If you made any changes in Pure these will be visible here soon.

Research Output 1990 2019

13 Citations (Scopus)

Effect of the metal/organic interface phenomena on the current-voltage characteristics of organic single electron tunneling device

Kubota, T., Yokoyama, S., Nakahama, T., Mashiko, S., Noguchi, Y., Majima, Y. & Iwamoto, M., Aug 1 2001, In : Thin Solid Films. 393, 1-2, p. 379-382 4 p.

Research output: Contribution to journalConference article

Electron tunneling
Current voltage characteristics
electron tunneling
Metals
Electric potential
6 Citations (Scopus)

Efficiently poled electro-optic polymer modulators

Qiu, F. & Yokoyama, S., Aug 22 2016, In : Optics Express. 24, 17, p. 19020-19025 6 p.

Research output: Contribution to journalArticle

electro-optics
modulators
polymers
waveguides
stability tests

Efficient silicon nitride grating coupler with a dielectric multilayer reflector

Hong, J. & Yokoyama, S., Nov 19 2017, 22nd Microoptics Conference, MOC 2017. Institute of Electrical and Electronics Engineers Inc., p. 58-59 2 p. (22nd Microoptics Conference, MOC 2017; vol. 2017-November).

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

Silicon nitride
silicon nitrides
couplers
reflectors
Multilayers
159 Citations (Scopus)

Electrical control of the structure and lasing in chiral photonic band-gap liquid crystals

Furumi, S., Yokoyama, S., Otomo, A. & Mashiko, S., Jan 6 2003, In : Applied Physics Letters. 82, 1, p. 16-18 3 p.

Research output: Contribution to journalArticle

lasing
liquid crystals
photonics
photoexcitation
doped crystals

Electrical properties of organic single electron tunneling device

Kubota, T., Yokoyama, S., Nakahama, T., Mashiko, S., Noguchi, Y., Hashizume, K., Manaka, T. & Iwamoto, M., Dec 1 2001, p. 541-544. 4 p.

Research output: Contribution to conferencePaper

Electron tunneling
Electric properties
Rhodamines
Macromolecules
Tunnels
2 Citations (Scopus)

Electrical response of the supramolecular helical structure and laser action in chiral photonic bandgap liquid crystals

Furumi, S., Yokoyama, S., Otomo, A. & Mashiko, S., Oct 2003, In : KOBUNSHI RONBUNSHU. 60, 10, p. 555-560 6 p.

Research output: Contribution to journalArticle

Cholesteric liquid crystals
Liquid Crystals
Liquid crystals
Photonics
Energy gap

Electro-optic modulators further than 100 Gbps

Qiu, F. & Yokoyama, S., Jan 1 2018, Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2018. OSA - The Optical Society, (Optics InfoBase Conference Papers; vol. Part F113-CLEOPR 2018).

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

Electrooptical effects
Modulators
Digital storage
Optical waveguides
Optical communication

Electro-Optic Modulators Further Than 100 Gbps

Qiu, F. & Yokoyama, S., Jul 2 2018, 2018 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2018. Institute of Electrical and Electronics Engineers Inc., 8699340. (2018 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2018).

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

Electrooptical effects
Modulators
electro-optics
modulators
Digital storage
12 Citations (Scopus)

Electro-optic polymer/titanium dioxide hybrid core ring resonator modulators

Qiu, F., Spring, A. M., Yu, F., Aoki, I., Otomo, A. & Yokoyama, S., Nov 1 2013, In : Laser and Photonics Reviews. 7, 6

Research output: Contribution to journalArticle

Electrooptical effects
titanium oxides
Titanium dioxide
Modulators
electro-optics

Electro-optic polymer/titanium dioxide hybrid modulators

Qiu, F. & Yokoyama, S., Jan 1 2015, JSAP-OSA Joint Symposia, JSAP 2019. OSA - The Optical Society, (Optics InfoBase Conference Papers; vol. Part F132-JSAP 2019).

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

Electro-optic polymer / titanium dioxide hybrid modulators

Qiu, F. & Yokoyama, S., Sep 1 2014, JSAP-OSA Joint Symposia, JSAP 2014. Optical Society of America (OSA), (JSAP-OSA Joint Symposia, JSAP 2014).

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

Electrooptical effects
titanium oxides
Titanium dioxide
Modulators
electro-optics
1 Citation (Scopus)

Electro-optic polymer modulator with low-driving voltage and high-bandwidth property toward high-refractive index waveguide plateform

Yokoyama, S., Feng, Q., Spring, A. M. & Yamamoto, K., Dec 22 2014, 2014 IEEE Photonics Conference, IPC 2014. Institute of Electrical and Electronics Engineers Inc., p. 32-33 2 p. 6995195. (2014 IEEE Photonics Conference, IPC 2014).

