Press Release

Publications in 2017

  1. K. Takase, Y. Ashikawa, G. Zhang, K. Tateno, and S. Sasaki

    Highly gate-tuneable Rashba spin-orbit interaction in a gate-all-around InAs nanowire metal-oxide-semiconductor field-effect transistor

    Sci Rep 7, 930 (2017).

  2. H. A. Hafez, X. Chai, Y. Sekine, M. Takamura, K. Oguri, I. Al-Naib, M. M. Dignam, H. Hibino, and T. Ozaki

    Effects of environmental conditions on the ultrafast carrier dynamics in graphene revealed by terahertz spectroscopy

    Phys. Rev. B 95 (16), 165428 (2017).

  3. A. Ishizawa, R. Kou, T. Goto, T. Tsuchizawa, N. Matsuda, K. Hitachi, T. Nishikawa, K. Yamada, T. Sogawa, and H. Gotoh

    Optical nonlinearity enhancement with graphene-decorated silicon waveguides

    Sci Rep 7, 45520 (2017).

  4. T. Tawara, G. Mariani, K. Shimizu, H. Omi, S. Adachi, and H. Gotoh

    Effect of isotopic purification on spectral-hole narrowing in Er-167(3+) hyperfine transitions

    Appl. Phys. Express 10 (4), 042801 (2017).

  5. T. Tawara, Y. Kawakami, H. Omi, R. Kaji, S. Adachi, and H. Gotoh

    Mechanism of concentration quenching in epitaxial (ErxSc1-x)(2)O-3 thin layers

    Opt. Mater. Express 7 (3) 1097-1104 (2017).

  6. A. Yokoo, M. Takiguchi, M. D. Birowosuto, K. Tateno, G. Q. Zhang, E. Kuramochi, A. Shinya, H. Taniyama, and M. Notomi

    Subwavelength Nanowire Lasers on a Silicon Photonic Crystal Operating at Telecom Wavelengths

    ACS Photonics 4 (2) 355-362 (2017).

Publications in 2016

  1. H. Mashiko, K. Oguri, T. Yamaguchi, A. Suda and H. Gotoh

    Petahertz optical drive with wide-bandgap semiconductor

    Nat. Phys. 12 (8), 741-745 (2016).

  2. A. Ishizawa, T. Nishikawa, T. Goto, K. Hitachi, T. Sogawa and H. Gotoh

    Ultralow-phase-noise millimetre-wave signal generator assisted with an electro-optics-modulator-based optical frequency comb

    Sci Rep. 6 24621 (2016).

  3. R. Ohsugi, Y. Kunihashi, H. Sanada, M. Kohda, H. Gotoh, T. Sogawa and J. Nitta

    Bias dependence of spin injection/transport properties of a perpendicularly magnetized FePt/MgO/GaAs structure

    Appl. Phys. Express 9 (4), 043002 (2016).

  4. Y. Kunihashi, H. Sanada, H. Gotoh, K. Onomitsu, M. Kohda, J. Nitta and T. Sogawa

    Drift transport of helical spin coherence with tailored spin-orbit interactions

    Nat. Commun. 7 10722 (2016).

  5. K. Kato, F. Furrer and M. Murao

    Information-theoretical analysis of topological entanglement entropy and multipartite correlations

    Phys. Rev. A 93 (2), 022317 (2016).

  6. M. Ono, E. Kuramochi, G. Q. Zhang, H. Sumikura, Y. Harada, D. Cox and M. Notomi

    Nanowire-nanoantenna coupled system fabricated by nanomanipulation

    Opt. Express 24 (8), 8647-8659 (2016).

  7. A. Morinaga, M. Murakami, K. Nakamura, and H. Imai

    Scalar Aharonov-Bohm Phase in Ramsey Atom Interferometry under Time-Varying Potential

    Atoms 4 (3), 23 (2016).

