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研究成果 1990 2019

2014

Hybrid silicon and EO polymer waveguide modulator for high bandwidth application

Yokoyama, S., Feng, Q., Spring, A. M., Sato, H., Miura, H. & Inoue, Y., 7 21 2014, Integrated Photonics Research, Silicon and Nanophotonics, IPRSN 2016. OSA - The Optical Society, (Optics InfoBase Conference Papers).

研究成果: 著書/レポートタイプへの貢献会議での発言

Silicon
Electrooptical effects
Modulators
Polymers
Waveguides
9 引用 (Scopus)

The preparation of well-controlled poly(N-cyclohexyl-exo-norbornene-5, 6-dicarboximide) polymers

Spring, A. M., Yu, F., Qiu, F., Yamamoto, K. & Yokoyama, S., 1 1 2014, : : Polymer Journal. 46, 9, p. 576-583 8 p.

研究成果: ジャーナルへの寄稿記事

Polymers
Molecular weight
Refractive index
Weight control
Ring opening polymerization
8 引用 (Scopus)

TiO2 ring-resonator-based EO polymer modulator

Qiu, F., Spring, A. M., Maeda, D., Ozawa, M. A., Odoi, K., Aoki, I., Otomo, A. & Yokoyama, S., 6 16 2014, : : Optics Express. 22, 12, p. 14101-14107 7 p.

研究成果: ジャーナルへの寄稿記事

electro-optics
modulators
resonators
rings
polymers
2013
4 引用 (Scopus)

0.018pm/°C athermal silicon nitride ring resonator by polymer cladding

Yokoyama, S., Qiu, F., Feng, Y., Spring, A. M. & Yamamoto, K., 10 18 2013, 2013 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2013. 6600375. (Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest).

研究成果: 著書/レポートタイプへの貢献会議での発言

Silicon nitride
silicon nitrides
Resonators
Polymers
resonators
18 引用 (Scopus)

An enhanced host-guest electro-optical polymer system using poly(norbornene-dicarboximides) via ROMP

Yu, F., Spring, A. M., Li, L., Qiu, F., Yamamoto, K., Maeda, D., Ozawa, M., Odoi, K. & Yokoyama, S., 2 18 2013, : : Journal of Polymer Science, Part A: Polymer Chemistry. 51, 6, p. 1278-1284 7 p.

研究成果: ジャーナルへの寄稿記事

Polymers
Chromophores
Electrooptical effects
Molecular weight
Thiophenes

A novel TiO2/electro-optic polymer waveguide modulator

Qiu, F., Yokoyama, S., Aoki, I. & Otomo, A., 12 1 2013, JSAP-OSA Joint Symposia, JSAP 2013. (Optics InfoBase Conference Papers).

研究成果: 著書/レポートタイプへの貢献会議での発言

33 引用 (Scopus)
silicon nitrides
titanium oxides
CMOS
resonators
rings
12 引用 (Scopus)

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

Qiu, F., Spring, A. M., Yu, F., Aoki, I., Otomo, A. & Yokoyama, S., 11 1 2013, : : Laser and Photonics Reviews. 7, 6

研究成果: ジャーナルへの寄稿記事

Electrooptical effects
titanium oxides
Titanium dioxide
Modulators
electro-optics
2 引用 (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. 巻 8622. 86221K

研究成果: 著書/レポートタイプへの貢献会議での発言

Electro-optics
Chromophores
Electrooptical effects
chromophores
electro-optics

Fabrication and application of structured nanofiber on chip

Yamamoto, K., Yokoyama, S. & Otomo, A., 10 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).

研究成果: 著書/レポートタイプへの貢献会議での発言

Nanofibers
chips
etching
Fabrication
fabrication

High efficiency electro-optic polymer/ TiO2 waveguide modulators

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

研究成果: 著書/レポートタイプへの貢献会議での発言

Electro-optics
TiO2
Modulator
Electrooptical effects
Modulators

On-chip superfocusing of surface plasmon using metal-coat tapered optical fiber pairs with nano-gap structures

Yamamoto, K., Yokoyama, S. & Otomo, A., 6 3 2013, Photonic and Phononic Properties of Engineered Nanostructures III. 863228. (Proceedings of SPIE - The International Society for Optical Engineering; 巻数 8632).

