Changjun Chen | Experimental methods | Best Researcher Award

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Prof. Changjun Chen | Experimental methods | Best Researcher Award

Director at Soochow University | China

Prof. Changjun Chen is a renowned expert in laser materials processing and holds a professorship at the Laser Processing Research Center, School of Mechanical and Electric Engineering, Soochow University, Suzhou, China. He is also the Secretary General of both the Laser Industry Alliance of G60 S&T Innovation Valley of Yangtze River and the Jiangsu Province Laser Innovation. Prof. Chen’s research spans a variety of cutting-edge applications, particularly in laser welding, laser metal deposition, laser-assisted material removal, and surface modification. He has significantly contributed to the development of new techniques in these areas that are pivotal for industrial applications, especially in aerospace, automotive, and energy sectors.

👨‍🎓Profile

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📚 Early Academic Pursuits

Prof. Chen began his academic journey by obtaining his Bachelor’s degree (BE) in 2000 from Northeastern University in Shenyang, China. He further advanced his education by earning a Ph.D. in 2007 from the Institute of Metal Research, Chinese Academy of Sciences, specializing in materials science. His early academic pursuits laid a strong foundation for his later contributions to laser processing and materials science.

💼 Professional Endeavors

Prof. Chen’s professional career began in 2007 when he joined Wuhan University of Science and Technology, where he served as an associate professor until 2011. His career took a major leap when he joined Soochow University in 2011, attaining the title of Professor. His academic journey also includes a significant research visit to Columbia University in 2013-2014, supported by the China Scholarship Council. This international exposure has allowed him to collaborate and interact with leading researchers across the globe.

🔬 Contributions and Research Focus

Prof. Chen’s research is focused on laser materials processing and its industrial applications. His group explores a range of cutting-edge topics, including:

  • Laser Metal Deposition: Particularly for superalloys and high-strength steels like high-speed steel, which are essential for both remanufacturing and manufacturing processes.

  • Laser-Forming of Metallic Foam: For applications in aerospace and automotive industries, focusing on shock absorption, weight reduction, and sustainability.

  • Laser Cladding for Gas Turbines: Optimizing superalloys for use in extreme environments.

  • Laser Welding/Sealing of Glass to Metal/Alloy: A highly specialized area of industrial processing.

His group’s novel experimental setups, combined with materials characterization and theoretical/numerical models, aim to improve quality and productivity in manufacturing processes.

🌍 Impact and Influence

Prof. Chen’s work has had a profound impact on both academia and industry. His research in laser processing has directly contributed to increased productivity, improved quality, and enhanced efficiency in manufacturing and remanufacturing industries. Prof. Chen’s involvement in laser innovation not only benefits industrial applications but also supports sustainable practices, notably through the development of metal foams for weight reduction in transportation and aerospace sectors.

📑 Academic Cites

With over 200 peer-reviewed papers published, Prof. Chen’s work is highly regarded in the scientific community. His contributions have earned him significant recognition, with over 100 of these papers cited in SCI-indexed journals. His publications reflect his deep expertise in materials science and laser processing technology.

🛠️ Research Skills

Prof. Chen’s research is characterized by his innovative approach to laser material interactions, which involves a balance of theoretical investigation and hands-on experimentation. His skills in materials characterization, numerical simulations, and process optimization have enabled him to make significant advancements in laser welding, cladding, and deposition processes. Furthermore, his expertise in foam shaping via laser forming has contributed to the development of sustainable manufacturing techniques for industries like automotive and aerospace.

🏅 Teaching Experience

In addition to his research, Prof. Chen has a long history of mentoring students and professionals in the field of materials science and laser processing. As a professor at Soochow University, he has played a pivotal role in shaping the careers of countless graduate and post-graduate students. His teaching style emphasizes the integration of theoretical knowledge with practical application, ensuring that his students are well-prepared for careers in both academia and industry.

🌱 Legacy and Future Contributions

Prof. Chen’s work has laid a solid foundation for future advancements in laser processing technologies. His contributions to sustainable manufacturing through laser-assisted foam shaping and metal deposition are expected to shape the future of the aerospace, automotive, and energy industries. His research group continues to push the boundaries of what is possible in laser-based manufacturing, and his global collaborations ensure that his influence will continue to grow, benefiting industries worldwide.

