通研講演会」カテゴリーアーカイブ

平成25年度安全衛生講習会・情報セキュリティ講習会

平成25年度安全衛生講習会・情報セキュリティ講習会

日時:2013年4月11日(木)15:30~16:30*1・16:30~17:00*2
場所:東北大学電気通信研究所 ナノ・スピン棟4階カンファレンスルーム
対象:研究所構成員全員(常勤・非常勤職員、学生、研究員等)
主催:安全衛生管理室*1・やわらかい情報システム研究センター*2

IEEE DL講演会 “Artificial Ferromagnetic Nanostructures: An Experimental Platform for Magnonics”

IEEE DL講演会 “Artificial Ferromagnetic Nanostructures: An Experimental Platform for Magnonics”

日時:2013年4月8日(月)15:00~17:00
場所:東北大学電気通信研究所 1号館3階 N308会議室
題目:“Artificial Ferromagnetic Nanostructures: An Experimental Platform for Magnonics”
講師:Professor Adekunle Adeyeye(National University of Singapore)


IEEE DL講演会 “Artificial Ferromagnetic Nanostructures: An Experimental Platform for Magnonics”のご案内

再来週月曜日(4月8日)に、IEEE Magnetics Society Distinguished Lecturerの先生にご講演をお願いしました。

特に、研究室の学生さん・研究所の若手研究員の方にご出席いただけますように機関・組織内で周知いただければ幸いです。
多くの方のご出席を賜りますようご案内申し上げます。

  • 日時  :2013年4月8日(月)15:00~17:00
  • 場所  :東北大学電気通信研究所1号館3階 N308会議室
  • 題目  :“Artificial Ferromagnetic Nanostructures: An Experimental Platform for Magnonics”
  • 講師  :Professor Adekunle Adeyeye(National University of Singapore)
  • 参加費:無料、事前登録不要

発表の内容について:

 

Artificial ferromagnetic nanostructures with periodic lateral contrasts in magnetization are known as “magnonic crystals” (MCs), conceived as the magnetic analogue of photonic crystals. Recently, there is growing interest in the fundamental understanding of the spin wave propagation in MCs because of their huge potential in a wide range of applications such as microwave resonators, filters and spin wave logic devices. With advances in controlled nanofabrication techniques, it is now possible to synthesize high-quality periodic bi-component magnetic nanostructures with precisely controlled dimensions. The band spectrum of MCs consists of allowed states magnonic bands and forbidden states (magnonic gaps) that can be tuned by magnetic fields or geometrical parameters. We have shown that MCs represent a perfect system for studying excitations on disordered periodical lattices because of the possibility of controlled variation in the degree of disorder by varying the applied magnetic field [1]. We have also demonstrated functionality of magnetic logic based on a reconfigurable MC in the form of a meander-type ferromagnetic nanowire [2]. A ferromagnetic resonance method employing a microscopic coplanar waveguide was used to detect the logic state of the structure coded in its magnetic ground state.

This talk will be divided into 3 parts: the first part will focus on strategies we have developed for synthesizing high-quality 1-D and 2-D MCs using deep ultra-violet lithography technique at 248 nm exposure wavelength. Using resolution enhancement techniques, we have fabricated arrays of ferromagnetic nanostructures with lateral dimensions and inter-element spacing below the conventional resolution limit of optical lithography tools. The second part will focus on results of our recent systematic investigation of both the static and dynamic properties of MCs using a combination of magneto-optical Kerr effect measurements, magnetic force microscopy, broadband ferromagnetic resonance spectroscopy, magneto transport measurements and micromagnetic simulations. In the third part, the concept of binary magnetic nanostructures will be introduced and their potential application in magnetic logic devices demonstrated.

 

[1] J. Ding, M. Kostylev, and A. O. Adeyeye Physical Review Letters 107,047205 (2011).

[2] J. Ding, M. Kostylev, and A. O. Adeyeye Applied Physics Letters 100, 062401 (2012).

 

問い合わせ先

電気通信研究所 ブロードバンド工学研究部門 情報ストレージシステム研究室

(准教授)Simon GREAVES 

“Taking Augmented Reality out of the Laboratory and into the Real World” 講演会

“Taking Augmented Reality out of the Laboratory and into the Real World” 講演会

日時:2012年10月24日(水)10:30~12:00
場所:東北大学電気通信研究所 1号館S棟3階 S306セミナー室
題目:“Taking Augmented Reality out of the Laboratory and into the Real World”
講師:Dr. Christian Sandor(Senior Lecturer: School of Computer and Information Science University of South Australia)
備考:詳細は講演開催案内・内容のページ


講演会のご案内

南オーストラリア大学のChristian Sandor先生に,Augmented Reality と Mobile Computing に関して進めておられる研究成果をご紹介いただきます.事前申し込みは不要ですので,ご興味を持っていただけましたら,ご自由にお集まりください.

  • 日時  :2012年10月24日(水)10:30~12:00
  • 場所  :東北大学電気通信研究所 1号館S棟3階 S306セミナー室
  • 題目  :“Taking Augmented Reality out of the Laboratory and into the Real World”
  • 講師  :Dr. Christian Sandor
            (Senior Lecturer: School of Computer and Information Science
    University of South Australia)
            http://www.magicvisionlab.com/people/ChristianSandor/
  • 概要  :
      This presentation introduces our efforts to create commercial
    applications with Augmented Reality (AR), a user interface technology
    that overlays computer graphics over the user’s view of their
    surroundings. Together with our industry partners, we investigate two
    scenarios: first, to mobile information browsing on mobile phones
    (Nokia); second, to industrial product design (Canon).
      During the last decade, mobile information browsing on mobile phones has
    become a widely-adopted practice. This was made possible by the increase
    of wireless networking infrastructure and the ever increasing amount of
    online data. By employing AR, we enable users to access digital data
    much more fluidly and therefore assist everyday tasks much more
    effectively than with previous user interfaces. An example is AR X-Ray
    vision, which enables users to look through buildings and other
    obstacles.
      A common task in industrial product design is to create physical
    prototypes of new products. A common prototyping method is to use 3D
    printers to create physical models. However, 3D printers are slow and
    expensive and changes to the shape are costly and labour intensive. We
    are investigating completely virtual prototypes that can be seen through
    AR and touched through a haptic device. This enables users to
    interactively change the shape and appearance of a prototype. After
    having successfully demonstrated virtual prototypes using a pen-shaped
    haptic device, we are currently developing a system that enables users
    to touch the virtual prototypes with all their fingertips.

問い合わせ先

電気通信研究所 システム・ソフトウェア研究部門 情報コンテンツ研究室

(教授)北村 喜文

室田淳一教授 最終講義

室田淳一教授 最終講義

日時:2012年3月9日(金)11:10~12:10
場所:電子情報システム応物系 101大講義室
題目:「大規模集積化対応IV族半導体CVD原子制御プロセスの創生を目指して」

電気通信研究所 研究基盤技術センター 技術講演会

電気通信研究所 研究基盤技術センター 技術講演会

日時:2012年2月20日(月)14:00~15:30
場所:電気通信研究所2号館W棟W214号室
講演題目:電子ビーム露光法による微細加工技術(GHz 帯弾性表面波変換器への応用)
講演者:目黒敏靖(研究基盤技術センタープロセス部)
主催:東北大学電気通信研究所研究基盤技術センター
備考:詳細は開催案内ポスター
問合せ先:東北大学電気通信研究所 先端音情報通信研究室  技師長 齋藤文孝