when an asymmetrical beam passes through the left or right half of the focal plane. The measured value of the topological circular amplitude anisotropy R was found to be R = +/- (0.60 +/- 0.08) x 10(-3). This new effect contributes to our understanding of light and has potential applications in developing sensors in optics.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Zifan Wang, Tianfeng Zhou, Qian Yu, Zihao Zeng, Xibin Wang, Junjian Hu, Jiyong Zeng
Summary: Fast-axis collimation (FAC) lens arrays are crucial in laser systems, and their precision can be improved through the development of an optical collimation system and the use of thermal compensation to correct for non-uniform thermal expansion.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Qian He, Li Pei, Jianshuai Wang, Jingjing Zheng, Tigang Ning, Jing Li
Summary: This paper proposes a 3D refractive index profile visualization method to demonstrate mode activation and evolution in fiber fusion splicing. The method is validated through experimental results and provides support for various fiber splicing operations and mode coupling modulation.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Yuan Zhang, Zhiwei Dong, Li Song, Sheng Zhang, Yong Zhang, Yanyan Deng, Zeming Zhang, Shuo Liu, Yulei Wang, Zhiwei Lu, Yuanqin Xia
Summary: This paper proposes a strategy to optimize the femtosecond laser filamentation system, achieving highly sensitive detection of weak signals. Experimental results demonstrate that the optimized system shows great performance in detecting weak signals and tracking carrier evolution.
OPTICS AND LASER TECHNOLOGY
(2024)
