start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=
article-no=
start-page=181
end-page=193
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1979
dt-pub=19790305
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Notion of Adjoint Spectrum in the Application to Air-pollution Monitoring
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This report deals with a notion of adjoint spectrum which is applicable to air-pollution monitoring by using pulsed lasers. Both Raman and absorption spectra of multiple gas complex are linear combinations of the spectra, each of which is specific to a gas species and its magnitude is proportional to the density. An extended formulation of the method of least squares is made in terms of a new notion, adjoint spectra, which visualizes the structure of the numerical filter. Applications of the derived numerical filters to the two methods are shown and features are described about the synthesized filters.
en-copyright=
kn-copyright=

en-aut-name=SanoHiroya
en-aut-sei=Sano
en-aut-mei=Hiroya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=ŒΓ‰κ—²Ž‘
kn-aut-sei=ŒΓ‰κ
kn-aut-mei=—²Ž‘
aut-affil-num=2
ORCID=

en-aut-name=TanadaYoshihiro
en-aut-sei=Tanada
en-aut-mei=Yoshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=KosakaMegumi
en-aut-sei=Kosaka
en-aut-mei=Megumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of electronics

affil-num=2
en-affil=
kn-affil=Department of electronics

affil-num=3
en-affil=
kn-affil=Department of electronics

affil-num=4
en-affil=
kn-affil=Department of electronics
END

start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=
article-no=
start-page=195
end-page=207
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1979
dt-pub=19790305
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Performance Analysis For An Air-Pollution Monitoring Using A Pulsed Dye Laser
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The maximally attainable accuracy of an airpollution monitoring system is investigated. The system is composed of a tunable pulsed dye laser as the light source, photodiodes as the opto-electric converter and a low noise electronic signal processor specifically designed by the authors. The extreme value of the accuracy is given in terms of the standard deviation of the attenuation. The value is 3.4~10(-4)[Nepγ(pulse number)] for an averaged value for multiple laser shots. Also the wavelength reproduceability of a dye laser was examined, which resulted in that a computer should take a part in the wavelength control in order that this method should be feasible.
en-copyright=
kn-copyright=

en-aut-name=SanoHiroya
en-aut-sei=Sano
en-aut-mei=Hiroya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=ŒΓ‰κ—²Ž‘
kn-aut-sei=ŒΓ‰κ
kn-aut-mei=—²Ž‘
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TanadaYoshihiro
kn-aut-sei=Tanada
kn-aut-mei=Yoshihiro
aut-affil-num=3
ORCID=

en-aut-name=KosakaMegumi
en-aut-sei=Kosaka
en-aut-mei=Megumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of electronics

affil-num=2
en-affil=
kn-affil=Department of electronics

affil-num=3
en-affil=
kn-affil=Department of electronics

affil-num=4
en-affil=
kn-affil=Department of electronics
END

start-ver=1.4
cd-journal=joma
no-vol=14
cd-vols=
no-issue=1
article-no=
start-page=55
end-page=60
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1979
dt-pub=19791201
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Absorption Spectrum Measurement for Atmospheric Level Nitric Monoxide in ƒΑ-0 Band and Its Density Deduction
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=An absorption spectrum of ƒΑ-0 band of nitric monoxide of
very dilute density was taken. An experimental electronic device showed a distinguishing power of 0.01 ppm through 10 m optical pathlength. By the aid of a data processing based on a principle developed by the authors, this sensitivity does not suffer from coexisting sulfur dioxide, which shares the absorption band with the nitric monoxide.
en-copyright=
kn-copyright=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=ŒΓ‰κ—²Ž‘
kn-aut-sei=ŒΓ‰κ
kn-aut-mei=—²Ž‘
aut-affil-num=1
ORCID=

en-aut-name=HiraoKeiji
en-aut-sei=Hirao
en-aut-mei=Keiji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=KosakaMegumi
en-aut-sei=Kosaka
en-aut-mei=Megumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=SanoHiroya
en-aut-sei=Sano
en-aut-mei=Hiroya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electronics

