A. Nagakubo, K. Kanai, H. Tamura, A. Tange, and H. Ogi,
"Variable repetition frequency asynchronous optical sampling method without a feedback loop" AIP Adv. 12, 045323 (2022).
K. Tojo, A. Nagakubo, and H. Ogi,
"The angular dependence of magnetization dynamics induced by a GHz range strain pulse" Jpn. J. Appl. Phys. 61, SG1007 (2022).
H. Fukuda, A. Nagakubo, and H. Ogi,
"Elastic constant of dielectric nano-thin films using three-layer resonance studied by picosecond ultrasonics" Jpn. J. Appl. Phys. 60, SDDA05 (2021).
A. Nagakubo, H. T. Lee, H. Ogi, T. Moriyama, and T. Ono,
"Elastic constants of beta tungsten thin films studied by picosecond ultrasonics and density functional theory" Appl. Phys. Lett. 116, 021901 (2020).
A. Nagakubo, K. Adachi, T. Nishihara, and H. Ogi,
"GHz-range resonant ultrasound spectroscopy for a free-standing nano film studied by picosecond ultrasonics" Appl. Phys. Express 13, 016504 (2020).
A. Nagakubo, S. Tsuboi, Y. Kabe, S. Matsuda, A. Koreeda, Y. Fujii, and H. Ogi,
"Zero temperature coefficient of sound velocity in vitreous silicon oxynitride thin films" Appl. Phys. Lett. 114, 251905 (2019).
A. Nagakubo, M. Arita, H. Ogi, H. Sumiya, N. Nakamura, and M. Hirao
"Elastic constant C11 of 12C diamond between 10 and 613 K" Appl. Phys. Lett. 108, 221902 (2016).
A. Nagakubo, H. Ogi, and M. Hirao
"Refractive index and extinction coefficient of Si at 400 nm between 10 and 300 K" Jpn. J. Appl. Phys. 54, 128001 (2015).
A. Nagakubo, H. Ogi, H. Ishida, M. Hirao, T. Yokoyama, and T. Nishihara
"Temperature behavior of sound velocity of fluorine-doped vitreous silica thin films studied by picosecond ultrasonics" J. Appl. Phys. 118, 014307 (2015).
A. Nagakubo, M. Arita, T. Yokoyama, S. Matsuda, M. Ueda, H. Ogi, and M. Hirao
"Acoustic properties of co-doped AlN thin films at low temperatures studied by picosecond ultrasonics" Jpn. J. Appl. Phys. 54, 07HD01 (2015).
A. Nagakubo, H. Ogi, H. Sumiya, and M. Hirao
"Elasticity and hardness of nano-polycrystalline boron nitrides: The apparent Hall-Petch effect" Appl. Phys. Lett. 105, 081906 (2014).
A. Nagakubo, H. Ogi, H. Sumiya, K. Kusakabe, and M. Hirao
"Elastic constants of cubic and wurtzite boron nitrides" Appl. Phys. Lett. 102, 241909 (2013).
A. Nagakubo, A. Yamamoto, K. Tanigaki, H. Ogi, N. Nakamura, and M. Hirao
"Monitoring of the Low-Temperature Phase Transitions of SrTiO3 Using Picosecond Ultrasound Spectroscopy" Jpn. J. Appl. Phys. 51, 07GA09 (2012).
A. Nagakubo, K. Tanigaki, H. Ogi, M. Hirao, H. Sumiya and K. Harano
"Picosecond Ultrasound Spectroscopy for High Purity Boron Nitrides" Proceedings of ATEM’11, OS02F023 (2011).
共著論文
N. Fujiwara, S. Y. Tan, T. Matsumoto, A. Nagakubo, M. Kinooka, and and H. Ogi,
"Development of a focused-ultrasound spectroscopic-imaging system combined with optical imaging for applying mechanical stimulation on living cells and the possibility of selective stimulation for the nucleus" Jpn. J. Appl. Phys. 63, 03SP65 (2024).
W. Yuan, A. Nagakubo, O. B. Wright, and H. Ogi,
"GHz surface-wave phononic crystal biosensor using a Fano resonance at the bandgap edge" Jpn. J. Appl. Phys. 63, 017006 (2024).
