Research Summary
Over the past decade, I have maintained a dual focus on academia and industry, orienting my research toward integrated solutions rather than traditional, isolated computing silos. For my PhD, I am merging Docker, Cloud Computing, Systems Administration, and Artificial Intelligence to develop blended, innovative frameworks that address complex challenges within both the computing domain and modern industry.

Impression of SU and Japan
Saitama University stands out as a premier institution for interdisciplinary research, particularly through the ComNet Lab, which fosters a unique synergy between advanced networking and intelligent systems. My decision was driven by the university's commitment to "Multicultural Co-learning" and its strategic location within the Greater Tokyo Area, providing a perfect bridge between rigorous academic inquiry and Japan's cutting-edge industrial landscape.
Japan offers an unparalleled environment for a researcher in System Administration and AI, balancing a deep respect for technological heritage with a relentless drive toward Society 5.0. The Japanese philosophy of precision and "Monozukuri" aligns with my goal of developing resilient, high-performance Docker environments. This cultural emphasis on harmony and innovation makes it the ideal setting to explore how LLMs can enhance complex human-machine infrastructures.

Research Summary
My research field is Mechanical Engineering, focusing on the intersection of solid mechanics and applied artificial intelligence. Under the supervision of Professor Tomohisa Kojima, my work investigates the application of Physics-Informed Neural Networks (PINNs). Specifically, I focus on the diagnosis, stability, and robust formulations of PINNs for thin structural elements for high-performance metastructure design. My goal is to integrate machine learning with continuum mechanics to enhance computational analysis and engineering design.

Impression of SU and Japan
Saitama University provides a great atmosphere that makes it very easy to live and study. The cost of living is affordable, yet the campus remains conveniently close to Tokyo. This peaceful environment allows me to fully concentrate on my research. One of the standout advantages here is the exceptional, empathetic support system for international students. The staff and student tutor are incredibly helpful, especially with Japanese paperwork. Saitama University staff provides a clear, well-organized, step-by-step system. Moreover, living in Japan has been an amazing experience, highlighted by its beautiful culture and exceptionally safe community.

Research Summary
My doctoral research focuses on a phenomenon called “bursting on the top”, a small explosion that occurs when a bubble ruptures at a free surface and generates aerosols. This process is relevant to daily life, such as oil splashing during cooking, where fine droplets may become airborne and affect respiratory health. I investigate this using a controlled spark bubble system, where bubbles are generated via electrical discharge between submerged electrodes. I also incorporate acoustic analysis to characterize frequency signatures during bubble dynamics. High-speed imaging enables quantitative analysis of thin film rupture, surface deformation, and aerosol formation under controlled, repeatable conditions.

Impression of SU and Japan
My decision to pursue a doctoral degree at Saitama University stems from my strong interest in fluid dynamics, particularly flow visualization using high-speed cameras. Since my master’s study, I have focused on fluid flow phenomena, despite limited access to such equipment. These constraints made me realize the importance of visualization in understanding fast and complex phenomena. Learning that Photron is based in Japan further strengthened my motivation. I then sought universities with strong research in experimental fluid dynamics, including two-phase flow and turbomachinery, and Saitama University proved to be the best fit. Moreover, the supportive supervisor and collaborative lab environment make it an ideal place for my academic growth.

Research Summary
My research focuses on Artificial Intelligence in Cybersecurity, particularly on generating adversarial network traffic to evaluate and improve the robustness of Network Intrusion Detection Systems (NIDS). I am currently working on diffusion-based approaches for realistic traffic generation, aiming to simulate advanced cyber-attacks that can bypass traditional detection mechanisms. The objective of this research is to enhance the security and reliability of modern networks by developing intelligent testing frameworks. Through this research, I aim to contribute to the advancement of secure communication systems and provide practical solutions for real-world cybersecurity challenges.

