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2016

Detection sensitivity of electrooptic sampling for continuous-wave terahertz sources throughout broad frequency range

Kaneko, Y., Kirigaya, M., Katayama, I., Morohashi, I., Irimajiri, Y., Saito, S., Sekine, N., Ashida, M. & Hosako, I. 2016 Nov 28 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016. IEEE Computer Society, Vol. 2016-November, 7758761

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electrooptical effects
Sampling
Terahertz waves
Fiber lasers
Signal to noise ratio

Frequency measurement of THz waves by electro-optic sampling using Mach-Zehnder-modulator-based flat comb generator

Morohashi, I., Kirigaya, M., Kaneko, Y., Katayama, I., Sakamoto, T., Sekine, N., Kasamatsu, A. & Hosako, I. 2016 Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX. SPIE, Vol. 9747, 97470U

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Modulators
Terahertz waves
Electrooptical effects
Mach number
Sampling
2015

Electrochemical control of coherent phonon generations in single-walled metallic carbon nanotubes

Maekawa, K., Sato, K., Minami, Y., Katayama, I., Takeda, J., Yanagi, K. & Kitajima, M. 2015 Ultrafast Phenomena XIX - Proceedings of the 19th International Conference. Springer Science and Business Media, LLC, Vol. 162, p. 356-359 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Phonons
Carbon nanotubes
Ionic liquids

Electron dynamics in a gold thin film accelerated via an intense terahertz field

Minami, Y., Dao, T. D., Nagao, T., Takeda, J., Kitajima, M. & Katayama, I. 2015 Aug 10 Conference on Lasers and Electro-Optics Europe - Technical Digest. Institute of Electrical and Electronics Engineers Inc., Vol. 2015-August, 7184244

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electrons
Thin films
Gold
Terahertz spectroscopy
Terahertz waves

Electron dynamics in a gold thin film accelerated via an intense terahertz field

Minami, Y., Dao, T. D., Nagao, T., Takeda, J., Kitajima, M. & Katayama, I. 2015 May 4 CLEO: Science and Innovations, CLEO-SI 2015. Optical Society of America (OSA), p. 2267 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electrons
Thin films
Gold
Terahertz spectroscopy
Terahertz waves

Erratum: Surface metallic states in ultrathin Bi(001) films studied with terahertz time-domain spectroscopy (Applied Physics Letters (2012) 100 (251605))

Yokota, K., Takeda, J., Dang, C., Han, G., McCarthy, D. N., Nagao, T., Hishita, S., Kitajima, M. & Katayama, I. 2015 Aug 3 In : Applied Physics Letters. 107, 5, 059903

Research output: Contribution to journalArticle

Nonlinear carrier dynamics in semi-metal bismuth induced by intense terahertz field

Araki, K., Minami, Y., Dao, T. D., Nagao, T., Takeda, J., Kitajima, M. & Katayama, I. 2015 Ultrafast Phenomena XIX - Proceedings of the 19th International Conference. Springer Science and Business Media, LLC, Vol. 162, p. 633-636 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bismuth
Metals
Lighting

Nonlinear carrier responses in gold thin films induced by intense terahertz waves

Minami, Y., Dao, T. D., Nagao, T., Takeda, J., Kitajima, M. & Katayama, I. 2015 Ultrafast Phenomena XIX - Proceedings of the 19th International Conference. Springer Science and Business Media, LLC, Vol. 162, p. 626-629 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gold
Thin films
Terahertz waves
Damping
2 Citations

Real-time observation of phonon-polariton dynamics in ferroelectric LiNbO<inf>3</inf> in time-frequency space

Ikegaya, Y., Sakaibara, H., Minami, Y., Katayama, I. & Takeda, J. 2015 Aug 10 In : Applied Physics Letters. 107, 6, 062901

Research output: Contribution to journalArticle

Ferroelectric materials
Mirrors
Stimulated Raman scattering
Time delay
Damping

Single-shot real-time observation of ultrafast amorphization in Ge2Sb2Te5 thin film

Oba, W., Katayama, I., Minami, Y., Saiki, T. & Takeda, J. 2015 Ultrafast Phenomena XIX - Proceedings of the 19th International Conference. Springer Science and Business Media, LLC, Vol. 162, p. 352-355 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Amorphization
Thin films
Pumps
Spectroscopy
Imaging techniques
1 Citations

Terahertz dielectric response of photoexcited carriers in Si revealed via single-shot optical-pump and terahertz-probe spectroscopy

Minami, Y., Horiuchi, K., Masuda, K., Takeda, J. & Katayama, I. 2015 Oct 26 In : Applied Physics Letters. 107, 17, 171104

Research output: Contribution to journalArticle

Pumps
Spectroscopy
Dielectric properties
Time delay
Permittivity
8 Citations

Terahertz-field-induced nonlinear electron delocalization in Au nanostructures

Yoshioka, K., Minami, Y., Shudo, K. I., Dao, T. D., Nagao, T., Kitajima, M., Takeda, J. & Katayama, I. 2015 Feb 11 In : Nano Letters. 15, 2, p. 1036-1040 5 p.

