1-18 of 18
Tetsuomi Sogawa
Close
Save search
Follow your search
Access your saved searches in your account
Close Modal
Sort by
Journal Articles

Octave-spanning supercontinuum generation at telecommunications wavelengths in a precisely dispersion- and length-controlled silicon-wire waveguide with a double taper structure

Atsushi Ishizawa, Takahiro Goto, Rai Kou, Tai Tsuchizawa, Nobuyuki Matsuda, Kenichi Hitachi, Tadashi Nishikawa, Koji Yamada, Tetsuomi Sogawa, Hideki Gotoh
Journal: Applied Physics Letters
Appl. Phys. Lett. 111, 021105 (2017)
https://doi.org/10.1063/1.4992112
Published: July 2017
View article titled, Octave-spanning supercontinuum generation at telecommunications wavelengths in a precisely dispersion- and length-controlled silicon-wire waveguide with a double taper structure
Open the PDF for Octave-spanning supercontinuum generation at telecommunications wavelengths in a precisely dispersion- and length-controlled silicon-wire waveguide with a double taper structure in another window
Journal Articles

Determination of phonon decay rate in p-type silicon under Fano resonance by measurement of coherent phonons

Keiko Kato, Katsuya Oguri, Haruki Sanada, Takehiko Tawara, Tetsuomi Sogawa, Hideki Gotoh
Journal: AIP Advances
AIP Advances 5, 097152 (2015)
https://doi.org/10.1063/1.4931393
Published: September 2015
View article titled, Determination of phonon decay rate in p-type silicon under Fano resonance by measurement of coherent phonons
Open the PDF for Determination of phonon decay rate in p-type silicon under Fano resonance by measurement of coherent phonons in another window
Journal Articles

Nonlinear optical spectra having characteristics of Fano interferences in coherently coupled lowest exciton biexciton states in semiconductor quantum dots

Hideki Gotoh, Haruki Sanada, Hiroshi Yamaguchi, Tetsuomi Sogawa
Journal: AIP Advances
AIP Advances 4, 107124 (2014)
https://doi.org/10.1063/1.4898642
Published: October 2014
View article titled, Nonlinear optical spectra having characteristics of Fano interferences in coherently coupled lowest exciton biexciton states in semiconductor quantum dots
Open the PDF for Nonlinear optical spectra having characteristics of Fano interferences in coherently coupled lowest exciton biexciton states in semiconductor quantum dots in another window
Journal Articles

Encapsulated gate-all-around InAs nanowire field-effect transistors

Satoshi Sasaki, Kouta Tateno, Guoqiang Zhang, Henri Suominen, Yuichi Harada, Shiro Saito, Akira Fujiwara, Tetsuomi Sogawa, Koji Muraki
Journal: Applied Physics Letters
Appl. Phys. Lett. 103, 213502 (2013)
https://doi.org/10.1063/1.4832058
Published: November 2013
View article titled, Encapsulated gate-all-around InAs nanowire field-effect transistors
Open the PDF for Encapsulated gate-all-around InAs nanowire field-effect transistors in another window
Journal Articles

Modifying exciton optical properties in quantum dots with coherent phonons induced by ultrafast optical pulses

Hideki Gotoh, Haruki Sanada, Hiroshi Yamaguchi, Tetsuomi Sogawa
Journal: Applied Physics Letters
Appl. Phys. Lett. 103, 112104 (2013)
https://doi.org/10.1063/1.4821198
Published: September 2013
View article titled, Modifying exciton optical properties in quantum dots with coherent phonons induced by ultrafast optical pulses
Open the PDF for Modifying exciton optical properties in quantum dots with coherent phonons induced by ultrafast optical pulses in another window
Journal Articles

Au-free InAs nanowires grown in In-particle-assisted vapor-liquid-solid mode: growth, structure, and electrical property

