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Research Output 1990 2019

2008

Two-photon polymer laser writing in the photonic crystal

Yokoyama, S., Inoue, S. & Sasaki, K., Nov 12 2008, Linear and Nonlinear Optics of Organic Materials VIII. 70490K. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 7049).

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

Photonic crystals
Photonic Crystal
Polymers
Photon
Photons
2007

Analysis of a molecular beam produced by the spray-jet technique with femtosecond laser mass spectroscopy

Yamada, T., Shinohara, H., Mashiko, S. & Yokoyama, S., Aug 20 2007, In : Molecular Crystals and Liquid Crystals. 472, 1, p. 171-179 9 p.

Research output: Contribution to journalArticle

Molecular beams
Ultrashort pulses
laser spectroscopy
molecular beams
sprayers
7 Citations (Scopus)

Development of an electric field sensor based on second harmonic generation with electro-optic materials

Vasa, N. J., Kawata, Y., Tanaka, R. & Yokoyama, S., Apr 30 2007, In : Journal of Materials Processing Technology. 185, 1-3, p. 173-177 5 p.

Research output: Contribution to journalArticle

Electrooptical effects
Harmonic generation
Electric field measurement
Electric fields
Sensors
30 Citations (Scopus)

Interstitial accommodation of C60 in a surface-supported supramolecular network

Nishiyama, F., Yokoyama, T., Kamikado, T., Yokoyama, S., Mashiko, S., Sakaguchi, K. & Kikuchi, K., Jan 8 2007, In : Advanced Materials. 19, 1, p. 117-120 4 p.

Research output: Contribution to journalArticle

Molecules
Nanopores
Porphyrins
Derivatives
Adsorption

Single-mode polymer DBR lasers with two-dimensional microcavity structures

Yokoyama, S., Jan 2007, In : IEICE Transactions on Electronics. E90-C, 1, p. 135-138 4 p.

Research output: Contribution to journalArticle

DBR lasers
Dendrimers
Dye lasers
Microcavities
Laser modes
26 Citations (Scopus)

Superfocusing modes of surface plasmon polaritons in conical geometry based on the quasi-separation of variables approach

Kurihara, K., Otomo, A., Syouji, A., Takahara, J., Suzuki, K. & Yokoyama, S., Oct 12 2007, In : Journal of Physics A: Mathematical and Theoretical. 40, 41, p. 12479-12503 25 p.

Research output: Contribution to journalArticle

Surface Plasmon Polariton
Separation of Variables
Wave equations
polaritons
wave equations
2006
6 Citations (Scopus)

Control of multiphoton process within diffraction limit space in polymer microstructures

Nakahama, T., Yokoyama, S., Miki, H. & Mashiko, S., Mar 21 2006, In : Thin Solid Films. 499, 1-2, p. 406-409 4 p.

Research output: Contribution to journalConference article

Multiphoton processes
Optical recording
Polymers
Photons
Diffraction
20 Citations (Scopus)

Control of photonic bandgaps in chiral liquid crystals for distributed feedback effect

Furumi, S., Yokoyama, S., Otomo, A. & Mashiko, S., Mar 21 2006, In : Thin Solid Films. 499, 1-2, p. 322-328 7 p.

Research output: Contribution to journalConference article

Liquid Crystals
Liquid crystals
Photonics
Energy gap
liquid crystals
14 Citations (Scopus)

Control of single supramolecular chain of porphyrin on a copper surface

Kamikado, T., Sekiguchi, T., Yokoyama, S., Wakayama, Y. & Mashiko, S., Mar 21 2006, In : Thin Solid Films. 499, 1-2, p. 329-332 4 p.

Research output: Contribution to journalConference article

Porphyrins
porphyrins
Copper
copper
Coordination Complexes
174 Citations (Scopus)

Laser emission from a polymer-stabilized liquid-crystalline blue phase

Yokoyama, S., Mashiko, S., Kikuchi, H., Uchida, K. & Nagamura, T., Jan 5 2006, In : Advanced Materials. 18, 1, p. 48-51 4 p.

Research output: Contribution to journalReview article

Polymers
Crystalline materials
Lasers
Liquids
Laser applications
66 Citations (Scopus)

Lasing from two-dimensional photonic crystals using anodic porous alumina

Masuda, H., Yamada, M., Matsumoto, F., Yokoyama, S., Mashiko, S., Nakao, M. & Nishio, K., Jan 19 2006, In : Advanced Materials. 18, 2, p. 213-216 4 p.