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

Electrooptical effects
low voltage
Modulators
electro-optics
modulators
1 Citation (Scopus)

Electro-optic Polymer Ring Resonator Modulator on a Flat Silicon-on-Insulator

Qiu, F., Spring, A. M., Hong, J., Miura, H., Kashino, T., Kikuchi, T., Ozawa, M., Nawata, H., Odoi, K. & Yokoyama, S., Nov 1 2017, In : Laser and Photonics Reviews. 11, 6, 1700061.

Research output: Contribution to journalLetter

Silicon
Electrooptical effects
Modulators
electro-optics
modulators
6 Citations (Scopus)

Electro-optic properties of a bi-chromophore norbornene polymer brush system

Jia, Y., Spring, A. M., Qiu, F., Yu, F., Yamamoto, K., Aoki, I., Otomo, A. & Yokoyama, S., Feb 10 2014, In : Japanese journal of applied physics. 53, 1 PART 2, 01AF04.

Research output: Contribution to journalArticle

Azobenzene
brushes
Brushes
Chromophores
Electrooptical effects
4 Citations (Scopus)

Electro-optic properties of a side chain poly(norbornene-dicarboximide) system with an appended phenyl vinylene thiophene chromophore

Spring, A. M., Qiu, F., Hong, J., Bannaron, A. & Yokoyama, S., Jun 16 2017, In : Polymer. 119, p. 13-27 15 p.

Research output: Contribution to journalArticle

Thiophenes
Thiophene
Chromophores
Electrooptical effects
Polymers

Electro-optic side-chain polymers containing adamantyl groups and high-hyperpolar chromophores via the Huisgen reaction and their optical properties

Takeuchi, S., Spring, A. M., Yamamoto, K. & Yokoyama, S., Feb 23 2016, MOC 2015 - Technical Digest of 20th Microoptics Conference. Institute of Electrical and Electronics Engineers Inc., 7416422

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

Chromophores
Electrooptical effects
chromophores
electro-optics
Polymers
2 Citations (Scopus)

Electro-optic waveguide with conductive chromophore contained polymer cladding

Yamamoto, K., Yu, F., Li, L., Yokoyama, S., Otomo, A., Yasui, K. & Ozawa, M., 2013, Organic Photonic Materials and Devices XV. Vol. 8622. 86221K

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

Electro-optics
Chromophores
Electrooptical effects
chromophores
electro-optics

Enhanced electro-optic response of a poled polymer in a reflective microcavity

Inoue, A., Inoue, S. I. & Yokoyama, S., Jul 15 2010, In : Optics Communications. 283, 14, p. 2935-2938 4 p.

Research output: Contribution to journalArticle

Microcavities
Electrooptical effects
electro-optics
Polymers
spacers

Enhanced electro-optic response of a poled polymer in reflective planar microcavities

Inoue, A., Inoue, S. & Yokoyama, S., 2009, Asia Communications and Photonics Conference and Exhibition, ACP 2009. Optical Society of America

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

Microcavities
Electrooptical effects
electro-optics
polymers
Polymers

Enhanced electro-optic response of a poled polymer in reflective planar microcavities

Inoue, A., Inoue, S. & Yokoyama, S., 2009, 2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009. 5377387

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

Microcavities
Electrooptical effects
Polymers
Ellipsometry
Refractive index

Enhanced thermal stability of electro-optic polymer modulator

Miura, H. & Yokoyama, S., Nov 19 2017, 22nd Microoptics Conference, MOC 2017. Institute of Electrical and Electronics Engineers Inc., p. 184-185 2 p. (22nd Microoptics Conference, MOC 2017; vol. 2017-November).

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

Electrooptical effects
Modulators
electro-optics
modulators
Polymers
35 Citations (Scopus)

Enhancement of electro-optic activity by introduction of a benzyloxy group to conventional donor-π-acceptor molecules

Piao, X., Zhang, X., Inoue, S., Yokoyama, S., Aoki, I., Miki, H., Otomo, A. & Tazawa, H., Jan 1 2011, In : Organic Electronics. 12, 6, p. 1093-1097 5 p.

Research output: Contribution to journalArticle

Electrooptical effects
electro-optics
Molecules
augmentation
Chromophores
13 Citations (Scopus)
photonics
waveguides
fluorescence
augmentation
polymers

Enhancing the two-photon excited fluorescence by two-dimensional nonlinear optical-polymer photonic crystals

Inoue, S. I. & Yokoyama, S., Jun 29 2009, Organic Photonic Materials and Devices XI. Vol. 7213. 72131I

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

Photonic crystals
Photonic Crystal
Fluorescence
Photonics
Polymers
2 Citations (Scopus)

Erratum: Tunneling-electron-induced molecular luminescence from a nanoscale layer of organic molecules on metal substrates (Applied Physics Letters (2004) 84 (969))

Guo, X. L., Dong, Z. C., Trifonov, A. S., Yokoyama, S., Mashiko, S. & Okamoto, T., Apr 5 2004, In : Applied Physics Letters. 84, 14, 1 p.

