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Masaaki Nakayama
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Journal Articles

Ultrafast dynamics of coherent optical phonon correlated with the antiferromagnetic transition in a hexagonal YMnO3 epitaxial film

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Takayuki Hasegawa, Norifumi Fujimura, Masaaki Nakayama
Journal: Applied Physics Letters
Appl. Phys. Lett. 111, 192901 (2017)
https://doi.org/10.1063/1.5003269
Published: November 2017
View article titled, Ultrafast dynamics of coherent optical phonon correlated with the antiferromagnetic transition in a hexagonal YMnO3 epitaxial film
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Journal Articles

Effects of photogenerated carrier scattering on the decay process of coherent longitudinal optical phonons in an undoped GaAs/n-type GaAs epitaxial structure investigated by terahertz time-domain spectroscopy

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Hideo Takeuchi, Takahiro Sumioka, Masaaki Nakayama
Journal: Journal of Vacuum Science & Technology A
J. Vac. Sci. Technol. A 35, 04D104 (2017)
https://doi.org/10.1116/1.4983637
Published: May 2017
View article titled, Effects of photogenerated carrier scattering on the decay process of coherent longitudinal optical phonons in an undoped GaAs/n-type GaAs epitaxial structure investigated by terahertz time-domain spectroscopy
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Journal Articles

Systematic investigation of effects of exciton–acoustic-phonon scattering on photoluminescence rise times of free excitons in GaAs/Al0.3Ga0.7As single quantum wells

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Masaaki Nakayama, Tatsuya Ohno, Yoshiaki Furukawa
Journal: Journal of Applied Physics
J. Appl. Phys. 117, 134306 (2015)
https://doi.org/10.1063/1.4916982
Published: April 2015
View article titled, Systematic investigation of effects of exciton–acoustic-phonon scattering on photoluminescence rise times of free excitons in GaAs/Al0.3Ga0.7As single quantum wells
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Journal Articles

Unique properties of photoluminescence excitation spectra in a Eu-doped GaN epitaxial film

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Masaaki Nakayama, Satoshi Nakamura, Hideo Takeuchi, Atsushi Koizumi, Yasufumi Fujiwara
Journal: Applied Physics Letters
Appl. Phys. Lett. 106, 012102 (2015)
https://doi.org/10.1063/1.4905309
Published: January 2015
View article titled, Unique properties of photoluminescence excitation spectra in a Eu-doped GaN epitaxial film
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Journal Articles

Photoluminescence characteristics of polariton condensation in a CuBr microcavity

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Masaaki Nakayama, Katsuya Murakami, Yoshiaki Furukawa, DaeGwi Kim
Journal: Applied Physics Letters
Appl. Phys. Lett. 105, 021903 (2014)
https://doi.org/10.1063/1.4890216
Published: July 2014
View article titled, Photoluminescence characteristics of polariton condensation in a CuBr microcavity
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Journal Articles

Precise control of photoluminescence enhancement and quenching of semiconductor quantum dots using localized surface plasmons in metal nanoparticles

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DaeGwi Kim, Hiroki Yokota, Taichi Taniguchi, Masaaki Nakayama
Journal: Journal of Applied Physics
J. Appl. Phys. 114, 154307 (2013)
https://doi.org/10.1063/1.4826188
Published: October 2013
View article titled, Precise control of photoluminescence enhancement and quenching of semiconductor quantum dots using localized surface plasmons in metal nanoparticles
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Journal Articles

Voltage-controllable terahertz radiation from coherent longitudinal optical phonons in a p-i-n diode structure of GaAs

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Masaaki Nakayama, Souta Asai, Hideo Takeuchi, Osamu Ichikawa, Masahiko Hata
Journal: Applied Physics Letters
Appl. Phys. Lett. 103, 141109 (2013)
https://doi.org/10.1063/1.4823595
Published: October 2013
View article titled, Voltage-controllable terahertz radiation from coherent longitudinal optical phonons in a p-i-n diode structure of GaAs
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Journal Articles