Publications Top Notes

Effect of composite adding Ta and Mo on microstructure and properties of W-Mo-Cr high-speed steel prepared by laser metal deposition

  • Authors: M. Zhang, C. Chen (Changjun)
    Journal: Applied Physics A: Materials Science and Processing
    Year: 2025

The influence of anodization on laser transmission welding between high borosilicate glass and TC4 titanium alloy

  • Authors: L. Li (Lei), C. Chen (Changjun), C. Li (Chunlei), C. Tian (Chen), W. Zhang (Wei)
    Journal: Optics and Laser Technology
    Year: 2025

Effect of High-Temperature Oxidation on Laser Transmission Welding of High Borosilicate Glass and TC4 Titanium Alloy

  • Authors: M. Xu (Mengxuan), C. Chen (Changjun), J. Shao (Jiaqi), M. Zhang (Min), W. Zhang (Wei)
    Journal: Journal of Materials Engineering and Performance
    Year: 2025

Comparative Study of the Effects of Different Surface States During the Laser Sealing of 304 Steel/High-Alumina Glass

  • Authors: C. Chen (Changjun), B. Bao (Bei), J. Shao (Jiaqi), M. Zhang (Min), H. Liu (Haodong)
    Journal: Coatings
    Year: 2025

Effects of Different Surface Treatment Methods on Laser Welding of Aluminum Alloy and Glass

  • Authors: C. Chen (Changjun), L. Li (Lei), M. Zhang (Min), W. Zhang (Wei)
    Journal: Coatings
    Year: 2024

 

Ugur Yahsi | Experimental methods | Best Researcher Award

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Prof. Ugur Yahsi | Experimental methods | Best Researcher Award

Head of the General Physics Department | Marmara University | Turkey

Prof. Dr. Uğur Yahşi is a Full Professor in the Physics Department at Marmara University, Istanbul, Turkey. With an academic background spanning Physics at institutions such as Istanbul University (BSc), University of Wisconsin (MSc), and Case Western Reserve University (PhD), he has made notable contributions to the scientific community in both research and education.

👨‍🎓Profile

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Early Academic Pursuits 📚

Prof. Dr. Yahşi’s academic journey began with a BSc in Physics from Istanbul University in 1983. He pursued an MSc at the University of Wisconsin from 1987-1988, followed by a PhD at Case Western Reserve University, completing his studies in 1994. His early research laid the foundation for his future work in material science and applied physics.

Professional Endeavors 💼

Prof. Yahşi’s professional career has been extensive, with a continuous academic presence at Marmara University, where he has held positions from Assistant Professor to Full Professor since 1996. Additionally, he has served as a Visiting Scientist at the University of Missouri-Kansas City and contributed significantly to various administrative roles within the university, such as Senator and Director of the Institute of Pure and Applied Sciences.

Contributions and Research Focus 🔬

Prof. Dr. Yahşi’s research is at the forefront of material science, particularly in nanomaterials, macromolecular physics, and defect structures. His research spans across multiple topics, including vacancy structures, dendrimers, polymer-ion interactions, and nanometric defects in materials. He is a leading figure in applying positron annihilation spectroscopy and other advanced techniques to study the electronic properties of materials, advancing nanotechnology and material engineering.

Impact and Influence 🌍

Prof. Yahşi’s impact extends beyond his research, as he has shaped the academic environment at Marmara University. He has mentored numerous students through undergraduate, master’s, and doctoral research projects. His leadership roles have fostered growth in the Physics Department and research programs, contributing to collaborations with other institutions and research organizations globally.

Academic Cites 📑

Prof. Dr. Yahşi has been extensively cited in scientific journals for his work on positron annihilation and material defect structures. His influence can be seen in the academic advancements in polymer science, nanotechnology, and material characterization techniques. The funding from projects such as TÜBİTAK and Marmara University underscores the significance of his work in advancing scientific discovery.

Research Skills 🔧

Prof. Yahşi possesses a diverse set of research skills, including expertise in positron annihilation spectroscopy, experimental physics, and materials characterization. He is skilled in various computational tools such as Fortran, Mathematica, and MatLab, enabling him to model complex physical systems and conduct numerical simulations in support of his theoretical work.