Research output: Contribution to journalArticle

Nanostructures
Electric fields
Electrons
Electron tunneling
Opacity

Terahertz-induced acceleration of massive Dirac electrons in semimetal bismuth

Minami, Y., Araki, K., Dao, T. D., Nagao, T., Kitajima, M., Takeda, J. & Katayama, I. 2015 Nov 2 In : Scientific Reports. 5, 15870

Research output: Contribution to journalArticle

Electrons
Fermions
Bismuth
Metalloids
Band structure

Terahertz response of long-lived photoexcited electrons in silicon observed using single-shot terahertz spectroscopy

Katayama, I., Masuda, K., Horiuchi, K., Minami, Y. & Takeda, J. 2015 Aug 10 Conference on Lasers and Electro-Optics Europe - Technical Digest. Institute of Electrical and Electronics Engineers Inc., Vol. 2015-August, 7184246

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Silicon
Terahertz spectroscopy
Pumps
Electrons
Time measurement

Terahertz response of long-lived photoexcited electrons in silicon observed using single-shot terahertz spectroscopy

Katayama, I., Masuda, K., Horiuchi, K., Minami, Y. & Takeda, J. 2015 May 4 CLEO: Science and Innovations, CLEO-SI 2015. Optical Society of America (OSA), p. 2267 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Silicon
Terahertz spectroscopy
Pumps
Electrons
Time measurement
7 Citations

2 Sb2 Te 5]]>

Hada, M., Oba, W., Kuwahara, M., Katayama, I., Saiki, T., Takeda, J. & Nakamura, K. G. 2015 Aug 28 In : Scientific Reports. 5, 13530

Research output: Contribution to journalArticle

Amorphization
Phase transitions
Electron diffraction
Glass
Photoexcitation
2014
5 Citations

Broadband pump-probe imaging spectroscopy applicable to ultrafast single-shot events

Minami, Y., Yamaki, H., Katayama, I. & Takeda, J. 2014 Feb 1 In : Applied Physics Express. 7, 2, 022402

Research output: Contribution to journalArticle

Spectroscopy
Time delay
Mirrors
Pumps
Imaging techniques

Broadband terahertz generation approaching optical communication frequency using tilted dast crystals

Katayama, I., Bito, M., Matsubara, E. & Ashida, M. 2014 Conference on Lasers and Electro-Optics Europe - Technical Digest. Institute of Electrical and Electronics Engineers Inc., Vol. 2014-January, 6989150

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Crystals
Phase matching
Near infrared spectroscopy
Optical communication
Infrared radiation

Broadband terahertz generation approaching optical communication frequency using tilted DAST crystals

Katayama, I., Bito, M., Matsubara, E. & Ashida, M. 2014 Jan 1 Optics InfoBase Conference Papers. Optical Society of American (OSA)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Crystals
Phase matching
Near infrared spectroscopy
Optical communication
Infrared radiation

Broadband terahertz generation approaching optical communication frequency using tilted DAST crystals

Katayama, I., Bito, M., Matsubara, E. & Ashida, M. 2014 Jan 1 Optics InfoBase Conference Papers. Optical Society of American (OSA)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Crystals
Phase matching
Near infrared spectroscopy
Optical communication
Infrared radiation

Broadband terahertz generation approaching optical Communication frequency using tilted DAST crystals

Katayama, I., Bito, M., Matsubara, E. & Ashida, M. 2014 Jan 1 Optics InfoBase Conference Papers. Optical Society of American (OSA)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Crystals
Phase matching
Near infrared spectroscopy
Optical communication
Infrared radiation

Broadband terahertz spectroscopy of thin films

Katayama, I. & Ashida, M. 2014 Springer Series in Optical Sciences. Springer Verlag, Vol. 180, p. 167-184 18 p. (Springer Series in Optical Sciences; vol. 180)

Research output: Chapter in Book/Report/Conference proceedingChapter

Terahertz spectroscopy
Thin films

Carrier dynamics of a bismuth thin film accelerated via intense terahertz field

Minami, Y., Araki, K., Dao, T. D., Nagao, T., Takeda, J., Kitajima, M. & Katayama, I. 2014 Conference on Lasers and Electro-Optics Europe - Technical Digest. Institute of Electrical and Electronics Engineers Inc., Vol. 2014-January, 6989253