Publications in 2015

  1. G. Zhang, C. Rainville, A. Salmon, M. Takiguchi, K. Tateno and H. Gotoh

    Bridging the Gap between the Nanometer-Scale Bottom-Up and Micrometer-Scale Top-Down Approaches for Site-Defined InP/InAs Nanowires

    ACS Nano 9, 10580-10589 (2015).

  2. K. Kato, K. Oguri, H. Sanada, T. Tawara, T. Sogawa and H. Gotoh

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

    AIP Adv. 5, 097152 (2015).

  3. K. Hitachi, A. Ishizawa, O. Tadanaga, T. Nishikawa, H. Mashiko, T. Sogawa and H. Gotoh

    Frequency stabilization of an Er-doped fiber laser with a collinear 2f-to-3f self-referencing interferometer

    Appl. Phys. Lett. 106, 231106 (2015).

  4. H. Okamoto, T. Watanabe, R. Ohta, K. Onomitsu, H. Gotoh, T. Sogawa and H. Yamaguchi

    Cavity-less on-chip optomechanics using excitonic transitions in semiconductor heterostructures

    Nat. Commun. 6, 8478 (2015).

  5. S. Sasaki, K. Tateno, G. Q. Zhang, H. Pigot, Y. Harada, S. Saito, A. Fujiwara, T. Sogawa and K. Muraki

    Self-aligned gate-all-around InAs/InP core-shell nanowire field-effect transistors

    Jpn. J. Appl. Phys. 54, 04DN04 (2015).

  6. H. A. Hafez, I. Al-Naib, M. M. Dignam, Y. Sekine, K. Oguri, F. Blanchard, D. G. Cooke, S. Tanaka, F. Komori, H. Hibino, and T. Ozaki

    Nonlinear terahertz field-induced carrier dynamics in photoexcited epitaxial monolayer graphene

    Phys. Rev. B 91 (3), 035422 (2015).

  7. A. Najar, H. Omi, and T. Tawara

    Effect of structure and composition on optical properties of Er-Sc silicates prepared from multi-nanolayer films

    Opt. Express 23 (6) 7021-7030 (2015).

  8. K. Oguri, T. Tsunoi, K. Kato, H. Nakano, T. Nishikawa, K. Tateno, T. Sogawa, and H. Gotoh

    Dynamical observation of photo-Dember effect on semi-insulating GaAs using femtosecond core-level photoelectron spectroscopy

    Appl. Phys. Express 8 (2), 022401 (2015).

  9. R. Ohsugi, J. Shiogai, Y. Kunihashi, M. Kohda, H. Sanada, T. Seki, M. Mizuguchi, H. Gotoh, K. Takanashi, and J. Nitta

    Comparison of electrical and optical detection of spin injection in L10-FePt/MgO/GaAs hybrid structures

    J. Phys. D-Appl. Phys. 48 (16), 164003 (2015).

  10. G. Q. Zhang, K. Tateno, M. D. Birowosuto, M. Notomi, T. Sogawa, and H. Gotoh

    Controlled 1.1-1.6 mu m luminescence in gold-free multi-stacked InAs/InP heterostructure nanowires

    Nanotechnology 26 (11), 115704 (2015).

Publications in 2014

  1. H. Gotoh, H. Sanada, H. Yamaguchi and T. Sogawa

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

    AIP Adv. 4 (10), 107124 (2014).

  2. H.A. Hafez, I. Al-Naib, K. Oguri, Y. Sekine, M.M. Dignam, A. Ibrahim, D.G. Cooke, S. Tanaka, F. Komori, H. Hibino and T. Ozaki

    Nonlinear transmission of an intense terahertz field through monolayer graphene

    AIP Adv. 4 (11), 117118 (2014).

  3. K. Hitachi, A. Ishizawa, T. Nishikawa, M. Asobe and T. Sogawa

    Carrier-envelope offset locking with a 2f-to-3f self-referencing interferometer using a dual-pitch PPLN ridge waveguide

    Opt. Express 22 (2), 1629-1635 (2014).