Teaching Experience 🎓

Prof. Yahşi’s teaching spans over decades, with experience in courses ranging from Advanced Classical Mechanics to Computer Programming in Fortran. His commitment to student development is evident through his role in shaping curriculum and teaching courses in Technical English, Solid-State Physics, and Numerical Methods. He has also contributed significantly to the translation and localization of key texts in Physics, ensuring that students have access to high-quality educational resources.

Awards and Honors 🏆

Prof. Yahşi has been the recipient of numerous fellowships and awards, such as the Turkish Educational Ministry Fellowship for his graduate studies. His work has earned research grants from prominent Turkish organizations like TÜBİTAK, demonstrating his recognized contributions to scientific progress. He continues to receive support for innovative projects, including the BİDEB Mentorship Support Program and various Marmara University projects.

Legacy and Future Contributions 🌱

Prof. Dr. Uğur Yahşi’s legacy lies in his commitment to advancing physics education and research, particularly in material science and nanotechnology. His ongoing projects, such as the investigation of flash sintering in doped ZnO structures and polymer materials, are paving the way for future breakthroughs. With continued administrative roles and research leadership, Prof. Yahşi is poised to make lasting contributions to both academic knowledge and scientific innovation.

Publications Top Notes

Free volume impact on ionic conductivity of PVdF/GO/PVP solid polymer electrolytes via positron annihilation approach

  • Authors: M. Yilmazoğlu, H. Okkay, U. Abacı, C. Tav, U. Yahşi
    Journal: Radiation Physics and Chemistry, 2025

The Influence of Defects on the Structural, Optical, and Antibacterial Properties of Cr/Cu Co-Doped ZnO Nanoparticles

  • Authors: L. Arda, Z. Ra’ad, S. Veziroğlu, C. Tav, U. Yahşi
    Journal: Journal of Molecular Structure, 2025

Correlation of proton conductivity and free volume in sulfonated polyether ether ketone electrolytes: A positron annihilation lifetime spectroscopy study

  • Authors: M. Lahmuni, M. Yilmazoğlu, U. Abacı, C. Tav, U. Yahşi
    Journal: Radiation Physics and Chemistry, 2025

A novel approach for the atomic scale characterization of Li-ion battery components probed by positron annihilation lifetime spectroscopy

  • Authors: R. Bakar, S. Koç, A. Yumak Yahşi, C. Tav, U. Yahşi
    Journal: Materials Research Bulletin, 2024

Free-volume analysis of the structural and dielectric properties of PMMA/TeO2 composites via positron annihilation lifetime spectroscopy

  • Authors: S. Kuzeci, E. Özcan, A.U. Kaya, R. Bakar, C. Tav, U. Yahşi, K. Esmer
    Journal: Journal of Alloys and Compounds, 2024

 

Yidong Zhang | Experimental methods | Best Researcher Award

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Dr. Yidong Zhang | Experimental methods | Best Researcher Award

Beijing University of Posts and Telecommunications | China

Yidong Zhang is an emerging scientist specializing in the growth of silicon-based III-V materials and their applications in the high-quality growth of GaAs heteroepitaxial layers. Holding a doctoral degree awarded at Beijing University of Posts and Telecommunications (BUPT) in 2024, he is currently a postdoctoral fellow at the same institution. His research focuses on cutting-edge quantum mechanics and material science, aiming to advance semiconductor technologies through innovative approaches in material growth.

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📚 Early Academic Pursuits

Yidong Zhang’s academic journey began with a keen interest in the intersection of physics and material science, which led him to pursue advanced studies at BUPT. During his doctoral studies, Zhang delved into topics related to material fabrication and quantum mechanics, particularly focusing on heteroepitaxy and substrate preparation for GaAs growth on silicon wafers. His passion for cutting-edge research and technical innovation drove him to explore this challenging area of material science.

💼 Professional Endeavors

As a postdoctoral fellow at BUPT, Yidong Zhang is continuing his work in the field of semiconductor material growth. His professional endeavors are centered on addressing complex challenges in the heteroepitaxial growth of GaAs layers, with a particular emphasis on developing sub-nano streaky surfaces on Si (001) substrates. This innovative research has the potential to significantly improve the quality and performance of III-V semiconductor materials, which are vital for advanced electronics and optoelectronics.