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bismuth
Lighting
Thin films
Terahertz waves
Pumps

Carrier dynamics of a bismuth thin film accelerated via intense terahertz field

Minami, Y., Araki, K., Dao, T. D., Nagao, T., Takeda, J., Kitajima, M. & Katayama, I. 2014 Jan 1 Optics InfoBase Conference Papers. Optical Society of American (OSA)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bismuth
Lighting
Thin films
Terahertz waves
Pumps

Carrier dynamics of a bismuth thin film accelerated via intense terahertz field

Minami, Y., Araki, K., Thang Dao, D., Nagao, T., Takeda, J., Kitajima, M. & Katayama, I. 2014 Jan 1 Optics InfoBase Conference Papers. Optical Society of American (OSA)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bismuth
Lighting
Thin films
Terahertz waves
Pumps

Carrier dynamics of a bismuth thin film accelerated via intense terahertz field

Minami, Y., Araki, K., Dao, T. D., Nagao, T., Takeda, J., Kitajima, M. & Katayama, I. 2014 Optics InfoBase Conference Papers. Optical Society of American (OSA)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bismuth
Lighting
Thin films
Terahertz waves
Pumps
1 Citations

Coherent phonon and surface-enhanced Raman scattering dynamics in solids

Takeda, J., Katayama, I., Shudo, K. I. & Kitajima, M. 2014 Jan 1 In : Journal of Luminescence. 152, p. 23-27 5 p.

Research output: Contribution to journalArticle

Raman scattering
Graphite
Surface roughness
Self assembled monolayers
Electric fields

Electrochemical control of coherent phonon generations in single-walled metallic carbon nanotubes

Maekawa, K., Sato, K., Minami, Y., Katayama, I., Takeda, J., Yanagi, K. & Kitajima, M. 2014 Jan 1 Optics InfoBase Conference Papers. Optical Society of American (OSA)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Phonons
Carbon nanotubes
Ionic liquids

Generation of broadband optical combs with high OSNR for CW-THz wave generation by photonic down-conversion

Morohashi, I., Chiba, Y., Irimajiri, Y., Sakamoto, T., Katayama, I., Sekine, N., Kawanishi, T., Kasamatsu, A. & Hosako, I. 2014 Jan 1 International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. IEEE Computer Society, 6956263

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fibers
Photonics
Modulators
Mach number
3 Citations
Temperature
Absorption spectra
Phase transitions
Photons
Crystals

Nonlinear carrier dynamics in semi-metal bismuth induced by intense terahertz field

Araki, K., Minami, Y., Dao, T. D., Nagao, T., Takeda, J., Kitajima, M. & Katayama, I. 2014 Jan 1 Optics InfoBase Conference Papers. Optical Society of American (OSA)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bismuth
Metals
Lighting

Nonlinear carrier responses in gold thin films induced by intense terahertz waves

Minami, Y., Dao, T. D., Nagao, T., Takeda, J., Kitajima, M. & Katayama, I. 2014 Jan 1 Optics InfoBase Conference Papers. Optical Society of American (OSA)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gold
Thin films
Ultrafast phenomena
Terahertz waves
Carrier concentration

Nonlinear electron dynamics of gold ultrathin films induced by intense terahertz waves

Minami, Y., Takeda, J., Dao, T. D., Nagao, T., Kitajima, M. & Katayama, I. 2014 Dec 15 In : Applied Physics Letters. 105, 24, 241107

Research output: Contribution to journalArticle

Electrons
Ultrathin films
Electric fields
Gold
Terahertz spectroscopy

Nonlinear response of Au nanostructures observed with intense THz pulses

Yoshioka, K., Minami, Y., Dao, T. D., Nagao, T., Shudo, K., Takeda, J., Kitajima, M. & Katayama, I. 2014 Jan 1 International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. IEEE Computer Society, 6956365

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nanostructures
Permittivity
Thin films

Preface

Shudo, K. I., Katayama, I. & Ohno, S. Y. 2014 Jan 1 In : Springer Series in Optical Sciences. 180

Research output: Contribution to journalArticle

Resonance enhancement of first- and second-order coherent phonons in metallic single-walled carbon nanotubes

Sato, K., Tahara, K., Minami, Y., Katayama, I., Kitajima, M., Kawai, H., Yanagi, K. & Takeda, J. 2014 Dec 29 In : Physical Review B - Condensed Matter and Materials Physics. 90, 23, 235435

Research output: Contribution to journalArticle

Phonons
Single-walled carbon nanotubes (SWCN)
Wavelength
Stimulated Raman scattering
Laser pulses