Impression of SU and Japan
I chose Saitama University because of its strong reputation in research and its focus on innovation in communication networks and Artificial Intelligence. The Communication Networks Laboratory (ComNets Lab.) particularly attracted me due to its interdisciplinary research approach, combining network technology, security, and generative AI to address real-world challenges. Under the supervision of Professor Kohei Watabe, I have the opportunity to explore advanced research topics and develop practical solutions. Living in Japan has been a valuable experience. Its discipline, safety, and technological advancement provide an ideal environment for study and personal growth. I believe this experience will shape my future career in cybersecurity and research.

Research Summary
My research focuses on the spread of the invasive beetle Aromia bungii, known in Japan as “クビアカツヤカミキリ” or “kubi-aka-kamikiri”. This species poses a major threat to the Rosaceae family, particularly cherry blossom trees. First detected in the port area of Aichi Prefecture in 2012, it likely arrived through wood transport or nursery imports. Despite its economic impact in Japan, Germany, and Italy, limited studies have examined its local-scale dispersal. My research integrates key geographical variables into an ecological model to simulate its spread using a deep learning approach. The findings will aid in pest management strategies, helping to predict and mitigate future outbreaks effectively.

Impression of SU and Japan
I first came to Saitama University in October 2022, after Japan reopened its borders. While visiting my brother in Chiba, I contacted the university's Foreign Office and submitted a proposal to a potential supervisor with Ms. Inomori's help. I remember the beautiful autumn scenery around the university, feeling relieved (安心 or anshin). I believed it was the perfect place for my PhD journey, despite the challenges ahead. After living in Europe for two years, I wanted to experience life in an Asian country rich in culture and tradition. Japan was ideal. Hanami, a cultural tradition, reflects life's fleeting nature, as expressed in the saying 人間の一生は桜のように儚い (ningen no isshō wa sakura no yō ni hakanai). This phrase reminds me that life is precious. I am committed to preserving hanami's cultural significance for future generations through my research.

Research Summary
My research is the weight perception in Virtual Reality. The research aims to know about different vibrations for weight perception in Virtual Reality. The reason for weight perception isn’t perceived by looking, touching or lifting objects. Vibration can get weight perception but using only vibration may not be enough for perception, so I used Pseudo Haptic technique combined with vibration for enhancing to the weight perception. However, I used the two techniques but in the real world I would like to know about the real vibrate when water dripping in the bottle for applying to test in Virtual Reality.

Impression of SU and Japan
The main reason I choose to study at Saitama University because in department of science and engineering have become one of the best the department in university at Japan. My supervisor is supportive, helpful, kind and good management for consulting students. However, in university have top class professors on research and have facilities in the laboratory or new devices for used in research. In the location of Saitama university are peaceful, beautiful and good weather for foreign student in Southeast Asia.Saitama university is the best university of research and academic to study and develop research in the world. Finally, Japan is the best weather, transportation, technology, the best of anime and J-Rock song.

Research Subject
Image Quality Enhancement: Existing Limitations & Scopes for Improvement

Research Summary
Image enhancement (IE) has been prominently utilized in a variety of disciplines, including medical, underwater, and satellite imaging systems, due to the greater clarity of image features. Existing IE methods usually suffer from various limitations. The main purpose of this research is to analyze the limitations deeply and provide solutions to the problems by introducing novel techniques, especially using fuzzy mathematics and logic.

Impression of SU and Japan
Saitama University has a beautiful green campus in Japan. I am very happy to have a professor like Dr. Tetsuya SHIMAMURA at this university. The research facilities of my lab are awesome. On March 5, 2025, I joined the 2025 7th International Conference on Image, Video and Signal Processing at Meiji University (Ikuta campus), Kawasaki, Kanagawa, Japan. The hospitalities I received on my journey from Saitama University to Meiji University and at the conference dinner will always be fresh in my memory. Maybe these hospitalities can only be expected in Japan.