Guoqiang Zhang, Satoshi Sasaki, Kouta Tateno, Hideki Gotoh, Tetsuomi Sogawa
Journal: AIP Advances
AIP Advances 3, 052107 (2013)
https://doi.org/10.1063/1.4804542
Published: May 2013
View article titled, Au-free InAs nanowires grown in In-particle-assisted vapor-liquid-solid mode: growth, structure, and electrical property
Open the PDF for Au-free InAs nanowires grown in In-particle-assisted vapor-liquid-solid mode: growth, structure, and electrical property in another window
Journal Articles

Attosecond pulse generation in carbon K-edge region (284 eV) with sub-250 μJ driving laser using generalized double optical gating method

Hiroki Mashiko, Katsuya Oguri, Tetsuomi Sogawa
Journal: Applied Physics Letters
Appl. Phys. Lett. 102, 171111 (2013)
https://doi.org/10.1063/1.4803936
Published: May 2013
View article titled, Attosecond pulse generation in carbon K-edge region (284 eV) with sub-250 <em>μ</em>J driving laser using generalized double optical gating method
Open the PDF for Attosecond pulse generation in carbon K-edge region (284 eV) with sub-250 <em>μ</em>J driving laser using generalized double optical gating method in another window
Journal Articles

Optomechanical photoabsorption spectroscopy of exciton states in GaAs

Takayuki Watanabe, Hajime Okamoto, Koji Onomitsu, Hideki Gotoh, Tetsuomi Sogawa, Hiroshi Yamaguchi
Journal: Applied Physics Letters
Appl. Phys. Lett. 101, 082107 (2012)
https://doi.org/10.1063/1.4747328
Published: August 2012
View article titled, Optomechanical photoabsorption spectroscopy of exciton states in GaAs
Open the PDF for Optomechanical photoabsorption spectroscopy of exciton states in GaAs in another window
Journal Articles

Charged exciton creation with two-color optical excitation method and analysis of initialization process of electron spin qubit in quantum dots

Hideki Gotoh, Haruki Sanada, Hiroshi Yamaguchi, Tetsuomi Sogawa
Journal: Journal of Applied Physics
J. Appl. Phys. 111, 123520 (2012)
https://doi.org/10.1063/1.4730602
Published: June 2012
View article titled, Charged exciton creation with two-color optical excitation method and analysis of initialization process of electron spin qubit in quantum dots
Open the PDF for Charged exciton creation with two-color optical excitation method and analysis of initialization process of electron spin qubit in quantum dots in another window
Journal Articles

Ultrafast carrier and coherent phonon dynamics in semi-insulated and n-type 4H-SiC

Keiko Kato, Katsuya Oguri, Atsushi Ishizawa, Hidetoshi Nakano, Tetsuomi Sogawa
Journal: Journal of Applied Physics
J. Appl. Phys. 111, 113520 (2012)
https://doi.org/10.1063/1.4725479
Published: June 2012
View article titled, Ultrafast carrier and coherent phonon dynamics in semi-insulated and n-type 4H-SiC
Open the PDF for Ultrafast carrier and coherent phonon dynamics in semi-insulated and n-type 4H-SiC in another window
Journal Articles

Spatially modulated photoluminescence properties in dynamically strained GaAs/AlAs quantum wells by surface acoustic wave

Tetsuomi Sogawa, Haruki Sanada, Hideki Gotoh, Hiroshi Yamaguchi, Paulo V. Santos
Journal: Applied Physics Letters
Appl. Phys. Lett. 100, 162109 (2012)
https://doi.org/10.1063/1.3703309
Published: April 2012
View article titled, Spatially modulated photoluminescence properties in dynamically strained GaAs/AlAs quantum wells by surface acoustic wave
Open the PDF for Spatially modulated photoluminescence properties in dynamically strained GaAs/AlAs quantum wells by surface acoustic wave in another window
Journal Articles

Proposal of spin complementary field effect transistor

Yoji Kunihashi, Makoto Kohda, Haruki Sanada, Hideki Gotoh, Tetsuomi Sogawa, Junsaku Nitta
Journal: Applied Physics Letters
Appl. Phys. Lett. 100, 113502 (2012)
https://doi.org/10.1063/1.3689753
Published: March 2012
View article titled, Proposal of spin complementary field effect transistor
Open the PDF for Proposal of spin complementary field effect transistor in another window
Journal Articles