Research output: Contribution to journalComment/debate

electron tunneling
luminescence
physics
metals
molecules
10 Citations (Scopus)

Estimation of organic molecular film structures using surface-plasmon resonance spectroscopy

Zhou, M., Otomo, A., Yokoyama, S. & Mashiko, S., Aug 1 2001, In : Thin Solid Films. 393, 1-2, p. 114-118 5 p.

Research output: Contribution to journalArticle

Surface plasmon resonance
surface plasmon resonance
Spectroscopy
Substrates
spectroscopy

Fabrication and application of structured nanofiber on chip

Yamamoto, K., Yokoyama, S. & Otomo, A., Oct 18 2013, 2013 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2013. 6600413. (Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest).

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

Nanofibers
chips
etching
Fabrication
fabrication

Fabrication and characterization of nanometer-size structures consisting of organic molecules

Suzuki, H., Terui, T., Tanaka, S., Miki, H., Kamikado, T., Yokoyama, T., Okuno, Y., Yokoyama, S. & Mashiko, S., Sep 1 2004, In : Journal of the National Institute of Information and Communications Technology. 51, 3-4, p. 119-127 9 p.

Research output: Contribution to journalArticle

Fabrication
Molecules
Microscopes
Scanning
Binding sites
5 Citations (Scopus)

Fabrication of a high-Q factor ring resonator using LSCVD deposited Si3N4 film

Cheng, X., Hong, J., Spring, A. M. & Yokoyama, S., Jun 2 2017, In : Optical Materials Express. 7, 7, p. 2182-2187 6 p.

Research output: Contribution to journalArticle

Photonics
Resonators
Chemical vapor deposition
Fabrication
Optical losses

Fabrication of functional photonic crystal by multi-photon induced photopolymerization

Yokoyama, S., Nakahama, T., Hideki, Miki & Mashiko, S., 2005, 54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan. 1 ed. Vol. 54. p. 1371 1 p.

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

Photopolymerization
Photonic crystals
Photons
Fabrication
Polymers

Fabrication of no-bias MMI-MZI modulator based on EO polymer

Sato, H., Yamamoto, K. & Yokoyama, S., Feb 23 2016, MOC 2015 - Technical Digest of 20th Microoptics Conference. Institute of Electrical and Electronics Engineers Inc., 7416514. (MOC 2015 - Technical Digest of 20th Microoptics Conference).

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

Modulators
Mach number
modulators
Polymers
interference
20 Citations (Scopus)

Fabrication of three-dimensional microstructure in optical-gain medium using two-photon-induced photopolymerization technique

Yokoyama, S., Nakahama, T., Miki, H. & Mashiko, S., Aug 22 2003, In : Thin Solid Films. 438-439, p. 452-456 5 p.

Research output: Contribution to journalConference article

Optical gain
Dye lasers
Microcavities
Photopolymerization
dye lasers
11 Citations (Scopus)
Langmuir Blodgett films
Langmuir-Blodgett films
Macromolecules
macromolecules
Dendrimers
22 Citations (Scopus)

Further investigation of the preparation process of poly(p-phenylenevinylene) Langmuir-Blodgett films

Wu, A., Yokoyama, S., Watanabe, S., Kakimoto, M. A., Imai, Y., Araki, T. & Iriyama, K., May 15 1994, In : Thin Solid Films. 244, 1-2, p. 750-753 4 p.

Research output: Contribution to journalArticle

Langmuir Blodgett films
Langmuir-Blodgett films
Heat treatment
preparation
Sulfides
7 Citations (Scopus)

Glass transition temperature control by poly(norbornene-dicarboximide) copolymers

Spring, A. M., Maeda, D., Ozawa, M., Odoi, K., Qiu, F., Yamamoto, K. & Yokoyama, S., Jan 1 2015, In : Polymer Bulletin. 72, 3, p. 503-521 19 p.

Research output: Contribution to journalArticle

temperature control
Temperature control
glass transition temperature
copolymers
Copolymers

High efficiency electro-optic polymer/ TiO2 waveguide modulators

Qiu, F. & Yokoyama, S., 2013, Optical Processes in Organic Materials and Nanostructures II. Vol. 8827. 88270A

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

Electro-optics
TiO2
Modulator
Electrooptical effects
Modulators

Highly compact organic electro-optic modulator based on nanoscale plasmon metal gap waveguides

Inoue, S. I. & Yokoyama, S., Jan 1 2009, Asia Communications and Photonics Conference and Exhibition, ACP 2009. Optical Society of America, (Optics InfoBase Conference Papers).