affil-num=2
en-affil=
kn-affil=Graduate School of Electronics

affil-num=3
en-affil=
kn-affil=Department of Electronics

affil-num=4
en-affil=
kn-affil=Department of Electronics
END

start-ver=1.4
cd-journal=joma
no-vol=14
cd-vols=
no-issue=2
article-no=
start-page=13
end-page=22
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1980
dt-pub=19800301
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A High-powered Optoelectronic Switch with Picosecond Risetime
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A switch element has been developed so that a kilovolt step voltage should be supplied to a 50ƒΆ transmission line with a subnanosecond rise time. The element is of silicon substrate with high purity and a pair of electrodes is attached by the evaporation process. The switch action is performed by the photoconductivity produced by the laser light pulse. This paper deals with a preliminary analysis, manufacturing processes and experimental results of the
optoelectronic switch. A performance of 320V output with less than 4 ns risetime was obtained with sufficient persistence for more than 2~10(5) pulse shots. This switch was successfully applied to an optical waveform monitor for laser light pulses giving a resolution less than 2 ns.
en-copyright=
kn-copyright=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=ŒΓ‰κ—²Ž‘
kn-aut-sei=ŒΓ‰κ
kn-aut-mei=—²Ž‘
aut-affil-num=1
ORCID=

en-aut-name=EbaraMasami
en-aut-sei=Ebara
en-aut-mei=Masami
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=KosakaMegumi
en-aut-sei=Kosaka
en-aut-mei=Megumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=SanoHiroya
en-aut-sei=Sano
en-aut-mei=Hiroya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electronics.

affil-num=2
en-affil=
kn-affil=Department of Electronics.

affil-num=3
en-affil=
kn-affil=Department of Electronics.

affil-num=4
en-affil=
kn-affil=Department of Electronics.
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=43
end-page=49
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19911130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Application of the Adjoint Spectrum to the Frequency Tracking in Spectrometry with Tunable Diode Lasers Suffering from Temperature Drift
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A numerical technique called as "adjoint spectrum" has been proposed by the authors in a previous work. Two applications of it are presented here. It is demonstrated that by generalizing the aspect of adjoint spectrum it becomes possible to measure densities of mixed gases simultaneously. An experimental proof of this has been carried on and simultaneous measurement of densities of both methane and dinitrogen oxide was realized. On the other hand, it is also reported that frequency shifting of spectra, which is a cause of error in spectrometric measurements, can be corrected by exploiting the adjoint spectrum technique in connection with the Taylor expansion. Numerical examples showing the success of this method are reported as well.
en-copyright=
kn-copyright=

en-aut-name=BouzidiMoncef
en-aut-sei=Bouzidi
en-aut-mei=Moncef
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=ŒΓ‰κ—²Ž‘
kn-aut-sei=ŒΓ‰κ
kn-aut-mei=—²Ž‘
aut-affil-num=2
ORCID=

en-aut-name=WadaOsami
en-aut-sei=Wada
en-aut-mei=Osami
kn-aut-name=˜a“cCŒΘ
kn-aut-sei=˜a“c
kn-aut-mei=CŒΘ
aut-affil-num=3
ORCID=

en-aut-name=KagawaNaoki
en-aut-sei=Kagawa
en-aut-mei=Naoki
kn-aut-name=μ’ΌŒΘ
kn-aut-sei=μ
kn-aut-mei=’ΌŒΘ
aut-affil-num=4
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=HaiXu
kn-aut-sei=Hai
kn-aut-mei=Xu
aut-affil-num=5
ORCID=

en-aut-name=KosakaMegumi
en-aut-sei=Kosaka
en-aut-mei=Megumi
kn-aut-name=¬βŒb
kn-aut-sei=¬β
kn-aut-mei=Œb
aut-affil-num=6
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SanoHIroya
kn-aut-sei=Sano
kn-aut-mei=HIroya
aut-affil-num=7
ORCID=

affil-num=1
en-affil=
kn-affil=The Graduate School of Natural Science and Technology