Characteristics of ultrafast optical responses originating from non-equilibrium carrier transport in undoped GaAs/n-type GaAs epitaxial structures

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Takayuki Hasegawa, Yoshihiro Takagi, Hideo Takeuchi, Hisashi Yamada, Masahiko Hata, Masaaki Nakayama
Journal: Journal of Applied Physics
J. Appl. Phys. 113, 203506 (2013)
https://doi.org/10.1063/1.4807405
Published: May 2013
View article titled, Characteristics of ultrafast optical responses originating from non-equilibrium carrier transport in undoped GaAs/n-type GaAs epitaxial structures
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Journal Articles

Enhancement mechanism of terahertz radiation from coherent longitudinal optical phonons in undoped GaAs/n-type GaAs epitaxial structures

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Shuichi Tsuruta, Hideo Takeuchi, Hisashi Yamada, Masahiko Hata, Masaaki Nakayama
Journal: Journal of Applied Physics
J. Appl. Phys. 113, 143502 (2013)
https://doi.org/10.1063/1.4799060
Published: April 2013
View article titled, Enhancement mechanism of terahertz radiation from coherent longitudinal optical phonons in undoped GaAs/n-type GaAs epitaxial structures
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Journal Articles

Dynamical characteristics of a coherent longitudinal optical phonon in a GaAs buffer layer optically covered with a GaSb top epitaxial layer investigated with use of terahertz spectroscopy

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Hideo Takeuchi, Shuichi Tsuruta, Masaaki Nakayama
Journal: AIP Conference Proceedings
AIP Conf. Proc. 1506, 73–78 (2012)
https://doi.org/10.1063/1.4772529
Published: December 2012
View article titled, Dynamical characteristics of a coherent longitudinal optical phonon in a GaAs buffer layer optically covered with a GaSb top epitaxial layer investigated with use of terahertz spectroscopy
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Journal Articles

Temperature dependence of cavity-polariton energies in ZnO and CuCl microcavities

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Toshiki Kawase, Kenichi Miyazaki, Daegwi Kim, Masaaki Nakayama
Journal: Journal of Applied Physics
J. Appl. Phys. 112, 093512 (2012)
https://doi.org/10.1063/1.4764327
Published: November 2012
View article titled, Temperature dependence of cavity-polariton energies in ZnO and CuCl microcavities
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Journal Articles

Quantum beats of type-I and type-II excitons in an InxGa1−xAs/GaAs strained single quantum well

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Osamu Kojima, Kohji Mizoguchi, Masaaki Nakayama
Journal: Journal of Applied Physics
J. Appl. Phys. 112, 043522 (2012)
https://doi.org/10.1063/1.4748339
Published: August 2012
View article titled, Quantum beats of type-I and type-II excitons in an InxGa1−xAs/GaAs strained single quantum well
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Journal Articles

Intense monochromatic terahertz electromagnetic waves from coherent GaAs-like longitudinal optical phonons in (11n)-oriented GaAs/In0.1Al0.9As strained multiple quantum wells

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Hideo Takeuchi, Souta Asai, Syuichi Tsuruta, Masaaki Nakayama
Journal: Applied Physics Letters
Appl. Phys. Lett. 100, 242107 (2012)
https://doi.org/10.1063/1.4729125
Published: June 2012
View article titled, Intense monochromatic terahertz electromagnetic waves from coherent GaAs-like longitudinal optical phonons in (11n)-oriented GaAs/In0.1Al0.9As strained multiple quantum wells
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Journal Articles

Ultrafast optical response originating from carrier-transport processes in undoped GaAs/n-type GaAs epitaxial structures

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Takayuki Hasegawa, Yoshihiro Takagi, Hideo Takeuchi, Hisashi Yamada, Masahiko Hata, Masaaki Nakayama
Journal: Applied Physics Letters
Appl. Phys. Lett. 100, 211902 (2012)
https://doi.org/10.1063/1.4720157
Published: May 2012
View article titled, Ultrafast optical response originating from carrier-transport processes in undoped GaAs/n-type GaAs epitaxial structures
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Journal Articles

