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DTSTART:20230101T000000
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DTSTART;TZID=Europe/Moscow:20231013T160000
DTEND;TZID=Europe/Moscow:20231013T170000
DTSTAMP:20260906T224057
CREATED:20231018T075909Z
LAST-MODIFIED:20231018T075928Z
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SUMMARY:Micro/nano processing technology for metamaterials
DESCRIPTION:Yoshiaki Kanamori\nTohoku University \n\nMicro/nano processing technology is one of the important elements for achieving the academic progress and industrialization of metamaterials. There are strong expectations for the establishment of micro/nano fabrication technology to produce metamaterials that meet needs. Here\, the metamaterials developed in my research group and their microfabrication technologies are discussed. \n(i) Hydrogen annealing techniques\nBy promoting the self-diffusion of silicon surface atoms in a high-temperature hydrogen atmosphere\, the shape of the silicon surface can be deformed in the order of micro/nano meter. A structural color device (I) for visible light can be fabricated using this technology\, and a silicon dielectric metamaterial with a target size can be fabricated at a target location. \n(ii) Silicon direct bonding technologies\nWe have developed a technology to fabricate an anti-reflection metasurface on the slope of a silicon prism (II)\, which is difficult to fabricate with a normal semiconductor process\, and have realized high-efficiency terahertz light sources. \n(iii) Micro-electromechanical systems (MEMS)\nA MEMS-driven reconfigurable metamaterial device fabrication technology has been developed. We have developed tunable filters for optical communication and 6G communication systems (III). A part of this work was supported by JST\, CREST Grant Number JPMJCR2102\, Japan. \n \n  \n  \nAbout Speaker\n  \nDr. Yoshiaki Kanamori\, earned his Ph.D. in Engineering from the Department of Mechanical and Electronic Engineering at Tohoku University\, in 2001\, and he assumed the role of Assistant Professor at the Graduate School of Engineering. He was a visiting researcher between 2002 and 2003 at the Laboratory of Photonics and Nanostructure\, in CNRS\, France. Dr. Kanamori was appointed as an Associate Professor at the Graduate School of Engineering in 2007 and later professor in 2019. Previously\, he was the director of the Micro and Nanomachining Research and Education Center (MNC). Dr. Kanamori assumed the position of Director at the Metamaterials Research and Innovation Center (Meta-RIC) and joined Green Future Creation Organization at Tohoku University. \n  \n\n \n  \n 
URL:https://unam.bilkent.edu.tr/en/event/micro-nano-processing-technology-for-metamaterials/
CATEGORIES:Nanocolloquium Series
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BEGIN:VEVENT
DTSTART;TZID=Europe/Moscow:20231020T160000
DTEND;TZID=Europe/Moscow:20231020T170000
DTSTAMP:20260906T224057
CREATED:20231018T080219Z
LAST-MODIFIED:20231018T080231Z
UID:7952-1697817600-1697821200@unam.bilkent.edu.tr
SUMMARY:Quantum Computers\, Quantum Sensors\, and Magnets
DESCRIPTION:Michael E. Flatté\nThe University of Iowa \n\nRecent advances in quantum technologies\, including room-temperature quantum operations on quantum bits (“qubits”)\, suggest the field is rapidly progressing towards practical quantum sensors and computers. However a major challenge remains how to connect these qubits together. Some types of qubits are very small\, making it very difficult to get wires in to address them individually. Some other types\, like the most advanced superconducting qubits\, are very big\, making it difficult to put very many of them into a single fridge. I will describe some general approaches to linking qubits together on the micron scale required for practical integration of many qubits\, as well as some potential advantages to using magnetic materials as “linkers”. Recent practical demonstrations of linking behavior are creating a new subfield of quantum research based on magnetic excitations\, or magnons\, entitled Quantum Coherent Magnonics. \n \n  \n  \nAbout Speaker\nMichael E. Flatté received the A.B. degree in physics from Harvard University\, Cambridge\, MA\, USA\, in 1988\, and the Ph.D. degree in physics from the University of California at Santa Barbara\, Santa Barbara\, CA\, USA\, in 1992. He is a Professor at the Department of Physics and Astronomy\, The University of Iowa (UI)\, Iowa City\, IA\, USA. After his post-doctoral work at the Institute for Theoretical Physics\, University of California at Santa Barbara\, and the Division of Applied Sciences\, Harvard University\, he joined the faculty at UI in 1995. He has over 270 publications and ten patents. He has an adjunct appointment as a Professor at the Department of Applied Physics\, Eindhoven University of Technology\, Eindhoven\, The Netherlands. His research interests include optical and electrical control of spin dynamics in materials\, novel spintronic devices\, quantum sensors\, and solid-state realizations of quantum computation. Dr. Flatté is a fellow of the American Association for the Advancement of Science and the American Physical Society. \n  \n\n \n  \n 
URL:https://unam.bilkent.edu.tr/en/event/quantum-computers-quantum-sensors-and-magnets/
CATEGORIES:Nanocolloquium Series
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