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fixed#fixed" data-fixed-isfixed-value="false"> Academics Research Campus Life Admissions & Aid About ACCESS Apply GIVE JP EN For Others, With Others shortcut-nav#toggleOpen"> JP EN ACCESS APPLY GIVE Articles Features The Knot Technology for making small things can also help to explain the birth of stars #Faculty #Electrical and Electronics Engineering Division #Master’s & Doctoral Programs in Science and Technology #Department of Engineering and Applied Sciences #Graduate School of Science and Technology #Faculty of Science and Technology 2023.06.14 Toshihiro Nakaoka Professor Department of Engineering and Applied Sciences Faculty of Science and Technology copyurl#copy"> bookmark#toggle keyup.enter->bookmark#toggle onBookmarkItemUpdate@window->bookmark#handleUpdate"> Professor Toshihiro Nakaoka of the Faculty of Science and Technology specializes in semiconductor microfabrication: technology for making nano-sized objects. One of his research themes using nanotechnology is joint research with Japan Aerospace Exploration Agency (JAXA) on an optical filter for observing invisible stars. What is nanotechnology research that will be crucial to unraveling the mysteries of the universe? The formation of stars and planets in the universe is a subject that has yet to be fully explained. One key to understanding this mystery is infrared astronomy. This is a method of observing the universe using infrared rays, which have longer wavelengths than visible light. Currently, as joint research with JAXA’s Laboratory of Infrared Astrophysics, I am involved in the development of an optical element needed for astronomical observations using infrared. In general, optical elements are lenses, filters, mirrors, and such found in optical devices such as cameras and projectors. The optical element which we are developing is an optical filter for obtaining information regarding stars found in the universe. To explore the formation of stars, it is necessary to observe the galaxies and other areas where star formation is actively occurring. However, ultraviolet rays from young and hot stars are absorbed by cosmic dust and cannot be seen well. At the same time, dust warmed by these ultraviolet rays emit infrared rays, making infrared observation possible. It is hoped that infrared astronomy will allow the observation of light spectra that were previously invisible. Is it possible to effectively focus infrared light? Can we properly extract only the desired lights? We are taking on the challenge of developing an optical filter that makes this possible. My specialization is nanotechnology, but if things go well, I may be able to contribute toward unraveling the birth of stars and other mysteries of the universe. Achieving high performance using transistors produced by nanotechnology Nanotechnology is being applied to the development of optical elements. The core elements of computers and smartphones are called transistors, and today, these have been miniaturized to nano sizes. My specialization is to use semiconductor microfabrication—which enables such miniaturization—to observe interesting physical phenomena and apply it to new elements, and this technology is also useful in the development of optical elements. Serendipity—the discovery of the unexpected—makes research interesting The basic approach of our research is to make things. While we carry out theoretical calculations to predict characteristics and compare actual experiments with computer simulations, we still emphasize the actual making of things. For optical element research, we go to JAXA and work in a clean room that allows semiconductor microfabrication. There are also tasks to be performed at the university’s laboratory, and students shuttle between JAXA and the university to produce elements. In research, while it is important to form hypotheses and carry out experiments for verification, I think the most interesting part is serendipity, which is the discovery of the unexpected. If we obtain characteristics that are opposite to those predicted, we pursue the reasons behind them. There are lessons to be learned because things were not as expected. This high degree of freedom is the charm of university research. The optical element being developed now is also research that originates from serendipity. It is also serendipity that led me to astronomy—a field that captivated me when I was a child—through continuing with research on optical physics and semiconductor microfabrication. I believe there is nothing better than undertaking interesting research while linking serendipity to create something that is useful to society in the future. The book I recommend “Hoshizora no Karyudo”(The Hunter of the Starry Sky) by Tsutomu Seki, Chikumashobo I came across this book in my fifth year at elementary school. It is a story about an amateur astronomer who searched for comets using a homemade telescope. This sparked my strong interest in astronomy, leading me to undertake research regarding light and eventually, joint research with JAXA. This book is what started it all. Toshihiro Nakaoka Professor Department of Engineering and Applied Sciences Faculty of Science and Technology Graduated from the Department of Physics, School of Science, Osaka University and received his Ph.D. in Science after completing the doctoral program at the university’s Graduate School of Science. Took on several positions—such as a researcher at the University of Tokyo’s Institute of Industrial Science, PRESTO researcher at Japan Science and Technology Agency (JST), and associate professor at the Faculty of Science and Technology, Sophia University—before assuming his current position in 2017. Department of Engineering and Applied Sciences Interviewed: June 2022 