H. Fukuda, A. Nagakubo, S. Usami, M. Imanishi, Y. Mori, and H. Ogi,
"Elastic constants of GaN grown by the oxide vapor phase epitaxy method" Appl. Phys. Express 17, 016501 (2024).
H. Fukuda, A. Nagakubo, O. B. Wright, K. Kyotani, and H. Ogi,
"Deep-Learning-Assisted Resonant Ultrasound Spectroscopy for Cubic Solids" Phys. Rev. Applied 20, 034048 (2023).
W. Yuan, A. Nagakubo, O. B. Wright, and H. Ogi,
"High sensitivity biosensing scheme based on a GHz phononic crystal waveguide" Jpn. J. Appl. Phys. 62, SJ1012 (2023).
H. Fukuda, A. Nagakubo, S. Usami, M. Ikeda, M. Imanishi, M. Yoshimura, Y. Mori, K. Adachi, and H. Ogi,
"Determination of the electron trap level in Fe-doped GaN by phonon-assisted conduction phenomenon" Appl. Phys. Express 15, 071003 (2022).
H. K. Weng, A. Nagakubo, H. Watanabe, and H. Ogi,
"Suppression of Brillouin oscillation in transparent free-standing diamond thin films in picosecond ultrasound" Appl. Phys. Lett. 120, 112203 (2022).
W. Yuan, A. Nagakubo, and H. Ogi,
"Effect of interfacial damping on high-frequency surface wave resonance on a nanostrip-bonded substrate" J. Appl. Phys. 131, 015103 (2022).
H. K. Weng, A. Nagakubo, H. Watanabe, and H. Ogi,
"Lattice thermal conductivity in isotope diamond asymmetric superlattices" Jpn. J. Appl. Phys. 61, SG1004 (2022).
H. K. Weng, A. Nagakubo, H. Ogi, and H. Watanabe,
"Phonon propagation in isotopic diamond superlattices" Phys. Rev. B 104, 054112 (2021).
L. Zhou, F. Kato, N. Nakamura, Y. Oshikane, A. Nagakubo, and H. Ogi,
"MEMS hydrogen gas sensor with wireless quartz crystal resonator" Sensor Actuat. B: Chem. 334, 129651 (2021).
H. K. Weng, A. Nagakubo, H. Watanabe, and H. Ogi,
"Thermal conduction in isotope diamond thin films studied by pump-probe laser reflectivity measurement" Jpn. J. Appl. Phys. 59, SKKA04 (2020).
L. Zhou, N. Nakamura, A. Nagakubo, and H. Ogi,
"Enhancement of sensitivity of Pd-based hydrogen-gas sensor by plasma exposure studied by wireless quartz resonator" Jpn. J. Appl. Phys. 59, SKKB02 (2020).
K. Kusakabe, A. Wake, A. Nagakubo, K. Murashima, M. Murakami, K. Adachi, and H. Ogi,
"Interplanar stiffness in defect-free monocrystalline graphite" Phys. Rev. Materials 4, 043603 (2020).
L. Zhou, N. Nakamura, A. Nagakubo, and H. Ogi
"Highly sensitive hydrogen detection using curvature change of wireless-electrodeless quartz resonators" Appl. Phys. Lett. 115, 171901 (2019).
H. Ogi, S. Iwagami, A. Nagakubo, T. Taniguchi, and T. Ono
"Nano-Plate Biosensor Array Using Ultrafast Heat Transport through Proteins" Sens. Actuat. B: Chemical 278, 15 (2019).
S. Tsuboi, K. Adachi, A. Nagakubo, and H. Ogi
"Theoretical study on elastic properties of Si2N2O by ab-initio calculation" Jpn. J. Appl. Phys., 57, 07LB04 (2018).
E. Oishi, Y. Fujii, D. Katayama, A. Koreeda, A. Nagakubo, and H. Ogi
"Phonon anharmonicity in zirconium tungstate single crystal investigated by broadband light scattering" Jpn. J. Appl. Phys. 56, 10B06 (2017).
H. Ogi, T. Ishihara, H. Ishida, A. Nagakubo, N. Nakamura, and M. Hirao
"Thermal Mode Spectroscopy for Thermal Diffusivity of Millimeter-Size Solids" Phys. Rev. Lett. 117, 195901 (2016).