Research Subject
Coordination between the Scheduler and Dynamic Voltage and Frequency Scaling (DVFS) in the Autoware Kernel

Research Summary
This research focuses on optimizing energy efficiency in the Autoware Kernel, a real-time operating system supporting DAG scheduling. The goal is to develop novel techniques for coordinating the scheduler with DVFS, ensuring real-time performance while reducing power consumption. Key objectives include designing DAG-aware DVFS algorithms, implementing slack-time utilization strategies, and integrating thermal awareness. The research aims to enhance energy efficiency in autonomous vehicle systems without compromising real-time guarantees, contributing to both academic knowledge and practical applications in the automotive industry.

Impression of SU and Japan
Saitama University offers a world-class research environment, its strong emphasis on innovation and academic excellence aligns perfectly with my research aspirations. The university provides exceptional facilities, including a comprehensive library, advanced laboratories, and resources tailored for international students. I chose Saitama University because of its reputation for cutting-edge research and its welcoming environment for global scholars. Japan’s rich cultural heritage, commitment to hard work, and technological leadership make it an ideal setting for academic growth. I am honored to be a part of the Azumi Lab under the guidance of Professor Takuya Azumi, who is extremely supportive and encouraging. His mentorship greatly motivates me to pursue impactful research.

Research Subject
III-V semiconductor-based ultraviolet (UV) LEDs and their related technologies

Research Summary
III-V semiconductor-based ultraviolet (UV) LEDs are key technology for applications such as sterilization, water purification, medical treatment, and sensing. These LEDs are made from III-V compound semiconductors, particularly aluminum gallium nitride (AlGaN), gallium nitride (GaN), and indium gallium nitride (InGaN), which are suitable for UV emission due to their wide bandgap. It can emit in the UV-A (320–400 nm), UV-B (280–320 nm), and UV-C (200–280 nm) ranges by adjusting the composition of AlGaN and related alloys. Compared to traditional mercury-based UV lamps, UV LEDs consume less power and have a longer operational lifetime. Unlike mercury lamps, UV LEDs are mercury-free and environmentally safer. III-V materials allow for miniaturization, making UV LEDs suitable for portable and embedded applications.

Impression of SU and Japan
Studying abroad in Japan has been an enriching experience, both academically and culturally. I fortunately got the opportunity to join the Quantum Optodevice Laboratory under Prof. Hiroyuki Yaguchi at Saitama University. He refers me to work as a student trainee in Riken a renowned institute of Japan under the Prof. Hideki Hirayama. The opportunity to learn from distinguished professors, engage in advanced research, and immerse myself in Japan’s unique culture has broadened my perspective and deepened my appreciation for global education. Joining the physics department at Saitama University in Japan marks the beginning of an exciting journey of exploration and discovery. I look forward to engaging in cutting-edge research, collaborating with esteemed professors, and immersing myself in Japan’s rich academic culture. Physics has always been a gateway to understanding the universe, and joining Saitama University in Japan allows me to dive deeper into this fascinating field. I am thrilled to learn, explore, and contribute to scientific advancements in an environment known for its excellence. The professors in the physics department at Saitama University are incredibly knowledgeable and supportive. Their guidance and expertise create an inspiring learning environment, fostering both academic growth and innovative research. I am grateful to be part of Saitama University physics department, where the professors are not only experts in their fields but also dedicated mentors. Their encouragement and insightful teaching make learning an enriching experience. I will make sure that my stay in Japan enhance the academic and culture linkage between Pakistan and Japan, may stay act as a gate way for students to come to Japan.