copyurl#copy"> bookmark#toggle keyup.enter->bookmark#toggle onBookmarkItemUpdate@window->bookmark#handleUpdate"> #The Knot- Nexus of Knowledge by Sophia Professors #Faculty #Electrical and Electronics Engineering Division #Master’s & Doctoral Programs in Science and Technology #Department of Engineering and Applied Sciences #Graduate School of Science and Technology #Faculty of Science and Technology View full article list Related Contents The Knot- Nexus of Knowledge by Sophia Professors bookmark#toggle keyup.enter->bookmark#toggle onBookmarkItemUpdate@window->bookmark#handleUpdate"> Using satellite data to check how international aid is overcoming social challenges #Department of Economics#Faculty of Economics 2023.03.09 Read The Knot- Nexus of Knowledge by Sophia Professors bookmark#toggle keyup.enter->bookmark#toggle onBookmarkItemUpdate@window->bookmark#handleUpdate"> Revisiting the Middle Ages through the &＃8220;music of the Blessed Virgin Mary&＃8221; #Department of History#Faculty of Humanities 2024.02.29 Read The Knot- Nexus of Knowledge by Sophia Professors bookmark#toggle keyup.enter->bookmark#toggle onBookmarkItemUpdate@window->bookmark#handleUpdate"> Focusing on a wide variety of emotions and their purposes in educational settings #Center for Liberal Education and Learning#Center for Language Education and Research 2024.04.04 Read The Knot- Nexus of Knowledge by Sophia Professors bookmark#toggle keyup.enter->bookmark#toggle onBookmarkItemUpdate@window->bookmark#handleUpdate"> Pop culture, representations of people’s lives, can facilitate understanding of others #Department of Luso-Brazilian Studies#Faculty of Foreign Studies 2023.04.14 Read The Knot- Nexus of Knowledge by Sophia Professors bookmark#toggle keyup.enter->bookmark#toggle onBookmarkItemUpdate@window->bookmark#handleUpdate"> Germany and the Russian invasion of Ukraine #Department of German Studies#Faculty of Foreign Studies 2023.11.23 Read The Knot- Nexus of Knowledge by Sophia Professors bookmark#toggle keyup.enter->bookmark#toggle onBookmarkItemUpdate@window->bookmark#handleUpdate"> Analyzing the increasing movement of migrants and refugees through international politics #Department of International Legal Studies#Faculty of Law 2023.09.21 Read HOME Articles Features The Knot- Nexus of Knowledge by Sophia Professors Technology for making small things can also help to explain the birth of stars Sophia University For Others, With Others Official Social Media Academics accordion#toggle" > Undergraduate Programs accordion#toggle" > Faculty of Theology Faculty of Humanities Faculty of Human Sciences Faculty of Law Faculty of Economics Faculty of Foreign Studies Faculty of Global Studies Faculty of Liberal Arts Faculty of Science and Technology SPSF: Sophia Program for Sustainable Futures University-wide General Education accordion#toggle" > Studies in Christian Humanism Embodied Wisdom The Art of Thinking and Expression Data Science Language Education Global Education at Sophia University accordion#toggle" > Learning at Sophia University Learning Abroad Learning Support Graduate Programs accordion#toggle" > Graduate School of Theology Graduate School of Humanities Graduate School of Applied Religious Studies Graduate School of Human Sciences Graduate School of Law Graduate School of Economics Graduate School of Languages and Linguistics Graduate School of Global Studies Graduate School of Science and Technology Graduate School of Global Environmental Studies Graduate Degree Program of Applied Data Sciences Course of Midwifery Lifelong Learning Research accordion#toggle" > Sophia University Research Initiatives accordion#toggle" > Sophia Open Research Weeks (SORW) Research Institutes Industry-Government-Academia Collaboration Intellectual Property Sophia University’s Research Promotion System accordion#toggle" > Research on Priority Areas and Research on Optional Subjects Regulations Governing Research Activities and Use of Research Funds Campus Life accordion#toggle" > Semester Classification and Class Schedule Extracurricular Activities Volunteer Activities Global Learning Community Student Counseling Services accordion#toggle" > Mental and Physical Health Consultation Harassment Prevention Measures Support for Students with Disabilities Career Development Support accordion#toggle" > Career Design Program Career support for students with Study Abroad experience / Global Careers Statistics Relating to Post-graduation Employment (Provisional Acceptance), Graduate Outcomes, etc. Guidance for Corporate Recruiters Guidance for Graduates Housing Support Facilities Available on and off Campus accordion#toggle" > Facilities available at the Yotsuya Campus Other Facilities Admissions & Aid accordion#toggle" > Sophia University Admissions Policy Degrees offered by Sophia University Non-Matriculated Student Research Student, Foreign Special Research Student, and MEXT Scholarship Student Exchange Student from an Overseas University Non-Degree Student Sophia Short-term Program Student Tuition and Scholarships accordion#toggle" > Tuition Scholarships to Apply for Before Entering Undergraduate Programs Scholarships for Undergraduate Students New National Financial Support Program for Receiving Higher Education Scholarships for Graduate School Students Expenses and Scholarships for Studying Abroad Financial Support for Those with Abrupt Changes in Family Economic Circumstances and for Victims of Disasters About accordion#toggle" > Message from the President The Spirit of Sophia University accordion#toggle" > Philosophy of Sophia University History of Sophia University Sophia Archives Sophia as a Catholic University Global Engagement accordion#toggle" > Visits from Global Intellectuals Global Campus United Nation Weeks &＃038; 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