Doping-type dependence of phonon dephasing dynamics in Si

Keiko Kato, Katsuya Oguri, Atsushi Ishizawa, Kouta Tateno, Takehiko Tawara, Hideki Gotoh, Masahiro Kitajima, Hidetoshi Nakano, Tetsuomi Sogawa
Journal: Applied Physics Letters
Appl. Phys. Lett. 98, 141904 (2011)
https://doi.org/10.1063/1.3574533
Published: April 2011
View article titled, Doping-type dependence of phonon dephasing dynamics in Si
Open the PDF for Doping-type dependence of phonon dephasing dynamics in Si in another window
Journal Articles

Creation of charged excitons with two-color excitation method and initialization of electron spin qubit in quantum dots

Hideki Gotoh, Haruki Sanada, Hidehiko Kamada, Hiroshi Yamaguchi, Tetsuomi Sogawa
Journal: Applied Physics Letters
Appl. Phys. Lett. 98, 032101 (2011)
https://doi.org/10.1063/1.3543841
Published: January 2011
View article titled, Creation of charged excitons with two-color excitation method and initialization of electron spin qubit in quantum dots
Open the PDF for Creation of charged excitons with two-color excitation method and initialization of electron spin qubit in quantum dots in another window
Journal Articles

Observation of coherent phonons in metallic carbon nanotubes

Keiko Kato, Katsuya Oguri, Atsushi Ishizawa, Hideki Gotoh, Hidetoshi Nakano, Tetsuomi Sogawa
Journal: Applied Physics Letters
Appl. Phys. Lett. 97, 121910 (2010)
https://doi.org/10.1063/1.3491220
Published: September 2010
View article titled, Observation of coherent phonons in metallic carbon nanotubes
Open the PDF for Observation of coherent phonons in metallic carbon nanotubes in another window
Journal Articles

Photoluminescence dynamics in GaAs/AlAs quantum wells modulated by one-dimensional standing surface acoustic waves

Tetsuomi Sogawa, Haruki Sanada, Hideki Gotoh, Hiroshi Yamaguchi, Sen Miyashita, Paulo V. Santos
Journal: Applied Physics Letters
Appl. Phys. Lett. 94, 131912 (2009)
https://doi.org/10.1063/1.3114382
Published: April 2009
View article titled, Photoluminescence dynamics in GaAs/AlAs quantum wells modulated by one-dimensional standing surface acoustic waves
Open the PDF for Photoluminescence dynamics in GaAs/AlAs quantum wells modulated by one-dimensional standing surface acoustic waves in another window
Journal Articles

Dimensional oscillation in Ga As ∕ Al As quantum wells by two-dimensional standing surface acoustic waves

Tetsuomi Sogawa, Hideki Gotoh, Yoshiro Hirayama, Paulo V. Santos, Klaus H. Ploog
Journal: Applied Physics Letters
Appl. Phys. Lett. 91, 141917 (2007)
https://doi.org/10.1063/1.2790804
Published: October 2007
View article titled, Dimensional oscillation in Ga As ∕ Al As quantum wells by two-dimensional standing surface acoustic waves
Open the PDF for Dimensional oscillation in Ga As ∕ Al As quantum wells by two-dimensional standing surface acoustic waves in another window
Journal Articles

Dimensionality Control in GaAs Quantum Wells Dynamically‐Modulated by Surface Acoustic Waves

Tetsuomi Sogawa, Hideki Gotoh, Yoshiro Hirayama, Tadashi Saku, Sen Miyashita, Paulo V. Santos, Klaus H. Ploog
Journal: AIP Conference Proceedings
AIP Conf. Proc. 893, 527–528 (2007)
https://doi.org/10.1063/1.2729998
Published: April 2007
View article titled, Dimensionality Control in GaAs Quantum Wells Dynamically‐Modulated by Surface Acoustic Waves
Open the PDF for Dimensionality Control in GaAs Quantum Wells Dynamically‐Modulated by Surface Acoustic Waves in another window