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=4
en-affil=
kn-affil=The Graduate School of Natural Science and Technology

affil-num=5
en-affil=
kn-affil=Measurement and Test Center, North-East Normal University

affil-num=6
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=7
en-affil=
kn-affil=Faculty of Engineering, Fukuyama University
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=37
end-page=50
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Second Harmonic Detection of Atmospheric Trace Gases with a Train-Pulse Driven Lead-Salt Tunable Diode Laser for an Operation at Peltier Cooling Temperature
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Is proposed a tunable diode laser absorption spectrometer system which employs a pulsed current to drive the diode laser still implementing a second-harmonic detection methods enhancing a signal to noise up to 104 times that the case without it. This system affords the lead-salt diode laser a higher operating temperature which allows a more compact deep cooling system. A principle is based on employing a gated integrator between the preamplifier and the lock-in amplifier. Investigations are made on the optimum selection of the gating aperture time interval as determined by response time of the infrared detector and the pulse width of the laser driving current.
en-copyright=
kn-copyright=

en-aut-name=BouzidiMoncef
en-aut-sei=Bouzidi
en-aut-mei=Moncef
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=ŒΓ‰κ—²Ž‘
kn-aut-sei=ŒΓ‰κ
kn-aut-mei=—²Ž‘
aut-affil-num=2
ORCID=

en-aut-name=WadaOsami
en-aut-sei=Wada
en-aut-mei=Osami
kn-aut-name=˜a“cCŒΘ
kn-aut-sei=˜a“c
kn-aut-mei=CŒΘ
aut-affil-num=3
ORCID=

en-aut-name=KagawaNaoki
en-aut-sei=Kagawa
en-aut-mei=Naoki
kn-aut-name=μ’ΌŒΘ
kn-aut-sei=μ
kn-aut-mei=’ΌŒΘ
aut-affil-num=4
ORCID=

en-aut-name=HaiXu
en-aut-sei=Hai
en-aut-mei=Xu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=KosakaMegumi
en-aut-sei=Kosaka
en-aut-mei=Megumi
kn-aut-name=¬βŒb
kn-aut-sei=¬β
kn-aut-mei=Œb
aut-affil-num=6
ORCID=

en-aut-name=SanoHiroya
en-aut-sei=Sano
en-aut-mei=Hiroya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

affil-num=1
en-affil=
kn-affil=The Graduate School of Natural Science and Technology

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=4
en-affil=
kn-affil=The Graduate School of Natural Science and Technology

affil-num=5
en-affil=
kn-affil=Measurement and Test Center, North-East Normal University

affil-num=6
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=7
en-affil=
kn-affil=Faculty of Engineering, Fukuyama University
END

start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=1
article-no=
start-page=47
end-page=60
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1980
dt-pub=19801129
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Fast Spectrometry System with Using Tunable Laser Diode
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Basic prohlems are discussed about a local, realtime and very sensitive air-pollution monitoring using a laser diode. The method employs the second derivative spectrometry replacing the incoherent light source and mechanical choppers in a traditional method with the laser diode and a newly developed electronic system. Etalon fringes at this system becomes the dominant noise source and its statistic and dynamical features are to be understood. Numerical examination was done for the optimal width of optical frequency modulation. A very fast measurement of weak absorption spectra became possible by the development of lock-in-amplifiers with finite integration time instead of a low-pass filter. Spectra of methane in 7.6 ƒΚm region and a time-dependent spectrum
of the etaIon fringe are shown.
en-copyright=
kn-copyright=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=NagaseSatoru
en-aut-sei=Nagase
en-aut-mei=Satoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=KosakaMegumi
en-aut-sei=Kosaka
en-aut-mei=Megumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=SanoHiroya
en-aut-sei=Sano
en-aut-mei=Hiroya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electronics

affil-num=2
en-affil=
kn-affil=Department of Electronics

affil-num=3
en-affil=
kn-affil=Department of Electronics

affil-num=4
en-affil=
kn-affil=Department of Electronics
END

start-ver=1.4
cd-journal=joma
no-vol=18
cd-vols=
no-issue=1
article-no=
start-page=91
end-page=100
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1984
dt-pub=19840330
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Optical Circuit for Waveform-synthesis with Utilizing both GaAs- and Si-Optoelectronic Switches
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper presents an optical-waveform synthesizer as one
of the applications of optical bistable devices. This device is advantageous in terms of faster operation in which width of each pulse obtained is down to the order of subnanosecond, because this device employs both GaAs- and Si-optoelectronic switches as photodetector. Optical pulse shaping as a preliminary experiment is also described.
en-copyright=
kn-copyright=