🔬 Contributions and Research Focus

Zhang’s primary research focus is on the fabrication and application of high-quality GaAs heteroepitaxial layers, with an emphasis on substrate surface preparation. The work on the Si (001) substrate with sub-nano streaky surfaces is crucial as it enables better material integration and growth precision, leading to enhanced performance in semiconductor devices. His contributions in the field of silicon-based III-V material growth are poised to advance semiconductor technology, especially in areas such as high-speed electronics and optical communications.

🌍 Impact and Influence

Yidong Zhang’s research is positioned to make a significant impact in the semiconductor industry. His innovative work in substrate preparation and material growth techniques has the potential to influence high-performance electronics, solar cells, LEDs, and laser technologies. Zhang’s approach is likely to transform industry standards by offering a more cost-effective and precise method for growing high-quality semiconductor materials. His work could ultimately enable the development of next-generation devices with enhanced efficiency and performance.

📑 Academic Cites

While Yidong Zhang’s publication record is still emerging, his research has been well-received in the academic community, with growing interest in his work on Si (001) substrate preparation and GaAs heteroepitaxy. As his body of work expands, the citations of his publications are expected to increase, further cementing his position as a leading researcher in the field of material science and semiconductor technology.

🛠️ Research Skills

Dr. Yidong Zhang demonstrates a strong command of several research skills, including experimental design, material characterization, and quantum mechanical simulations. His expertise in substrate preparation techniques, coupled with his knowledge of semiconductor growth processes, equips him with the necessary tools to tackle complex challenges in the field of heteroepitaxy. He has a high level of proficiency in nano-scale fabrication and materials analysis, making him a valuable asset in any research team focused on advanced material science.

👨‍🏫 Teaching Experience

As a postdoctoral fellow, Zhang has had opportunities to mentor graduate students and research assistants at BUPT. His role involves guiding students through complex experimental setups, helping them develop critical research skills, and encouraging a hands-on approach to material science. His commitment to education and knowledge sharing ensures the continued growth of the next generation of researchers in quantum mechanics and material fabrication.

🏅 Awards and Honors

Yidong Zhang’s early academic career has already been marked by several academic achievements, including the award of a Doctoral degree in 2024. While he is at the beginning of his postdoctoral journey, Zhang is a strong contender for recognition in the research community, particularly through awards like the Best Researcher Award. His work is likely to attract further accolades as it continues to push the boundaries of material science and semiconductor technology.

🌱 Legacy and Future Contributions

As Yidong Zhang progresses in his career, his legacy in the field of semiconductor research will likely be defined by his contributions to high-quality material growth techniques and the advancement of silicon-based III-V heteroepitaxy. His future contributions could lead to game-changing advancements in electronics and optoelectronics, as his work has the potential to revolutionize semiconductor integration. Looking ahead, Zhang’s research will continue to influence both academia and industry, laying the groundwork for next-generation technologies.

Publications Top Notes

The Si (001) substrate with sub-nano streaky surface: Preparation and its application to high-quality growth of GaAs heteroepitaxial-layer

  • Authors: Yidong Zhang, Jian Li, Xiaomin Ren, Chuanchuan Li, Xin Wei
    Journal: Applied Surface Science
    Year: 2024

InAs/GaAs quantum-dot lasers grown on on-axis Si (001) without dislocation filter layers

  • Authors: Yongli Wang, Bojie Ma, Jian Li, Xin Wei
    Journal: Optics Express
    Year: January 2023

Rapid and facile characterization of dislocations in cross-sectional GaAs/Si films using electron channeling contrast imaging

  • Authors: Chen Jiang, Hao Liu, Jian Li, Qi Wang
    Journal: Conference Paper
    Year: January 2023

Demonstration of room-temperature continuous-wave operation of InGaAs/AlGaAs quantum well lasers directly grown on on-axis silicon (001)

  • Authors: Chen Jiang, Hao Liu, Jun Wang, Yongqing Huang
    Journal: Applied Physics Letters
    Year: August 2022

 

 

Yue Song | Experimental methods | Best Researcher Award

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Assoc. Prof. Dr. Yue Song | Experimental methods | Best Researcher Award

Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences | China

Dr. Song Yue is an Associate Researcher at the Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, specializing in high-power semiconductor lasers and the failure mechanisms of these lasers. With a PhD from the University of Chinese Academy of Sciences, she has made significant contributions to the field, including proposing new models on defect evolution and indium atom migration in semiconductor materials.

