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Affiliation |
IWATE University Faculty of Science and Engineering Department of Systems Innovation Engineering Studies in Electrical, Electronic, and Communication Engineering |
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Position |
Associate Professor |
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Laboratory Phone number |
+81-19-621-6983 |
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Mail Address |
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DAIBO Masahiro
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Research Interests 【 display / non-display 】
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holography
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magnetic field measurement
Graduating School 【 display / non-display 】
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-1988.03
Tohoku Gakuin University Faculty of Engineering Electrical Engineering Graduated
Graduate School 【 display / non-display 】
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-1999.03
Iwate University Graduate School, Division of Engineering Electronic information Doctor's Course Completed
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-1990.03
Tohoku Gakuin University Graduate School, Division of Engineering Electrical Engineering Master's Course Completed
Campus Career 【 display / non-display 】
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2007.04-Now
IWATE University Abolition organization Faculty of Engineering Associate Professor [Duty]
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2006.04-2008.03
IWATE University Faculty of Engineering Electrical and Electronic Engineering Electronic System Engineering [Concurrently]
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2005.04-2007.03
IWATE University Associate Professor (As Old Post Name) [Duty]
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2002.04-2005.03
IWATE University Faculty of Engineering Electrical and Electronic Engineering Electronic System Engineering Lecturer [Duty]
External Career 【 display / non-display 】
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1994.04-2002.03
Iwate Industrial Research Institute Engineer
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1992.04-1993.03
Raytheon Raytheon (trainee)
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1990.04-1994.03
New Japan Radio Co., Ltd. New Japan Radio Co., Ltd.
Research Areas 【 display / non-display 】
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Measurement engineering
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Nanotechnology/Materials / Applied condensed matter physics
Course Subject 【 display / non-display 】
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2004
Undergraduate Research
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2004
English Training for Electrical and Electronic Engineering Ⅱ
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2004
English Training for Electrical and Electronic Engineering Ⅰ
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2004
Advanced Electrical Engineering Laboratory
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2004
Media Processing
Research Career 【 display / non-display 】
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Laser SQUID Microscope
Periods of research：
9999.01Keywords : SQUID,non-destructive testing,semiconductor
Style of Research： Collaboration in Japan
Research Program： (not selected)
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Computer Generated Holography
Periods of research：
9999.01Keywords : Hologram,data compression
Style of Research： Individual
Research Program： (not selected)
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Vector Potential Coil and Transformer
Periods of research：
2013.04-NowKeywords : Non-destructive evaluation, Communication
Style of Research： Individual
Research Program： Grant-in-Aid for Scientific Research
Published Papers 【 display / non-display 】
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Self-interference along boundaries between positive and negative refractive index media for 3D displays
Masahiro Daibo, Tomoya Tabuchi, Prathan Buranasiri,
Proc. SPIE 11331 2020.03 [Refereed]
Bulletin of University, Institute, etc. Multiple authorship
Negative index media have a phase velocity opposite to that of the pointing vector. Therefore, if media having the same absolute value of positive and negative refractive indices are alternately arranged, standing waves are generated along the boundaries of the media because these wavelengths are the same and the directions are opposite. We propose a method of generating a stationary interference fringe that is caused by self-interference with irradiating light from a direction parallel to the positive and negative media boundaries.
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Reflective wavefront control using random zero refractive index medium
T. Tabuchi, M. Daibo,
Proc. SPIE 11331 2020.03 [Refereed]
Bulletin of University, Institute, etc. Multiple authorship
The FDTD simulation is performed with a system in which the front-surface is a concave lens, the inside of bulk is a zero refractive index medium in which positive and negative refractive index cells are randomly arranged, and a reflector is placed over the back-surface plane. In a zero-index medium, an outgoing wavefront is always parallel to the outgoing- surface, is independent of either the incident wavefront or the shape of the incoming-surface. After waiting for a while after entering pulsed light into this structure, the light reflected from the back-surface is focused at the focal point of the concave lens over the front-surface.