My Research Journey and Impression of Saitama University
Being a part of Saitama University has been an incredible experience, both academically and personally. The university provides a dynamic research environment where innovation and collaboration thrive. Under the esteemed guidance of Professor Shuhei Yagi, I am exploring Innovative Approaches for Effective Light Absorption and Distribution in Multi-Junction Tandem Solar Cells—a field that holds immense potential for the future of renewable energy. The well-equipped research facilities and state-of-the-art laboratories have greatly supported my work, making each day an exciting step toward discovery.
Beyond the lab, the warmth and hospitality of the university staff, faculty members, and fellow researchers have made my transition to Japan seamless. The I-House management team has played a crucial role in ensuring that international students feel comfortable and at home. Japan itself has been an inspiring place to live and study. The rich cultural heritage, combined with the discipline and kindness of the people, has left a profound impact on me. From the well-organized academic system to the respect for tradition and innovation, every aspect of life here offers a unique learning experience. I consider myself fortunate to be part of such a vibrant and forward-thinking academic community. To all new students joining Saitama University, I encourage you to embrace this journey with curiosity and enthusiasm. This experience will not only shape your academic path but also enrich your perspective on the world.
Wishing all future scholars, the very best in their endeavors!

Research Subject
Photocurrent Enhancement in Ion-Implanted GaPN Intermediate Band Solar Cells

Research Summary
The development of high-efficiency solar cells is crucial for improving renewable energy conversion and addressing global energy demands. Intermediate band solar cells (IBSCs) present a promising approach to surpassing the Shockley-Queisser efficiency limit by enabling the absorption of sub-bandgap photons. This capability enhances photocurrent generation, allowing solar cells to utilize a wider spectrum of sunlight. GaPN (Gallium Phosphide Nitride) is a highly suitable candidate for IBSCs due to its tunable bandgap, which allows for the optimization of energy absorption and emission properties. Additionally, GaPN’s compatibility with existing semiconductor technologies makes it a practical choice for advanced photovoltaic applications.
Ion implantation offers a significant advantage as an alternative fabrication technique for introducing intermediate energy states within the GaPN structure. Unlike traditional methods, ion implantation allows for precise control over dopant distribution, which can be tailored to enhance the formation of the intermediate band. Our recent studies have demonstrated that ion-implanted GaPN IBSCs exhibit improved photocurrent generation, effectively utilizing a broader portion of the solar spectrum, which enhances the overall efficiency of the solar cell.
This research highlights the potential of ion-implanted GaPN IBSCs as a pathway toward the next generation of high-efficiency photovoltaics. The ability to enhance solar energy conversion through intermediate band absorption represents a significant step forward in advancing sustainable energy technologies for the future.
Impression of SU and Japan
Saitama University, Japan. Pursuing my PhD here has been transformative, providing me with an exceptional academic environment and opening doors for research in renewable energy. I am deeply grateful to the Japanese government for the MEXT scholarship, which has allowed me to study at one of Japan’s esteemed institutions and contribute to solar energy research. Saitama University has played a pivotal role in my academic growth, offering world-class facilities, cutting-edge laboratories, and a supportive faculty. The collaborative atmosphere has enabled me to refine my ideas and expand my knowledge through discussions with professors, researchers, and fellow students. As a researcher from Bangladesh, I am committed to advancing renewable energy solutions that will benefit both the global community and my home country. I sincerely thank Japan and Saitama University for this invaluable opportunity.

Research Subject
Performance analysis and optimization of InSb based Thermo-Radiative Cell for Waste Heat Recovery

Impression of SU and Japan
It has been both a pleasure and an honor for me to be affiliated with Saitama University in Japan. My supervisor and departmental colleagues are extremely helpful and cooperative. The research laboratory is equipped with state-of-the-art instruments, which have consistently facilitated my research endeavors. Furthermore, I wish to express my appreciation for the attentiveness and care demonstrated by the staff and the I-house management team. Their commitment to addressing our concerns created an environment that felt akin to being in my home country. Japan, with its rich traditions and culture, has provided a unique backdrop for my academic pursuits. The inherent friendliness and disciplined nature of the people have left a lasting impression on me, leading me to regard the Japanese as among the most amiable individuals in the world. I anticipate that the valuable traditions and cultural aspects of Japan will continue to contribute positively to my daily life. I consider myself fortunate to be immersed in such an inspiring and friendly environment as I pursue my research activities at Saitama University. To all new students embarking on their journey at Saitama University and in Japan, I extend my heartfelt wishes for the best of luck. May this experience become the most enriching chapter of your lives.