研究成果: 著書/レポートタイプへの貢献会議での発言

Surface Plasmons
Plasmons
Surface Plasmon
plasmons
Optical Fiber

Organic electro-optical modulator with sol-gel SiO2/carbon nanotube clad layer

Yu, F., Yamamoto, K., Qiu, F. & Yokoyama, S., 2013, JSAP-OSA Joint Symposia, JSAP 2013.

研究成果: 著書/レポートタイプへの貢献会議での発言

20 引用 (Scopus)

Thin TiO2 core and electro-optic polymer cladding waveguide modulators

Qiu, F., Spring, A. M., Yu, F., Aoki, I., Otomo, A. & Yokoyama, S., 6 10 2013, : : Applied Physics Letters. 102, 23, 233504.

研究成果: ジャーナルへの寄稿記事

electro-optics
modulators
waveguides
polymers
refractivity

Titanium dioxide/electro-optic polymer hybrid rib-waveguide modulators

Qiu, F. & Yokoyama, S., 2013, 2013 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2013. 6600373

研究成果: 著書/レポートタイプへの貢献会議での発言

Electrooptical effects
figure of merit
titanium oxides
Titanium dioxide
Modulators
2012
19 引用 (Scopus)

Athermal silicon nitride ring resonator by photobleaching of Disperse Red 1-doped poly(methyl methacrylate) polymer

Qiu, F., Yu, F., Spring, A. M. & Yokoyama, S., 10 1 2012, : : Optics Letters. 37, 19, p. 4086-4088 3 p.

研究成果: ジャーナルへの寄稿記事

polymethyl methacrylate
silicon nitrides
resonators
rings
polymers
36 引用 (Scopus)
Methacrylates
Electrooptical effects
Crosslinking
Polymers
Chromophores
waveguides
filters
fibers
polymers
polarization
2011
35 引用 (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., 1 1 2011, : : Organic Electronics. 12, 6, p. 1093-1097 5 p.

研究成果: ジャーナルへの寄稿記事

Electrooptical effects
electro-optics
Molecules
augmentation
Chromophores
3 引用 (Scopus)

Multimode interference waveguide switch of electro-optic polymer with tapered access waveguides

Yu, F., Yamamoto, K., Piao, X. & Yokoyama, S., 1 1 2011, : : Physics Procedia. 14, p. 25-28 4 p.

研究成果: ジャーナルへの寄稿Conference article

electro-optics
switches
waveguides
interference
polymers
2 引用 (Scopus)

Nonlinear behavior of photoluminescence from silicon particles under two-photon excitation

Xu, X. & Yokoyama, S., 12 19 2011, : : Applied Physics Letters. 99, 25, 251105.

研究成果: ジャーナルへの寄稿記事

photoluminescence
photons
silicon
fluorescence
excitation
62 引用 (Scopus)

Nonlinear optical side-chain polymers post-functionalized with high-β chromophores exhibiting large electro-optic property

Piao, X., Zhang, X., Mori, Y., Koishi, M., Nakaya, A., Inoue, S., Aoki, I., Otomo, A. & Yokoyama, S., 1 1 2011, : : Journal of Polymer Science, Part A: Polymer Chemistry. 49, 1, p. 47-54 8 p.

研究成果: ジャーナルへの寄稿記事

Chromophores
Electrooptical effects
Polymers
Isocyanates
Thiophenes

Two-photon excited fluorescence from colloidal quantum dots on SiN photonic crystals

Xu, X., Yamada, T. & Yokoyama, S., 5 2 2011, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV. 巻 7937. 79371F

研究成果: 著書/レポートタイプへの貢献会議での発言

Quantum Dots
Photonic crystals
Photonic Crystal
Fluorescence
Semiconductor quantum dots
2010

Donor strengthening strategy for FTC-based organic nonlinear chromophore

Piao, X., Zhang, X., Yokoyama, S., Miki, H., Aoki, I. & Otomo, A., 12 1 2010, Quantum and Nonlinear Optics. 巻 7846. 784609

研究成果: 著書/レポートタイプへの貢献会議での発言

Electro-optics
Chromophores
Strengthening
chromophores
Electrooptical effects
41 引用 (Scopus)

Effect of modified donor units on molecular hyperpolarizability of thienyl-vinylene nonlinear optical chromophores

Zhang, X., Aoki, I., Piao, X., Inoue, S., Tazawa, H., Yokoyama, S. & Otomo, A., 11 10 2010, : : Tetrahedron Letters. 51, 45, p. 5873-5876 4 p.