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

Electrooptical effects
Modulators
Mach number
electro-optics
modulators
1 Citation (Scopus)
Electro-optic Modulator
Surface Plasmon Polariton
Finite-difference Time-domain Method
Plasmon
Electro-optics

Highly compact organic electro-optic modulator based on nanoscale plasmon metal gap waveguides

Inoue, S. I. & Yokoyama, S., Dec 1 2009, 2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009. 5377384. (2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009).

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

Electrooptical effects
Modulators
Mach number
Waveguides
Metals
5 Citations (Scopus)
Thiophenes
Thiophene
Chromophores
Electrooptical effects
thiophenes
3 Citations (Scopus)

High Temperature Resistant 112 Gbit/s PAM4 Modulator Based on Electro-Optic Polymer Modulator

Yokoyama, S., Lu, G. W., Miura, H., Qiu, F. & Spring, A. M., Nov 14 2018, 2018 European Conference on Optical Communication, ECOC 2018. Institute of Electrical and Electronics Engineers Inc., 8535460. (European Conference on Optical Communication, ECOC; vol. 2018-September).

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

Electrooptical effects
Modulators
Polymers
Pulse amplitude modulation
Temperature
19 Citations (Scopus)

High thermal stability 40 GHz electro-optic polymer modulators

Miura, H., Qiu, F., Spring, A. M., Kashino, T., Kikuchi, T., Ozawa, M., Nawata, H., Odoi, K. & Yokoyama, S., Nov 13 2017, In : Optics Express. 25, 23, p. 28643-28649 7 p.

Research output: Contribution to journalArticle

electro-optics
modulators
thermal stability
polymers
frequency response

Hybrid electro-optic polymer modulators

Qiu, F. & Yokoyama, S., Oct 26 2016, 2016 21st OptoElectronics and Communications Conference, OECC 2016 - Held Jointly with 2016 International Conference on Photonics in Switching, PS 2016. Institute of Electrical and Electronics Engineers Inc., 7718500

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

Electrooptical effects
figure of merit
Modulators
electro-optics
modulators

Hybrid silicon and EO polymer waveguide modulator for high bandwidth application

Yokoyama, S., Feng, Q., Spring, A. M., Sato, H., Miura, H. & Inoue, Y., Jul 21 2014, Integrated Photonics Research, Silicon and Nanophotonics, IPRSN 2016. OSA - The Optical Society, (Optics InfoBase Conference Papers).

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

Silicon
Electrooptical effects
Modulators
Polymers
Waveguides
1 Citation (Scopus)

Hybrid thin silicon nitride and electro-optic polymer waveguide modulators

Ishino, M. & Yokoyama, S., Feb 23 2016, MOC 2015 - Technical Digest of 20th Microoptics Conference. Institute of Electrical and Electronics Engineers Inc., 7416476. (MOC 2015 - Technical Digest of 20th Microoptics Conference).

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

Electrooptical effects
Silicon nitride
silicon nitrides
Modulators
electro-optics

Hybrid ultra thin silicon and electro-optic polymer waveguide modulator

Inoue, Y., Miura, H. & Yokoyama, S., Nov 19 2017, 22nd Microoptics Conference, MOC 2017. Institute of Electrical and Electronics Engineers Inc., p. 302-303 2 p. (22nd Microoptics Conference, MOC 2017; vol. 2017-November).

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

Silicon
Electrooptical effects
Modulators
electro-optics
modulators
1 Citation (Scopus)

Hyper-branched polymer for electro-optic applications

Piao, X., Mori, Y., Zhang, X., Inoue, S. & Yokoyama, S., May 3 2010, Organic Photonic Materials and Devices XII. 75990G. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 7599).

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

Electro-optics
Electrooptical effects
electro-optics
Polymers
p.m.
17 Citations (Scopus)

Identifying subphthalocyanine molecule isomers by using a scanning tunneling microscope

Suzuki, H., Miki, H., Yokoyama, S. & Mashiko, S., Apr 17 2003, In : Journal of Physical Chemistry B. 107, 15, p. 3659-3662 4 p.

Research output: Contribution to journalArticle

Isomers
Microscopes
isomers
microscopes
Scanning
14 Citations (Scopus)

Imidization Process in a Dye-Labeled Poly(amic acid) Langmuir-Blodgett Film Studied by Optical Second-Harmonic Generation

Yamada, T., Yokoyama, S., Kajikawa, K., Ishikawa, K., Takezoe, H., Fukuda, A., Kakimoto, M. A. & Imai, Y., Apr 1 1994, In : Langmuir. 10, 4, p. 1160-1163 4 p.

Research output: Contribution to journalArticle

Langmuir Blodgett films
Langmuir-Blodgett films
Harmonic generation
harmonic generations
Coloring Agents
37 Citations (Scopus)
Dendrimers
Azobenzene
dendrimers
Dimers
dimers