Research Subject
Green Hydrogen Production through Advanced Catalysis and Innovative Carbon Capture Techniques incorporating Catalysis

Impression of SU and Japan
Whether at university, public or private centers, or school, the Japanese education design is committed and disciplined at any level. All we have seen or heard about the top-notch quality is not just fiction! As one of the world’s most high-tech countries, Japan has thrived in STEM (Science, technology, engineering, and mathematics). This makes it ideal for students in those fields. With plenty of programs to choose from, the academic choices are limitless. I was fortunate to be awarded a scholarship by ESITI international program to study for my Ph.D. for three years at Saitama University, one of the most famous universities in Japan. My supervisor is really supportive and helpful. If you are one of those people who prefer clean streets and cities with no trash dumped on the road, Japan is the perfect match for you. For a student, Japan is one of the finest places to get studies. Its diverse region and rich culture boast many architectural styles, tourist places, practices, traditions, and food. And the list is pretty much endless!

Research Subject
Human Computer Interaction, Computer Vision and Deep Learning

Impression of SU and Japan
Japan is one of the top countries to pursue higher education. That’s why I had a passionate to do my PhD from the Japanese universities. Later I found so many researchers with good quality in research in Bangladesh who pursued their PhD from Saitama University (SU). I talked to some of them and listened to the research quality of the SU. Then I applied to Professor Yoshinori Kobayashi to pursue my PhD and fortunately I got the chance. My professor is very kind and co-operative. I am very fortunate to have him as my supervisor. Also, I have found all the staff of SU are very friendly, helpful and student oriented. I hope I will be a pioneer researcher in the future after getting my PhD from SU. Finally, if anyone wants a friendly, helpful and safe environment besides good quality research environment, undoubtedly SU will be the best place for them.

Thesis Title
Materializing quasi-2D thin films via nano-phase separation for electronic applications
Research Summary
My research focused on the fabrication of electrically interconnected platinum nanonetworks for electronic applications. During my Ph.D., I developed ultra-fine metallic nanostructures with sub-50 nm precision for use in sensors and flexible electronic devices. I conducted my Ph.D. research at National Institute for Materials Science in collaboration with Saitama University. The professors, researchers, and staff members at both institutions were extremely supportive, cooperative, and encouraging throughout my research journey. Their guidance and the advanced research environment greatly helped me strengthen my skills in nanotechnology, materials science, and flexible electronics while collaborating with international researchers.
Impression of SU and Japan
Studying and conducting research in Japan has been one of the most meaningful experiences of my life. I feel truly fortunate to have completed my Ph.D. research at National Institute for Materials Science in collaboration with Saitama University. The research environment in Japan is highly professional, innovative, and supportive. My supervisors, professors, and laboratory colleagues were always encouraging and helpful throughout my academic journey. Japan is an incredibly safe, clean, and well-organized country. One of the things I admire most is the discipline of society and the kindness and respect shown by people in daily life. The peaceful environment and excellent public facilities make it a very comfortable place for international students and researchers. Living in Japan also allowed me to experience its rich culture, beautiful seasons, advanced technology, and traditional values. One of my happiest memories was that my family also had the opportunity to stay in Japan during my Ph.D. journey. They truly enjoyed their stay and were deeply impressed by the safety, cleanliness, hospitality, and warm behavior of Japanese people. Their positive experience made my time in Japan even more memorable and special. My experience in Japan not only strengthened my academic career but also broadened my cultural understanding and personal growth. I will always remain grateful for the opportunities and memories I gained during my stay in Japan.
Advice for Juniors and Future students
Be confident, work hard, and make full use of the excellent research opportunities available at Saitama University and in Japan. Do not hesitate to communicate with your professors and laboratory members, as they are very supportive and cooperative. Along with academics, enjoy Japanese culture, traditions, and daily life. Your time in Japan will not only strengthen your career but also become one of the most memorable experiences of your life.