研究成果: ジャーナルへの寄稿記事

Benchmarking
Chromophores
Thiophenes
Temperature
Electrooptical effects

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

Inoue, A., Inoue, S. I. & Yokoyama, S., 7 15 2010, : : Optics Communications. 283, 14, p. 2935-2938 4 p.

研究成果: ジャーナルへの寄稿記事

Microcavities
Electrooptical effects
electro-optics
Polymers
spacers
1 引用 (Scopus)

Hyper-branched polymer for electro-optic applications

Piao, X., Mori, Y., Zhang, X., Inoue, S. & Yokoyama, S., 5 3 2010, Organic Photonic Materials and Devices XII. 75990G. (Proceedings of SPIE - The International Society for Optical Engineering; 巻数 7599).

研究成果: 著書/レポートタイプへの貢献会議での発言

Electro-optics
Electrooptical effects
electro-optics
Polymers
p.m.
3 引用 (Scopus)

Modification of two-photon excited fluorescence from quantum dots on SiN photonic crystals

Xu, X., Yamada, T. & Yokoyama, S., 2 1 2010, : : Optics Letters. 35, 3, p. 309-311 3 p.

研究成果: ジャーナルへの寄稿記事

quantum dots
photonics
fluorescence
photons
crystals
3 引用 (Scopus)

Polymer microstructure embedded in two-dimensional photonic crystals and spectral properties

Sasaki, K., Inoue, S. I., Nishio, K., Masuda, H., Otomo, A. & Yokoyama, S., 1 1 2010, : : Optical Materials. 32, 4, p. 543-546 4 p.

研究成果: ジャーナルへの寄稿記事

Photonic crystals
Polymers
photonics
microstructure
Microstructure

Stimulated emission from silicon nanocrystals by two-photon excitation in CW operation

Xu, X. & Yokoyama, S., 12 1 2010, 2010 7th IEEE International Conference on Group IV Photonics, GFP 2010. p. 316-318 3 p. 5643340. (IEEE International Conference on Group IV Photonics GFP).

研究成果: 著書/レポートタイプへの貢献会議での発言

Stimulated emission
Silicon
Nanocrystals
Photons
Laser excitation
2009
4 引用 (Scopus)

Correlations between antibunching and blinking of photoluminescence from a single CdSe quantum dot

Xu, X. S., Yamada, T. & Yokoyama, S., 12 1 2009, : : European Physical Journal D. 55, 3, p. 691-697 7 p.

研究成果: ジャーナルへの寄稿記事

blinking
nanocrystals
quantum dots
photoluminescence
excitation

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

研究成果: 著書/レポートタイプへの貢献会議での発言

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

研究成果: 著書/レポートタイプへの貢献会議での発言

Microcavities
Electrooptical effects
Polymers
Ellipsometry
Refractive index

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

Inoue, S. I. & Yokoyama, S., 6 29 2009, Organic Photonic Materials and Devices XI. 巻 7213. 72131I

研究成果: 著書/レポートタイプへの貢献会議での発言

Photonic crystals
Photonic Crystal
Fluorescence
Photonics
Polymers

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

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

研究成果: 著書/レポートタイプへの貢献会議での発言

Electrooptical effects
Modulators
Mach number
electro-optics
modulators
1 引用 (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., 12 1 2009, 2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009. 5377384. (2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009).

研究成果: 著書/レポートタイプへの貢献会議での発言

Electrooptical effects
Modulators
Mach number
Waveguides
Metals
3 引用 (Scopus)

Nonlinear optical responses in two-dimensional photonic crystals

Inoue, S. I. & Yokoyama, S., 11 30 2009, : : Thin Solid Films. 518, 2, p. 470-472 3 p.

研究成果: ジャーナルへの寄稿記事

Photonic crystals
Lithium
lithium niobates
photonics
Harmonic generation
12 引用 (Scopus)

Numerical simulation of ultra-compact electro-optic modulator based on nanoscale plasmon metal gap waveguides

Inoue, S. I. & Yokoyama, S., 10 19 2009, : : Electronics Letters. 45, 21, p. 1087-1089 3 p.