Research output: Contribution to journalArticle

Aluminum Oxide
Photonic crystals
Alumina
Wavelength
Periodic structures
23 Citations (Scopus)

Layer-by-layer growth of porphyrin supramolecular thin films

Nishiyama, F., Yokoyama, T., Kamikado, T., Yokoyama, S. & Mashiko, S., Jun 19 2006, In : Applied Physics Letters. 88, 25, 253113.

Research output: Contribution to journalArticle

porphyrins
wire
thin films
scanning tunneling microscopy
hydrogen

Photonic applications of the supermolecular nanostructures with photophysical processes controlled

Otomo, A., Yokoyama, S. & Mashiko, S., Nov 21 2006, Complex Photonic Media. Vol. 6320. 63200H

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

Dendrimers
Nanostructures
Photonics
dendrimers
Molecules
9 Citations (Scopus)

Structures of thin films of tertiary-phenyl-porphyrin derivatives on gold surface

Terui, T., Yokoyama, S., Suzuki, H., Mashiko, S., Sakurai, M. & Moriwaki, T., Mar 21 2006, In : Thin Solid Films. 499, 1-2, p. 157-160 4 p.

Research output: Contribution to journalConference article

Porphyrins
porphyrins
Gold
gold
Derivatives
2 Citations (Scopus)

Synthesis and luminescence properties of benzylthioether dendrons bearing Rhodamine B at the focal point

Miki, H., Otomo, A., Yokoyama, S. & Mashiko, S., Mar 21 2006, In : Thin Solid Films. 499, 1-2, p. 333-337 5 p.

Research output: Contribution to journalConference article

rhodamine B
Bearings (structural)
Dendrimers
rhodamine
Luminescence

Two-photon photopolymeric micro-nano fabrication for polymer device application

Yokoyama, S., Nakahama, T. & Miki, H., Dec 1 2006, Optomechatronic Micro/Nano Devices and Components II. Vol. 6376. 63760F

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

nanofabrication
Nanotechnology
Photons
polymers
photons
2005
13 Citations (Scopus)

Amplified spontaneous emission and laser emission from a high optical-gain medium of dye-doped dendrimer

Yokoyama, S., Nakahama, T. & Mashiko, S., Jan 1 2005, In : Journal of Luminescence. 111, 4 SPEC. ISS., p. 285-290 6 p.

Research output: Contribution to journalArticle

Dendrimers
Optical gain
Spontaneous emission
dendrimers
spontaneous emission

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

Nanoimprint technology for application to photonic devices

Nakao, M., Yokoyama, S. & Masuda, H., Dec 1 2005, In : Proceedings of SPIE - The International Society for Optical Engineering. 6050, 605001.

Research output: Contribution to journalConference article

Nanoimprint
Photonic devices
Photonics
photonics
dye lasers

Photonic crystal templates for organic solid-state laser

Yokoyama, S., Nakahama, T., Mashiko, S., Nakao, M., Yamada, M., Niship, K. & Masuda, H., Dec 1 2005, In : Proceedings of SPIE - The International Society for Optical Engineering. 5926, p. 1-8 8 p., 59260Q.

Research output: Contribution to journalConference article

organic lasers
organic solids
Solid-state Laser
Solid state lasers
solid state lasers
8 Citations (Scopus)

Photonic crystal templates for organic solid-state lasers

Yokoyama, S., Nakahama, T., Mashiko, S., Nakao, M., Yamada, M., Nishio, K. & Masuda, H., Nov 7 2005, In : Applied Physics Letters. 87, 19, p. 1-3 3 p., 191101.

Research output: Contribution to journalArticle

organic lasers
organic solids
solid state lasers
templates
photonics

Polymer based sub-micrometer device for optical applications

Yokoyama, S., Nakahama, T., Mashiko, S., Nakao, M., Nishio, K. & Masuda, H., Dec 1 2005, In : Proceedings of SPIE - The International Society for Optical Engineering. 6050, 60500N.

Research output: Contribution to journalConference article

Dendrimers
Dye lasers
Microcavities
dendrimers
dye lasers
1 Citation (Scopus)

Two-photon-induced polymerization in a laser gain medium for optical microstructure

Yokoyama, S., Nakahama, T., Miki, H. & Mashiko, S., Dec 1 2005, In : Proceedings of SPIE - The International Society for Optical Engineering. 5934, p. 1-8 8 p., 593403.