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DC-Bias-Magnetic-Field Dependence of Step Response in an Elliptically Polarized Single-Beam Atomic Magnetometer
Y. Shoji, S. Khanuengchat, S. Takahashi and M. Daibo
IEEE 2020 8th International Electrical Engineering Congress (iEECON) 2020.03 [Refereed]
Bulletin of University, Institute, etc. Multiple authorship
A single-beam atomic magnetometer with elliptical polarization is simple in construction because it requires only one laser for both pumping and probing. When a small-signal magnetic field is input into the magnetometer after the DC magnetic field is set to zero, a full-wave cleared waveform is output. This characteristic is appropriate for calibration and measurement of DC magnetic fields, because the bias of such fields affects their sensitivity. In this paper, we examined the step-response waveform when a pulsed magnetic field with various DC magnetic-field biases was applied. The response waveform was measured in the time domain with an oscilloscope. The oscillation frequency did not depend on the step-magnetic-field difference but on the amplitude when changing from an absolute-zero magnetic field to a finite magnetic field. Because the DC magnetic field can be determined by measuring the frequency, the bias magnetic field of the atomic magnetometer can be adjusted to maintain the
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Modeling and Numerical Simulation for a Spherical Vector-Potential Coil
S. Lekchaum and M. Daibo
IEEE Transactions on Applied Superconductivity 30 ( 4 ) 1 - 5 2020.01 [Refereed]
Bulletin of University, Institute, etc. Multiple authorship
We proposed a model for a spherical vector-potential coil and investigated the properties of the coil, including the uniform distribution of the vector potential. We modeled a structure in which thin toroidal coils are superposed along a spherical surface. Rather than arranging the toroidal coils in close contact with each other along the surface of the sphere, the layer spacing of the toroidal coils should be constant so that the projection onto the axis of the sphere is equally spaced. When a current was applied to a toroidal coil, no magnetic field was created outside the toroidal coils; instead, a vector potential was present. When the same current was passed through each toroidal coil, the vector potential in the sphere achieved a uniform distribution by superposition. We presented the results of our numerical simulation of the distribution of the vector potential and the induced voltage when a secondary conductor was passed through the coil.
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Zero Magnetic Field Calibration for Single-Beam Atomic Magnetometers Using Second Harmonics
K. Saenyot, Y. Shoji, S. Takahashi and M. Daibo
IEEE Magnetics Letters 10 1 - 4 2019.09 [Refereed]
Academic Journal Multiple authorship
Presentations 【 display / non-display 】
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DC-Bias-Magnetic-Field Dependence of Step Response in an Elliptically Polarized Single-Beam Atomic Magnetometer
Oral Presentation(General) Y. Shoji, S. Khanuengchat, S. Takahashi and M. Daibo
2020.03 -
Self-interference Along Boundaries Between Positive and Negative Refractive Index Media for 3D displays
Oral Presentation(General) Masahiro Daibo, Tomoya Tabuchi, Prathan Buranasiri
2019.11 -
Reflective Wavefront Control Independent of Incident Wavefront Us- ing Random Zero Refractive Index Medium
Oral Presentation(General) T. Tabuchi and M. Daibo
2019.11 -
Poloidal Vector Potential Transformer
Poster (General) Masahiro Daibo
2019.09 -
The Modeling and Numerical Simulation for Spherical Vector-Potential Coil,
Poster (General) Sarai Lekchaum, Masahiro Daibo
2019.09
Academic Awards Received 【 display / non-display 】
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2001.01
All winners： daibo masahiro
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1998.01
All winners： daibo masahiro
Industrial Property 【 display / non-display 】
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Vector potential generation device, vector potential transformer, shield permeation device, non-contact space electric field generation device, null circuit, and structure for vector potential generation device
Patent
Application number US2016/0300652 A1 Registration number US2016/0300652
Application date： 2016.10.13