  4. T. Hoshi, N. Kashio, H. Sugiyama, H. Yokoyama, K. Kurishima, M. Ida, H. Matsuzaki and H. Gotoh

    A simple method for forming compositionally graded InxGa1-xAs1-ySby base of double-heterojunction bipolar transistors modulating CBr4-doping-precursor flow in metalorganic chemical vapor deposition

    Appl. Phys. Express 7 (11), 114102 (2014).

  5. T. Hoshi, N. Kashio, H. Sugiyama, H. Yokoyama, K. Kurishima, M. Ida, H. Matsuzaki, M. Kohtoku and H. Gotoh

    MOCVD-grown compressively strained C-doped InxGa1-xAs1-ySby with high-In/Sb content for very low turn-on-voltage InP-based DHBTs

    J. Cryst. Growth 404, 172-176 (2014).

  6. T. Ito, H. Gotoh, M. Ichida and H. Ando

    Evaluation of hole-spin superposition in GaAs/AlGaAs quantum wells through time-resolved photoluminescence measurements

    Appl. Phys. Lett. 104 (25), 252406 (2014).

  7. H. Mashiko, T. Yamaguchi, K. Oguri, A. Suda and H. Gotoh

    Characterizing inner-shell with spectral phase interferometry for direct electric-field reconstruction

    Nat. Commun. 5, 5599 (2014).

  8. H. Okamoto, S. Suzuki, H. Narita, T. Tawara, K. Tateno and H. Gotoh

    Deep-level transient spectroscopy characterization of In(Ga) As quantum dots fabricated using Bi as a surfactant

    Jpn. J. Appl. Phys. 53 (6), 06JG11 (2014).

  9. K. I. Sasaki, H. Gotoh and Y. Tokura

    Valley-antisymmetric potential in graphene under dynamical deformation

    Phys. Rev. B, Condens. Matter Mater. Phys. 90 (20), 205402 (2014).

  10. K. Sasaki and N. Kumada

    Effects of screening on the propagation of graphene surface plasmons

    Phys. Rev. B 90 (3), 035449 (2014).

  11. K. Tateno, G. Q. Zhang and H. Gotoh

    Etching effect of tertiary-butyl chloride during InP-nanowire growth

    J. Cryst. Growth 402, 299-303 (2014).

  12. K. Tateno, G. Q. Zhang and H. Gotoh

    Growth of InP nanowires on graphene-covered Fe

    Jpn. J. Appl. Phys. 53 (1), 015504 (2014).

  13. M. Anagnosti, H. Omi and T. Tawara

    Simultaneous light emissions from erbium-thulium silicates and oxides on silicon in the second and third telecommunications bands

    Opt. Mater. Express 4 (9), 1747-1755 (2014).

  14. A. Najar, H. Omi and T. Tawara

    Scandium effect on the luminescence of Er-Sc silicates prepared from multi-nanolayer films

    Nanoscale Res. Lett. 9, 356 (2014).

  15. M. D. Birowosuto, A. Yokoo, G. Q. Zhang, K. Tateno, E. Kuramochi, H. Taniyama, M. Takiguchi and M. Notomi

    Movable high-Q nanoresonators realized by semiconductor nanowires on a Si photonic crystal platform

    Nat. Mater. 13 (3), 280-286 (2014).

  16. T. Hoshi, N. Kashio, H. Sugiyama, H. Yokoyama, K. Kurishima, M. Ida, H. Matsuzaki, and H. Gotoh

    A simple method for forming compositionally graded InxGa1-xAs1-ySby base of double-heterojunction bipolar transistors modulating CBr4-doping-precursor flow in metalorganic chemical vapor deposition

    Appl. Phys. Express 7 (11), 114102 (2014).

Publications in 2013

  1. H. Gotoh, H. Sanada, H. Yamaguchi, and T. Sogawa

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

    Appl. Phys. Lett. 103 (11), 112104 (2013).

  2. Y. Hayashi, AS. Pirozhkov, M. Kando, K. Ogura, H. Kotaki, H. Kiriyama, H. Okada, H. Gotoh, and T. Nishikawa

    Xe K-shell X-ray generation using conical nozzle and 25 TW laser

    Laser Part. Beams 31 (3), 419-425 (2013).