“If you explore every possible factor and ruminate over them to the point of squeezing your brain, you will have a better chance of getting things right."
(Masatoshi Koshiba, Nobel Prize, Physics, 2002)
Going to University, especially one as prestigious academic and research institution in Japan of Saitama University was a wonderful experience and memories. This was an opportunity for me to learn not only the world advancement in science and engineering technology as a material science passionate; specially semiconductors and devices, but also to learn about own-self; who I am, what want to do in life, and what is my responsibility for societies and thereby nation. Although, it was un-even and challenging at initial stage, I was able to retain me on the right path throughout years. Regardless, the evaluation of pros and cons, I embraced every opportunity, therefore, I became successful to find out something on which I was passionate and persistent. Thus, I achieved my dream of doctoral graduation, most importantly, knowledges to go further way as a passionate researcher with a good network and communities.
Three years of study and research in Saidai helped me to realize a concurrent study and advanced research with a new and innovative ideas related to my research field with its proper execution, therefore, I was offered a postdoctoral researcher position in Saitama University within several days of graduation and thereafter senior researcher position in Ritsumeikan University within a month. My research mainly focusses on preparation of 2D layered semiconductor and oxide materials using a simple economical way for the applications in electronic, optical and photovoltaic devices.
However, I am so lucky to have many Japanese friends including my lab members and staffs. I encourage to all students from different parts of the world to take an opportunity to study in Japan; especially at Saitama University to explore your dream, potentiality and knowledge as well as enjoy Japanese life even though you are not familiar with Japanese language. Japan will offer you a secured quality life. Japanese peoples are very much kind, polite and cooperative!!!! Best wishes for Saidai and saidai’s family.

My name is Truong Cong Tuan. I am a former PhD student at Advanced Photonics & Sensing Laboratory (Shioda Lab), Graduate School of Science and Engineering, Saitama University. I presently am a lecturer in Precisely Mechanical and Optical Engineering, School of Mechanical Engineering, Hanoi University of Science and Engineering, Hanoi, Vietnam.
Before coming to Japan, the image I had of Japan, was limited to Toyota, Honda, Sony, Sushi & earthquakes. But now I can appreciate that technology here is not only the big names like Honda, Panasonic and many others but it is part and parcel of everyday life, be it vending machines, toilet seats or even Suica card. Japanese food is so diverse as the cooking style & dishes are different in every prefecture. People here as very polite, hardworking, disciplined and proud of their culture & roots.
Saitama University is one of the famous University in Japan with lot of international students. Saitama University has good facilities for students such as library, cafeteria, gym ... Laboratory has all the necessary equipment for students to study and to do experiment. The course covers a wide research fields of Information Technology, Material Science, Mechanical Engineering and other fields. All courses are conducted in English.
I love the peaceful life & beautiful scenic views of SU, the best part about SU is that it is at less than a hour’s distance from the heart of Tokyo with all its glitter and fancy life and at the same time it has all the natural beauty of Chichibu, Kawagoe & Nagatoro equally close to it. Learning Japanese language is one of the way which helps to feel at home here. Then interacting with local people, travelling, enjoying their tradition are few things which widen your knowledge about Japan and it ultimately help one to adjust to it. Although being pure vegetarian, I am not yet able to adjust to Japanese food. It is a very good opportunity to avail, as Japanese universities are equipped with excellent infrastructure, intelligent & dedicated professors who are very much involved in your studies/ research. There labs are full of resources and you will get a very good chance of practical learning in university and other seminars, conferences, internships you attend while being here. Overall the SU is very safe, convenient, humble and a place to learn & enjoy.