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You are here: Home Administration Physics Department Events 2018 January IEEE Distinguished Lecture: Mitsuteru Inoue, "Magnetic Phase Interference in Artificial Magnetic Lattices: Functions and Applications to Optical, High-Frequency, and Spin Wave Devices"

IEEE Distinguished Lecture: Mitsuteru Inoue, "Magnetic Phase Interference in Artificial Magnetic Lattices: Functions and Applications to Optical, High-Frequency, and Spin Wave Devices"

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IEEE Distinguished Lecture: Mitsuteru Inoue, "Magnetic Phase Interference in Artificial Magnetic Lattices: Functions and Applications to Optical, High-Frequency, and Spin Wave Devices"
When Jan 08, 2018
from 11:00 AM to 12:00 PM
Where CDI Center for Discovery and Innovation; 4th Floor Seminar Room
Contact Phone (212)650-7443
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IEEE Magnetics Society Distinguished Lecturer for 2018
Magnetic Phase Interference in Artificial Magnetic Lattices: Functions and
Applications to Optical, High-Frequency, and Spin Wave Devices
Mitsuteru Inoue
Toyohashi University of Technology, Japan
The introduction of artificial magnetic structures into magnetic materials can induce novel
electromagnetic and spin-wave behavior. Nano- and submicrometer-scale artificial magnetic
lattices (AMLs) can control optical (electromagnetic) waves in magnetophotonic crystals [1],
volumetric magnetic holograms [2], and labyrinthian magnetic domain structures [3], and can
affect spin waves in magnonic crystals [4].
In this talk, the fundamental properties of such AMLs, mainly in magnetic garnet films and
alloy thin films, are discussed, followed by demonstrations of their applications in optical and
spin-wave micro-devices driven by magnetic phase interference: volumetric magneto-optic (MO)
hologram memories [2] and three-dimensional MO holographic displays [5] with
magnetophotonic crystals; high-speed MO Q-switch micro-chip lasers with iron-garnet films with
labyrinthian magnetic domain structures [3]; and highly sensitive magnetic sensors and spinwave
logic circuits with magnonic crystals [6].
Prospective future spin-wave devices with AMLs will be discussed in the context of the new
paradigm of magnonics (electron non-transport electronics), where spin waves play an important
role as the information carrier.
[1] T. Goto et al., “Magnetophotonic crystal comprising electro-optical layer for controlling
helicity of light,” J. Appl. Phys., vol. 111, 07A913, 2012.
[2] Y. Nakamura et al., “Error-free reconstruction of magnetic hologram via improvement of
recording conditions in collinear optical system,” Optics Exp., vol. 25, pp. 15349-15357, 2017.
[3] R. Morimoto et al., “Magnetic domains driving a Q-switched laser,” Sci. Rep., vol. 6, 38679,
2016.
[4] N. Kanazawa et al., “Metal thickness dependence on spin wave propagation in magnonic
crystal using yttrium iron garnet,” J. Appl. Phys., vol. 117, 17E510, 2015.
[5] K. Nakamura et al., “Improvement of diffraction efficiency of three-dimensional magnetooptic
spatial light modulator with magnetophotonic crystal,” Appl. Phys. Lett., vol. 108, 02240,
2016.
[6] N. Kanazawa et al., “Demonstration of a robust magnonic spin wave interferometer,” Sci. Rep.,
vol. 6. 30268, 2016.
Mitsuteru Inoue received the B.S. degree in information engineering and
the M.S. and Dr.Eng. degrees in electrical and electronic engineering in
1981, 1983, and 1989 from Toyohashi University of Technology (TUT),
Japan. He was an associate professor at TUT from 1993 to 1996, and with
the Research Institute of Electrical Communication, Tohoku University,
from 1997 to 1999. From 2001 to 2013 he served as professor in the
Department of Electrical and Electronic Engineering, TUT. Since 2014 he is
jointly serving as professor of the Graduate School of TUT and as an
executive trustee and vice president of TUT. He was a visiting professor at
Stanford University in 2003 and at Moscow State University in 2004.
His research interests include spin-coupled wave propagation phenomena in amorphous
alloy and magnetic garnet thin films, including phase modulation of magneto-surface-acousticwaves,
control and phase modulation of optical waves, and control of high-frequency
magnetostatic and spin waves, together with their applications in magneto-optical (MO) spatial
light modulators, three-dimensional MO displays, non-destructive MO imaging, magnetic
hologram recording, and spin-wave logic circuits.
Prof. Inoue has served as the director of Magnetics Society of Japan from 2013 to 2015 and
as the general chair of the Magnetics and Optics Research International Symposium (MORIS,
2015 and 2018). He is currently the chair of the 147th Committee on Amorphous and Nano-
Crystalline Materials of the University-Industry Cooperative Research Committees, Japan Society
for the Promotion of Science (JSPS).
Contact: Mitsuteru Inoue, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho,
Toyohashi, Aichi, 441-8580, Japan; email: inoue@tut.ac.jp