  3. H. Hideki Gotoharuki H. Sanadairoshi Yamaguchi, and Tetsuomi Sogawa

    Direct Biexciton Creation with Two-Photon Excitation for Ideal Entangled Photon Pair Emissions in Optically Active Quantum Dots,

    J. Appl. Phys. 52, 120202, (2013) .

  4. K. Hitachi, A. Ishizawa, T. Nishikawa, M. Asobe, and T. Sogawa

    Periodically poled lithium niobate ridge waveguides with high conversion efficiency for 2f-to-3f self-referencing interferometer

    Electron. Lett. 49 (2), 145 (2013).

  5. T. Hoshi, H. Sugiyama, H. Yokoyama, K. Kurishima, M. Ida, H. Matsuzaki, and K. Tateno

    Carbon doping in InGaAsSb films on (001) InP substrate using CBr4 grown by metalorganic chemical vapor deposition

    J. Cryst. Growth 380, 197-204 (2013).

  6. A. Ishizawa, T. Nishikawa, A. Mizutori, H. Takara, A. Takada, T. Sogawa, and M. Koga

    Phase-noise characteristics of a 25-GHz-spaced optical frequency comb based on a phase- and intensity-modulated laser

    Opt. Express 21 (24), 29186-29194 (2013).

  7. H. Mashiko, K. Oguri, and T. Sogawa

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

    Appl. Phys. Lett. 102 (17), 171111 (2013).

  8. H. Sanada, Y. Kunihashi, H. Gotoh, K. Onomitsu, M. Kohda, J. Nitta, PV. Santos, and T. Sogawa

    Manipulation of mobile spin coherence using magnetic-field-free electron spin resonance

    Nat. Phys. 9 (5), 280-283 (2013).

  9. K. Sasaki, Y. Sekine, K. Tateno, and H. Gotoh

    Topological Raman Band in the Carbon Nanohorn

    Phys. Rev. Lett. 111 (11), 116801 (2013).

  10. T. Tawara, H. Omi, T. Hozumi, R. Kaji, S. Adachi, H. Gotoh, and T. Sogawa

    Population dynamics in epitaxial Er2O3 thin films grown on Si(111)

    Appl. Phys. Lett. 102 (24), 241918 (2013).

  11. GQ. Zhang, S. Sasaki, K. Tateno, H. Gotoh, and T. Sogawa

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

    AIP Adv. 3 (5), 052107 (2013).

  12. H. Omi, Y. Abe, M. Anagnosti, and T. Tawara

    Mixture formation of ErxYb2-xSi2O7 and ErxYb2-xO3 on Si for broadening the C-band in an optical amplifier

    AIP Adv. 3 (4), 042107 (2013).

  13. H. Omi, A. Hagiwara, and T. Tawara

    Light emission from thulium silicates and oxides for optical amplifiers on silicon in the extended optical communications band

    AIP Adv. 3 (7), 072122 (2013).

  14. Y. Furukawa, A. Shimada, K. Kato, H. Iwata, and K. Torimitsu

    Monitoring neural stem cell differentiation using PEDOT-PSS based MEA

    Biochim. Biophys. Acta-Gen. Subj. 1830 (9), 4329-4333 (2013).

  15. S. Sasaki, K. Tateno, GQ. Zhang, H. Suominen, Y. Harada, S. Saito, A. Fujiwara, T. Sogawa, and K. Muraki

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

    Appl. Phys. Lett. 103 (21), 213502 (2013).

Publications in 2012

  1. H. Gotoh, H. Sanada, H. Yamaguchi, and T. Sogawa

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

    Journal Of Applied Physics 111 (12), 123520 (2012).

  2. T. Hattori, A. Kubo, K. Oguri, H. Nakano, and HT. Miyazaki

    Femtosecond Laser-Excited Two-Photon Fluorescence Microscopy of Surface Plasmon Polariton

    Japanese Journal Of Applied Physics 51 (4), 04DG03 (2012).