K. Adachi, H. Ogi, A. Nagakubo, N. Nakamura, M. Hirao, M. Imade, M. Yoshimura, and Y. Mori
"Piezoelectric coefficients of GaN determined by hopping conduction of carriers" Appl. Phys. Lett. 109, 182108 (2016).
K. Adachi, H. Ogi, A. Nagakubo, N. Nakamura, M. Hirao, M. Imade, M. Yoshimura, and Y. Mori
"Elastic constants of GaN between 10 and 305 K" J. Appl. Phys. 119, 245111 (2016).
H. Ogi, S. Masuda, A. Nagakubo, N. Nakamura, M. Hirao, K. Kondou, and T. Ono
"Impact of interface stiffness in surface-wave resonances on nano-strip-attached substrates" Phys. Rev. B 93, 024112 (2016).
H. Ogi, Y. Tsutsui, N. Nakamura, A. Nagakubo, M. Hirao, M. Imade, M. Yoshimura, and Y. Mori
"Hopping conduction and piezoelectricity in Fe-doped GaN studied by non-contacting resonant ultrasound spectroscopy" Appl. Phys. Lett. 106, 091901 (2015).
M. Tane, Y. Okuda, Y. Todaka, H. Ogi, and A. Nagakubo
"Elastic properties of a single-crystalline ω phase in titanium" Acta Mater. 61, 7543 (2013).
"Mechanical properties of nano objects studied by picosecond ultrasonics",
1st(Fri.) Nov. 2019, Institut Teknologi Bandung, Bandung, Indonesia
"フェムト秒パルスレーザーを用いたサブTHzフォノンの励起・検出"
2016年3月8日，京都大学
"Elasticity measurements by Picosecond ultrasound spectroscopy"
18th(Mon.) May 2015, Academy of Sciences of the Czech Republic, Prague, Czech Republic
学会発表
Acoustics 2023 Sydney (185th Meeting of the Acoustical Society of America)
Co-organizer of "Acoustical Measurements and Sensors for Challenging Environments"
4th(Mon.) - 8th(Fri.) Dec. 2023, International Convention Centre Sydney, Sydney, Australia
184th Meeting of the Acoustical Society of America
"In situ monitoring of electromigration in a single nano wire by picosecond ultrasonics"
8th(Mon.) - 12th(Fri.) May. 2023, Chicago Downtown Marriott Magnificent Mile Hotel, Illinois, USA
2022 IEEE International Ultrasonics Symposium
"GHz phonon biosensor using free-standing SiN nanofilm with real-time monitoring by asynchronous optical sampling picosecond ultrasonics"
10th(Mon.) - 13th(Thu.) Oct. 2022, Venice Conference Center, Venice, Italy
2019 IEEE International Ultrasonics Symposium
"Relationship between Temperature Coefficient of Sound Velocity and Bond Angle in Vitreous SiO2-Type Films"
6th(Sun.) - 9th(Wed.) Oct. 2019, SEC, Glasgow, Scotland, UK
2019 International Congress on Ultrasonics
"Time-range controllable asynchronous picosecond ultrasonics with titanium-sapphire pulse lasers"
3rd(Tue.) Sep. - 6th(Fri.) Sep. 2019, Vives Campus Xaverianenstraat, Bruges, Belgium
The 39th Symposium on Ultrasonic Electronics
"Resonance frequencies of AlN and metal freestanding multilayers studied by picosecond ultrasonics"
29th(Mon.) Oct. - 31th(Wed.) Oct. 2018, Doshisha University, Kyoto, Japan
2017 International Congress on Ultrasonics
"Guide wave excitation and detection in a single nanowire"
18th(Mon.) Dec. - 20th(Wed.) Dec. 2017, Hawaii Convention Center, Honolulu, USA
The 38th Symposium on Ultrasonic Electronics
"Elastic constant of alpha and beta tungsten films studied by picosecond ultrasonics"
25th(Wed.) Oct. - 27th(Fri.) Oct. 2017, Tagajo City Cultural Center, Miyagi, Japan
5th Joint Meeting of the Acoustical Society of America and Acoustical Society of Japan
"Discussion on very small temperature dependence of diamond's elastic constants"
28th(Mon.) Nov. - 2nd(Fri.) Dec. 2016, Hilton Hawaiian Village Waikiki Beach Resort, Honolulu, USA
The 37th Symposium on Ultrasonic Electronics