Detection of a Coherent Longitudinal Optical Phonon in a GaAs Buffer Layer Optically Covered with a GaSb Top Epitaxial Layer Using Terahertz Spectroscopy

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Hideo Takeuchi, Syuichi Tsuruta, Masaaki Nakayama
Journal: AIP Conference Proceedings
AIP Conf. Proc. 1416, 84–87 (2011)
https://doi.org/10.1063/1.3671704
Published: December 2011
View article titled, Detection of a Coherent Longitudinal Optical Phonon in a GaAs Buffer Layer Optically Covered with a GaSb Top Epitaxial Layer Using Terahertz Spectroscopy
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Journal Articles

Terahertz spectroscopy of dynamics of coupling between the coherent longitudinal optical phonon and plasmon in the surge current of instantaneously photogenerated carriers flowing through the i-GaAs layer of an i-GaAs/n-GaAs epitaxial structure

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Hideo Takeuchi, Syuichi Tsuruta, Masaaki Nakayama
Journal: Journal of Applied Physics
J. Appl. Phys. 110, 013515 (2011)
https://doi.org/10.1063/1.3603046
Published: July 2011
View article titled, Terahertz spectroscopy of dynamics of coupling between the coherent longitudinal optical phonon and plasmon in the surge current of instantaneously photogenerated carriers flowing through the i-GaAs layer of an i-GaAs/n-GaAs epitaxial structure
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Journal Articles

Emission of the terahertz electromagnetic wave from coherent longitudinal optical phonons in a GaAs buffer layer optically masked by a GaSb top epitaxial layer

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Hideo Takeuchi, Syuichi Tsuruta, Masaaki Nakayama
Journal: Applied Physics Letters
Appl. Phys. Lett. 98, 151905 (2011)
https://doi.org/10.1063/1.3574541
Published: April 2011
View article titled, Emission of the terahertz electromagnetic wave from coherent longitudinal optical phonons in a GaAs buffer layer optically masked by a GaSb top epitaxial layer
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Journal Articles

Effects of nitrogen incorporation on a direction of a surface band bending investigated by polarity of terahertz electromagnetic waves in GaAs 1 − x N x epitaxial layers

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Hideo Takeuchi, Junichi Yanagisawa, Jun Hashimoto, Masaaki Nakayama
Journal: Journal of Applied Physics
J. Appl. Phys. 105, 093539 (2009)
https://doi.org/10.1063/1.3125451
Published: May 2009
View article titled, Effects of nitrogen incorporation on a direction of a surface band bending investigated by polarity of terahertz electromagnetic waves in GaAs 1 − x N x epitaxial layers
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Journal Articles

Enhanced terahertz emission from coherent longitudinal optical phonons in a quantum well structure under applied bias

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Kohji Mizoguchi, Yusuke Kanzawa, Shingo Saito, Kiyomi Sakai, Masaaki Nakayama
Journal: Applied Physics Letters
Appl. Phys. Lett. 94, 171105 (2009)
https://doi.org/10.1063/1.3126446
Published: April 2009
View article titled, Enhanced terahertz emission from coherent longitudinal optical phonons in a quantum well structure under applied bias
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Journal Articles

Enhancement of terahertz electromagnetic wave emission from an undoped Ga As ∕ n -type GaAs epitaxial layer structure

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Hideo Takeuchi, Junichi Yanagisawa, Takayuki Hasegawa, Masaaki Nakayama
Journal: Applied Physics Letters
Appl. Phys. Lett. 93, 081916 (2008)
https://doi.org/10.1063/1.2976436
Published: August 2008
View article titled, Enhancement of terahertz electromagnetic wave emission from an undoped Ga As ∕ n -type GaAs epitaxial layer structure
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