  3. K. Kato, K. Oguri, A. Ishizawa, H. Nakano, and T. Sogawa

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

    Journal Of Applied Physics 111 (11), 113520 (2012).

  4. Y. Kunihashi, M. Kohda, H. Sanada, H. Gotoh, T. Sogawa, and J. Nitta

    Proposal of spin complementary field effect transistor

    Applied Physics Letters 100 (11), 113502 (2012).

  5. K. Oguri, K. Kato, T. Nishikawa, H. Gotoh, K. Tateno, T. Sogawa, and H. Nakano

    Time-Resolved Surface Photoelectron Spectroscopy of Photoexcited Electron and Hole Dynamics on GaAs Using 92 eV Laser Harmonic Source

    Japanese Journal Of Applied Physics 51 (7), 072401 (2012).

  6. K. Sasaki, K. Kato, Y. Tokura, S. Suzuki, and T. Sogawa

    Pseudospin for Raman D band in armchair graphene nanoribbons

    Physical Review B 85 (7), 075437 (2012).

  7. K. Sasaki, K. Kato, Y. Tokura, S. Suzuki, and T. Sogawa

    Decay and frequency shift of both intervalley and intravalley phonons in graphene: Dirac-cone migration

    Physical Review B 86 (20), 201403 (2012).

  8. T. Sogawa, H. Sanada, H. Gotoh, H. Yamaguchi, and PV. Santos

    Dynamic control of photoluminescence polarization properties in GaAs/AlAs quantum wells by surface acoustic waves

    Physical Review B 86 (3), 035311 (2012).

  9. T. Sogawa, H. Sanada, H. Gotoh, H. Yamaguchi, and PV. Santos

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

    Applied Physics Letters 100 (16), 162109 (2012).

  10. K. Tateno, G. Zhang., H. Gotoh, and T. Sogawa.

    Flat-Top and Stacking-Fault-Free GaAs-Related Nanopillars Grown on Si Substrates

    Journal Of Nanotechnology (), 890607 (2012).

  11. K. Tateno, GQ. Zhang, H. Gotoh, and T. Sogawa

    VLS Growth of Alternating InAsP/InP Heterostructure Nanowires for Multiple-Quantum-Dot Structures

    Nano Letters 12 (6), 28882893 (2012).

  12. GQ. Zhang, K. Tateno, H. Gotoh, and T. Sogawa

    Vertically Aligned InP Nanowires Grown via the Self-Assisted Vapor-Liquid-Solid Mode

    Applied Physics Express 5 (5), 055201 (2012).

  13. T. Akasaka, H. Gotoh, Y. Kobayashi, and H. Yamamoto

    Extremely Narrow Violet Photoluminescence Line from Ultrathin InN Single Quantum Well on Step-Free GaN Surface

    Advanced Materials 24 (31), 4296+ (2012).

  14. J. Fiala, H. Omi, and T. Tawara

    Electroluminescence from Er3+ incorporated into silicon oxide thin film on silicon in a scanning tunneling microscope

    Journal Of Nanophotonics 6 (), 063503 (2012).

  15. H. Omi, and T. Tawara

    Energy Transfers between Er3+ Ions Located at the Two Crystalographic Sites of Er2O3 Grown on Si(111)

    Japanese Journal Of Applied Physics 51 (2), 02BG07 (2012).

  16. H. Omi, T. Tawara, and M. Tateishi

    Real-time synchrotoron radiation X-ray diffraction and abnormal temperature dependence of photoluminescence from erbium silicates on SiO2/Si substrates

    Aip Advances 2 (1), 012141 (2012).

  17. T. Watanabe, H. Okamoto, K. Onomitsu, H. Gotoh, T. Sogawa, and H. Yamaguchi

    Optomechanical photoabsorption spectroscopy of exciton states in GaAs

    Applied Physics Letters 101 (8), 082107 (2012).