0-20-40-60-80]0・Hard Disk Drives・MagnetoOptical DisksStorage of Information・Memory・MPU・Laser DiodesBd[ ytisnedartcepS l#0#0#1#1#3#3Frequency:0.383Frequency:0.383#0#0#2#2#1#1#3#3#2#2Frequency:0.355Frequency:0.355Modulation SignalOptical Circuit for Wavelength Channel Separation based on Photonic CrystalsLogical Operations on InformationHigh-Speed, Low Power Consumption48(1) Optical single sideband (SSB) modulation for long -haul fiber transmission(2) Functional photonic circuitsSemiconductor DevicesControllingElectronic ‘Charges’Semiconductor and Magnetic materials-20Ferromag. Source-101020GateFerromag. Drain2DEGbased on photonic crystalsMagnetic DevicesControllingElectronic ‘Spins’Integration of transmission with high spectral efficiencysignalsYamagata UniversityGraduate School of Science and Engineering Research Interest ：High-Speed CommunicationsYamagata University Graduate School of Science and EngineeringE-mail ktakano@yz.yamagata-u.ac.jpResearch InterestTel ：+81-238-26-3313High-Speed CommunicationsYamagata UniversityGraduate School of Science and Engineering Research Interest ：Semiconductor Materials, Yamagata University Graduate School of Science and Engineering Research InterestSemiconductor Materials, Optical ElectronicsE-mail：：ｔａｋａｈａｓｙ＠yz.yamagata-u.ac.jpTel&Fax：+81-238-26-3296, 3299E-mail ・ Tel & Fax ・ +81-238-26-3296, 3299HP ：http://takahashilab.yz.yamagata-u.ac.jp/HP・http://takahashilab.yz.yamagata-u.ac.jp/Optical ElectronicsRelative frequency [GHz]Black: Optical SSB modulationGray: Conventional intensity modulationSpectrum of Optical Single Sideband Bitrate: 10GbpsE-mail ・ ktakano@yz.yamagata-u.ac.jpHP ：http://www.takanolab.yz.yamagata-u.ac.jp/Tel ・ +81-238-26-3313HP・http://www.takanolab.yz.yamagata-u.ac.jp/ContentContent：We are studying on optical communications and photonics in order We are studying on optical communications and photonics to realizing comfortable human society. Large capacity tele-in order to realizing comfortable human society. Large communications and ubiquitous sensor networks can serve capacity tele-communications and ubiquitous sensor comfortableness in lives, because the technologies can make barrier-networks can serve comfortableness in lives, because the less interfaces among humans, or between human and terminal machineries. Many kinds of idea for the technologies are proposed in technologies can make barrier-less interfaces among our grope and evaluated theoretically and experimentally by humans, or between human and terminal machineries. Many ourselves. Some of detailed our techniques are introduced as follows.kinds of idea for the technologies are proposed in our grope and evaluated theoretically and experimentally by ourselves. Some of detailed our techniques are introduced as follows.Appealing point：(1) Optical single sideband (SSB) modulation for Long-haul fiberSpecial objectives(1) Optical single sideband (SSB) modulation for Long-haul (2) Functional photonic circuits based on photonic crystals(3) Functional photonic circuits using optical amplifiers(4) Optical modulation techniques for both analogue and digital(2) Functional photonic circuits based on photonic crystals(3) Functional photonic circuits using optical amplifiers(4) Optical modulation techniques for both analogue and fiber transmission with high spectral efficiencydigital signalsContentContent: Semiconductor devices are the basics of information Semiconductor devices are the basics of information technology that technology that drives the present-day society. The current drives the present-day society. The current semiconductor devices semiconductor devices function by moving or storing function by moving or storing ‘charges’ of electrons. While in ‘charges’of electrons. While in magnetic devices such as magnetic devices such as hard-disk drives, magnetic moments or hard-disk drives, magnetic moments or‘spins’of electrons ‘spins’ of electrons play an pivotal role to store information.Novel play an pivotal role to store information. Novel devices devices exploiting both electronic ‘charges’ and ‘spins’, which will exploiting both electronic‘charges’and‘spins’, which will be be realized by integrating semiconductor and magnetic technologies, realized by integrating semiconductor and magnetic are proposed and extensively studied. This technology is expected to technologies, are proposed and extensively studied. This bring us beyond the present semiconductor technology and further technology is expected to bring us beyond the present promote the information-oriented society.semiconductor technology and further promote the Appealing point：information-oriented society.We study the magnetic and transport properties in semiconductor-magnetic hybrid devices by exploiting our experimental expertise on Special objectivescrystal growth by sputtering and electrical, optical and magnetic measurements. We study the magnetic and transport properties in semiconductor-magnetic hybrid devices by exploiting our experimental expertise on crystal growth by sputtering and electrical, optical and magnetic measurements. yz.yamagata-u.ac.jpResearch on Tele-Communications supported by Optical Signal ProcessingResearch on Tele-Communications supported by Optical Signal ProcessingAssociate Professor Katsumi TakanoAssociate Prof.Katsumi TakanoNovel Functional Devices Exploiting Electron Spins in SolidsNovel Functional Devices Exploiting Electron Spins in SolidsAssociate Professor Yutaka TakahashiAssociate Professor Yutaka Takahashi
元のページ ../index.html#50