Single-shot real-time observation of ultrafast amorphization in Ge2Sb2Te5 thin film

Oba, W., Katayama, I., Minami, Y., Saiki, T. & Takeda, J. 2014 Jan 1 Optics InfoBase Conference Papers. Optical Society of American (OSA)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Amorphization
Thin films
Pumps
Spectroscopy
Imaging techniques

Sub-terahertz frequency detection using sub-5 fs laser pulses and a photoconductive antenna

Katayama, I., Chiba, Y., Morohashi, I., Irimajiri, Y., Sekine, N., Hosako, I. & Ashida, M. 2014 Jan 1 International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. IEEE Computer Society, 6956230

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Light sources
Antennas
Laser pulses
Terahertz waves

Ultra-broadband IR and THz generation and detection with ultrashort pulses

Ashida, M., Matsubara, E. & Katayama, I. 2014 Mar 17 Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8964, 896409

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Antennas
Spectroscopy
Ultrashort pulses
Infrared radiation
Plasmas
12 Citations

Ultrafast crystalline-to-amorphous phase transition in Ge 2Sb2Te5 chalcogenide alloy thin film using single-shot imaging spectroscopy

Takeda, J., Oba, W., Minami, Y., Saiki, T. & Katayama, I. 2014 Jan 1 In : Applied Physics Letters. 104, 26, 261903

Research output: Contribution to journalArticle

Amorphization
Phase transitions
Spectroscopy
Crystalline materials
Imaging techniques
2013

Broadband THz time-domain spectroscopy of halogen-bridged platinum complexes

Ohshima, T., Minami, Y., Katayama, I. & Takeda, J. 2013 Oct 18 Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest. 6600522

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Platinum
Spectroscopy
Infrared radiation
4 Citations

Coherent nanoscale optical-phonon wave packet in graphene layers

Katayama, I., Sato, K., Koga, S., Takeda, J., Hishita, S., Fukidome, H., Suemitsu, M. & Kitajima, M. 2013 Dec 4 In : Physical Review B - Condensed Matter and Materials Physics. 88, 24, 245406

Research output: Contribution to journalArticle

Phonons
Graphene
Wave packets
Wavelength
Electron scattering

Control of phonon polariton propagation in linbo3 single crystals

Katayama, I., Ikegaya, Y., Minami, Y. & Takeda, J. 2013 Nov 18 CLEO: Science and Innovations, CLEO_SI 2013.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pumps
Tuning

Control of phonon polariton propagation in LiNbO3 single crystals

Katayama, I., Ikegaya, Y., Minami, Y. & Takeda, J. 2013 Nov 21 CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pumps
Tuning

Control of phonon polariton propagation in LiNbO3 single crystals

Katayama, I., Ikegaya, Y., Minami, Y. & Takeda, J. 2013 Jan 1 2013 Conference on Lasers and Electro-Optics, CLEO 2013. IEEE Computer Society, 6833829

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pumps
Tuning
8 Citations

Electric field detection of phase-locked near-infrared pulses using photoconductive antenna

Katayama, I., Akai, R., Bito, M., Matsubara, E. & Ashida, M. 2013 Jul 15 In : Optics Express. 21, 14, p. 16248-16254 7 p.

Research output: Contribution to journalArticle

Antennas
Infrared radiation
Electric fields
Near infrared spectroscopy
Fused silica

Electron-phonon coupling and defect scatterings in Ar+-ion implanted graphite

Katayama, I., Koga, S., Takeda, J., Hishita, S., Fujita, D. & Kitajima, M. 2013 Mar 1 In : Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan. 121, 1411, p. 291-294 4 p.

Research output: Contribution to journalArticle

Scattering
Phonons
Graphite
Ions
Defects

E-mode phonon-polariton dispersion in linbo3 probed via frequency-resolved coherent phonon spectroscopy

Takizawa, T., Katayama, I., Minami, Y., Kitajima, M. & Takeda, J. 2013 Nov 18 CLEO: Science and Innovations, CLEO_SI 2013.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Laser pulses
Spectroscopy

E-mode phonon-polariton dispersion in LiNbO3 probed via frequency-resolved coherent phonon spectroscopy

Takizawa, T., Katayama, I., Minami, Y., Kitajima, M. & Takeda, J. 2013 Nov 21 CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Laser pulses
Spectroscopy

E-mode phonon-polariton dispersion in LiNbO3 probed via frequency-resolved coherent phonon spectroscopy

Takizawa, T., Katayama, I., Minami, Y., Kitajima, M. & Takeda, J. 2013 Jan 1 2013 Conference on Lasers and Electro-Optics, CLEO 2013. IEEE Computer Society, 6833843

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Laser pulses
Spectroscopy