👨‍🎓Profile

Scopus

Early Academic Pursuits 📚

Dr. Song completed her PhD at the University of Chinese Academy of Sciences, where she gained deep knowledge in semiconductor lasers and the mechanisms affecting their efficiency and longevity. Her academic path was characterized by an early focus on understanding the complex behaviors of semiconductor materials under various operational conditions. Her research foundation laid the groundwork for her future innovations.

Professional Endeavors 💼

Dr. Song is an Associate Researcher at the Changchun Institute of Optics, Fine Mechanics and Physics. In this role, she has led numerous research projects, most notably focusing on high-power semiconductor lasers. She has been an integral part of key national research initiatives, including projects funded by the National Natural Science Foundation of China and the National Key Research and Development Program of China. These efforts have not only advanced her field but also brought significant funding and resources into her research domain.

Contributions and Research Focus 🔬

Dr. Song’s research is primarily focused on the development and efficiency enhancement of semiconductor lasers. Her contributions include the thermal defect evolution models for quantum wells in AlGaInAs and introducing a strained compensation layer in superlattice structures. These innovations are aimed at improving the performance and reliability of gain chips, which are central to high-power laser technology. She also proposed a novel approach to understanding indium atom migration in semiconductor materials using the dark state model, shedding light on failure mechanisms that affect the lifespan and stability of these lasers.

Impact and Influence 🌍

Dr. Song’s research has had a profound impact on the semiconductor laser industry, particularly by improving the efficiency and reliability of gain chips. Her findings are widely cited, and her work on thermal effects and indium atom migration has set new standards in the industry. Additionally, her involvement in developing group standards for the China Association of Automobile Manufacturers has led to practical applications of her research in the automotive sector.

Academic Cites 📑

Dr. Song has authored over 30 academic papers, including 14 SCI core papers as the first or corresponding author. Her work is frequently cited in the scientific community, particularly in the domains of semiconductor lasers and optical materials. She has also coauthored a monograph, expanding the breadth of her influence in the academic world.

Research Skills 🔧

Dr. Song is skilled in the theoretical modeling of semiconductor materials and laser systems. Her ability to develop defect models, atom migration theories, and structure enhancements demonstrates her expertise in both computational and experimental research. Her work is deeply rooted in quantum mechanics, material science, and optical engineering, making her a well-rounded researcher in the field.

Awards and Honors 🏅

Dr. Song has received multiple accolades recognizing her contributions, including:

  • High-level D Talents of Jilin Province
  • Dawn Talent title
  • Membership in the Changbai Mountain Leading Team
  • Changchun Institute of Optics Excellent Achievement Award
  • Institute’s Special Youth Reward Plan C-level award
  • Institute’s Innovation Practice Project Special Award
  • Recognition in the Wiley China Excellent Author Program

These honors reflect her outstanding contributions to both her field of research and the broader scientific community.

Legacy and Future Contributions 🌟

Dr. Song is poised to continue making groundbreaking contributions to semiconductor laser technology. Her work already impacts both academic research and industry applications, particularly in fields requiring high-efficiency lasers such as telecommunications, automotive technologies, and defense systems. As her research evolves, she is likely to contribute to advancements in quantum computing and photonic devices, leaving a lasting legacy in the world of optics and laser technology.

Publications Top Notes

High-power and ultra-wide-tunable fiber-type external-cavity diode lasers

  • Authors: Q. Cui, Y. Lei, C. Yang, L. Qin, L. Wang
    Journal: Optics and Laser Technology
    Year: 2025

Integrated Light Sources Based on Micro-Ring Resonators for Chip-Based LiDAR

  • Authors: L. Huang, C. Yang, L. Liang, Y. Ding, L. Wang
    Journal: Laser and Photonics Reviews
    Year: 2025

Recent Advances in Tunable External Cavity Diode Lasers

  • Authors: Y. Wang, Y. Song
    Journal: Applied Sciences (Switzerland)
    Year: 2025

Noise characteristics of semiconductor lasers with narrow linewidth

  • Authors: H. Wang, Y. Lei, Q. Cui, L. Qin, L. Wang
    Journal: Heliyon
    Year: 2024