"Wave-propagation properties of alpha and beta Lanthanum studied by ab-initio calculations"
16th(Wed.) - 18th(Fri.) Nov. 2016, Pukyong National University, Busan, Korea
The 36th Symposium on Ultrasonic Electronics
"Guided wave propagation in a 2-D patterned nano-bridge studied by picosecond ultrasonics"
5th(Thurs.) - 7th(Sat.) Nov. 2015, Epochal Tsukuba, Ibaraki, Japan
9th International Conference on New Diamond and Nano Carbons 2015
"The apparent Hall-Petch effect of nano-polycrystalline cubic boron nitrides"
24th(Sun.) - 28th(Thurs.) May 2015, Shizuoka GRANSHIP, Shizuoka, Japan
2015 International Congress on Ultrasonics
"Precise measurement of sound velocity of amorphous silica at low temperatures by picosecond ultrasounds: correction of static heating effect"
10th(Sun.) - 14th(Thurs.) May 2015, Arsenal, Metz, Flance
TMS (The Minerals, Metals and Materials Society) 2015, 144th annual Meeting
"Elastic stiffness of cubic and wurtzite boron nitride"
15th(Mon.) - 19th(Thurs.) March 2015, Walt Disney World Swan and Dolphin Resort, Orland, Florida, USA
The 35th Symposium on Ultrasonic Electronics
"Acoustic properties of co-doped AlN thin films at low temperatures studied by picosecond ultrasonics"
3rd(Wed.) - 5th(Fri.) Dec. 2014, Meiji University, Tokyo, Japan （奨励賞受賞）
2014 IEEE International Ultrasonics Symposium
"Temperature coefficients of fluorine-doped amorphous-SiO2 thin films measured by picosecond ultrasonics"
3rd(Thurs.) - 6th(Mon.) September 2014, Hilton Hotel Chicago, Chicago, Illinois, USA
The 34th Symposium on Ultrasonic Electronics
"Acoustic properties of fluorine-doped silica-glass thin films at low temperatures"
20th(Wed.) - 22th(Fri.) Nov. 2013, Doshisha University, Kyoto, Japan
2013 International Congress on Ultrasonics
"Measurement and Calculation of Elastic Constants of Boron Nitrides"
2nd(Wed.) - 5th(Sun.) May 2013, Grand Copthorne Waterfront Hotel, Singapore, Singapore
The 33rd Symposium on Ultrasonic Electronics
"Sub-terahertz-frequency attenuation and sound velocity of GaN at Cryogenic Temperatures Studied by Picosecond Ultrasound Spectroscopy"
13th(Tue.) - 15th(Thurs.) Nov. 2012, Chiba University, Chiba, Japan
Quantitative Nondestructive Evaluation (QNDE) 2012
"Study of Phase Transition in SrTiO3 Using Ultrasonic Attenuation at Sub-Terahertz Region"
15th(Mon.) - 20th(Fri.) July. 2012, Hyatt Regency Denver Tech Center, Denver, Colorado, USA
Materials Research Society(MRS) Fall Meeting 2011
"Elastic Constants of Boron Nitrides at Cryogenic Temperature"
28th(Mon.) Nov. - 2nd(Fri.) Dec. 2011, Hynes Convention Center, Boston, Massachusetts, USA
The 32nd Symposium on Ultrasonic Electronics
"Monitoring of sound velocity and attenuation in SrTiO3 across the phase transition at low temperature using picosecond ultrasonics"
8th(Tue.) - 10th(Thurs.) Nov. 2011, Kyoto University, Kyoto, Japan
International Conference on Advanced Technology in Experimental Mechanics 2011 The 10 th Annual Conference of the Asian Society on Experimental Mechanics (ATEM10)
"Picosecond Ultrasound Spectroscopy for High Purity Boron Nitrides"
19th(Mon.) - 21th(Wed.) Sep. 2011, Kobe International Conference Center, Kobe, Japan
5th International Conference on New Diamond and Nano Carbons 2011
"Elasticity of High Purity Boron Nitrides at Cryogenic Temperatures Studied by Picosecond Laser Ultrasound and ab-initio Calculation"
16th(Mon.) - 20th(Fri.) May 2011, Kunibiki Messe, Shimane, Japan