研究成果: ジャーナルへの寄稿記事

Electrooptical effects
Modulators
Mach number
Waveguides
Finite difference time domain method
1 引用 (Scopus)

One dimensional polymeric photonic crystal doped with second-order nonlinear optical chromophore

Inoue, A., Inoue, S. I., Yokoyama, S., Kojima, K., Yasui, K., Ozawa, M. & Odoi, K., 6 29 2009, Organic Photonic Materials and Devices XI. 72131C. (Proceedings of SPIE - The International Society for Optical Engineering; 巻数 7213).

研究成果: 著書/レポートタイプへの貢献会議での発言

Chromophores
Photonic crystals
Photonic Crystal
doped crystals
chromophores
5 引用 (Scopus)

Photochemical and photophysical reactions of poly(propylene imine) dendrimers tethering cinnamamide groups

Furumi, S., Otomo, A., Yokoyama, S. & Mashiko, S., 6 19 2009, : : polymer. 50, 13, p. 2944-2952 9 p.

研究成果: ジャーナルへの寄稿記事

Dendrimers
Polypropylenes
Energy transfer
poly(propyleneimine)
cinnamamide

Preface

Iwamoto, M., Kaneto, K., Yokoyama, S. & Otomo, A., 11 30 2009, : : Thin Solid Films. 518, 2, 1 p.

研究成果: ジャーナルへの寄稿編集

Reflective planar microcavity with enhanced electro-optic activity of a poled polymer

Inoeu, A., Inoue, S. & Yokoyama, S., 12 1 2009, : : Proceedings of SPIE - The International Society for Optical Engineering. 7631, 763129.

研究成果: ジャーナルへの寄稿Conference article

Microcavity
Electro-optics
Microcavities
Electrooptical effects
electro-optics
5 引用 (Scopus)

Synthesis and characterization of binary chromophore polymers for electro-optic application

Piao, X., Inoue, S., Yokoyama, S., Miki, H., Aoki, I., Otomo, A. & Tazawa, H., 11 30 2009, : : Thin Solid Films. 518, 2, p. 481-484 4 p.

研究成果: ジャーナルへの寄稿記事

Chromophores
Electrooptical effects
chromophores
electro-optics
Polymers
2008
8 引用 (Scopus)

Direct determination of photonic band structure for waveguiding modes in two-dimensional photonic crystals

Inoue, S. I., Yokoyama, S. & Aoyagi, Y., 2 18 2008, : : Optics Express. 16, 4, p. 2461-2468 8 p.

研究成果: ジャーナルへの寄稿記事

photonics
prisms
crystals
evanescent waves
photons

Editorial

Iwamoto, M., Kaneto, K., Yokoyama, S. & Kahn, A., 3 3 2008, : : Thin Solid Films. 516, 9, 1 p.

研究成果: ジャーナルへの寄稿編集

13 引用 (Scopus)
photonics
waveguides
fluorescence
augmentation
polymers
1 引用 (Scopus)

Nanosecond and femtosecond mass spectroscopic analysis of a molecular beam produced by the spray-jet technique

Yamada, T., Shinohara, H., Kamikado, T., Okuno, Y., Suzuki, H., Mashiko, S. & Yokoyama, S., 3 3 2008, : : Thin Solid Films. 516, 9, p. 2522-2526 5 p.

研究成果: ジャーナルへの寄稿記事

Spectroscopic analysis
Molecular beams
spectroscopic analysis
molecular beams
sprayers
13 引用 (Scopus)

Observation of negative differential resistance and single-electron tunneling in electromigrated break junctions

Noguchi, Y., Ueda, R., Kubota, T., Kamikado, T., Yokoyama, S. & Nagase, T., 3 3 2008, : : Thin Solid Films. 516, 9, p. 2762-2766 5 p.

研究成果: ジャーナルへの寄稿記事

Electron tunneling
electron tunneling
Diamond
Diamonds
electrons

The fluorescence behavior from SAM of dendron with rhodamine B as a center

Naitoh, Y., Otomo, A., Miki, H., Aoki, I. & Yokoyama, S., 3 3 2008, : : Thin Solid Films. 516, 9, p. 2371-2375 5 p.

研究成果: ジャーナルへの寄稿記事

rhodamine B
Self assembled monolayers
rhodamine
Fluorescence
fluorescence