en-aut-name=SanoHiroya
en-aut-sei=Sano
en-aut-mei=Hiroya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=ŒΓ‰κ—²Ž‘
kn-aut-sei=ŒΓ‰κ
kn-aut-mei=—²Ž‘
aut-affil-num=2
ORCID=

en-aut-name=KosakaMegumi
en-aut-sei=Kosaka
en-aut-mei=Megumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=WakeIchiro
en-aut-sei=Wake
en-aut-mei=Ichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electronics

affil-num=2
en-affil=
kn-affil=Department of Electronics

affil-num=3
en-affil=
kn-affil=Department of Electronics

affil-num=4
en-affil=
kn-affil=Department of Electronics
END

start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=2
article-no=
start-page=79
end-page=92
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1981
dt-pub=19810330
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Accuracy and Etalon Fringe Phenomena in Methane-gas Spectrometry Employing Tunable Diode Lasers
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A method to monitor atmospheric gas concentration employing a tunable diode laser is proposed. An apparatus was built and experiments were made. The tunable diode laser employed was of'PbSnTe with its wavenumber about 1200 cm(-1) at a temperature of 77 K. Methane concentration in laboratory atmosphere was measured on the experiments. The inquired gas-density is obtained by a hardwired microcomputer incorporating the measured absorption spectrum over a prescribed range instead of an absorption at a single wavenumber. By this, drift type noises are suppressed. After an analysis based on experimental data, an attainable sensitivity for methane was found to be 1 ppb.m. This value may increase if an etalon fringe interference exists. The natural concentration, about 1 ppm, of atmospheric methane was actually measured with a short optical path of only one meter.
en-copyright=
kn-copyright=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=ŒΓ‰κ—²Ž‘
kn-aut-sei=ŒΓ‰κ
kn-aut-mei=—²Ž‘
aut-affil-num=1
ORCID=

en-aut-name=NagaseSatoru
en-aut-sei=Nagase
en-aut-mei=Satoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=KosakaMegumi
en-aut-sei=Kosaka
en-aut-mei=Megumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=SanoHiroya
en-aut-sei=Sano
en-aut-mei=Hiroya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electronics

affil-num=2
en-affil=
kn-affil=Department of Electronics

affil-num=3
en-affil=
kn-affil=Department of Electronics

affil-num=4
en-affil=
kn-affil=Department of Electronics
END

start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=1
article-no=
start-page=21
end-page=30
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1982
dt-pub=19820301
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Improvement of Etalon-fringe Immunity in Diode-laser Derivative Spectroscopy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In a sensitive spectrometry with lead-salt diode lasers, etalon-fringe phenomena often intervene in the measured absorption spectrum. Derivative methods are employed for the purpose of high resolution where the pertaining wavelength is modulated. This paper presents results of mathematical examination on a possible improvement of immunity from the etalon-fringes by choosing the profile of the wavelength modulation.
en-copyright=
kn-copyright=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KosakaMegumi
en-aut-sei=Kosaka
en-aut-mei=Megumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=SanoHiroya
en-aut-sei=Sano
en-aut-mei=Hiroya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electronics

affil-num=2
en-affil=
kn-affil=Department of Electronics

affil-num=3
en-affil=
kn-affil=Department of Electronics
END

start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=2
article-no=
start-page=13
end-page=22
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1985
dt-pub=19850225
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Quasi-random Scanning of a Digitally Controlled Spectrometry
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A quasi-random method for spectral scanning is proposed to reduce an alias response to a quick change in the source abundance. A direct application is made for an atmospheric methane monitoring with a current-tunable diode laser. Only barrel shift methods are examined being found further vulnerable to drifting etalon fringes.
en-copyright=
kn-copyright=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=ŒΓ‰κ—²Ž‘
kn-aut-sei=ŒΓ‰κ
kn-aut-mei=—²Ž‘
aut-affil-num=1
ORCID=

en-aut-name=KosakaMegumi
en-aut-sei=Kosaka
en-aut-mei=Megumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=SanoHiroya
en-aut-sei=Sano
en-aut-mei=Hiroya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electronics

affil-num=2
en-affil=
kn-affil=Department of Electronics

affil-num=3
en-affil=
kn-affil=Faculty of Engineering, Fukuyama University
END