Research output: Contribution to journalConference article

Dye lasers
Microcavities
Polymerization
dye lasers
Dendrimers
2004
16 Citations (Scopus)

Adsorption-induced conformational changes of porphyrin derivatives and formation of twin superstructures on a copper surface

Sekiguchi, T., Wakayama, Y., Yokoyama, S., Kamikado, T. & Mashiko, S., Oct 1 2004, In : Thin Solid Films. 464-465, p. 393-397 5 p.

Research output: Contribution to journalArticle

Porphyrins
Scanning tunneling microscopy
porphyrins
scanning tunneling microscopy
Copper
81 Citations (Scopus)

Conformation selective assembly of carboxyphenyl substituted porphyrins on Au (111)

Yokoyama, T., Kamikado, T., Yokoyama, S. & Mashiko, S., Dec 15 2004, In : Journal of Chemical Physics. 121, 23, p. 11993-11997 5 p., 5.

Research output: Contribution to journalArticle

Porphyrins
porphyrins
Conformations
Hydrogen
assembly
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

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
17 Citations (Scopus)

Nanoscale organic electroluminescence from tunnel junctions

Guo, X. L., Dong, Z. C., Trifonov, A. S., Miki, K., Wakayama, Y., Fujita, D., Kimura, K., Yokoyama, S. & Mashiko, S., Dec 1 2004, In : Physical Review B - Condensed Matter and Materials Physics. 70, 23, p. 1-4 4 p.

Research output: Contribution to journalArticle

Tunnel junctions
Electroluminescence
tunnel junctions
electroluminescence
Porphyrins
132 Citations (Scopus)

Phototunable photonic bandgap in a chiral liquid crystal laser device

Furumi, S., Yokoyama, S., Otomo, A. & Mashiko, S., Apr 5 2004, In : Applied Physics Letters. 84, 14, p. 2491-2493 3 p.

Research output: Contribution to journalArticle

liquid crystals
photonics
lasers
dyes
oscillations
22 Citations (Scopus)

Tunneling-electron-induced molecular luminescence from a nanoscale layer of organic molecules on metal substrates

Guo, X. L., Dong, Z. C., Trifonov, A. S., Yokoyama, S., Mashiko, S. & Okamoto, T., Feb 9 2004, In : Applied Physics Letters. 84, 6, p. 969-971 3 p.

Research output: Contribution to journalArticle

electron tunneling
luminescence
metals
molecules
decoupling
163 Citations (Scopus)

Vibrationally Resolved Fluorescence from Organic Molecules near Metal Surfaces in a Scanning Tunneling Microscope

Dong, Z. C., Guo, X. L., Trifonov, A. S., Dorozhkin, P. S., Miki, K., Kimura, K., Yokoyama, S. & Mashiko, S., Jan 1 2004, In : Physical Review Letters. 92, 8

Research output: Contribution to journalArticle

metal surfaces
microscopes
fluorescence
scanning
molecules
2003

Control of molecular selective-assembling on metal surface

Yokoyama, T., Kamikado, T., Yokoyama, S., Okuno, Y. & Mashiko, S., Jan 1 2003, Nanotechnology and Nano-Interface Controlled Electronic Devices. Elsevier B.V., p. 49-61 13 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

assembling
metal surfaces
scanning tunneling microscopy
interactions
gold

Dendrimer for Molecular Photonics Application

Yokoyama, S., Jan 1 2003, In : kobunshi. 52, 10, p. 758-762 5 p.

Research output: Contribution to journalArticle

Dendrimers
Photonics
3 Citations (Scopus)

Determining the conformation of a phenylene-linked porphyrin dimer by NMR spectroscopy and quantum chemical calculations

Okuno, Y., Kamikado, T., Yokoyama, S. & Mashiko, S., Aug 1 2003, In : Journal of Molecular Structure: THEOCHEM. 631, 1-3, p. 13-20 8 p.

Research output: Contribution to journalArticle

Porphyrins
porphyrins
Dimers
Nuclear magnetic resonance spectroscopy
Conformations
11 Citations (Scopus)

Effective photocrosslinking reaction of dendrimers through triplet energy transfer

Furumi, S., Otomo, A., Yokoyama, S. & Mashiko, S., Aug 22 2003, In : Thin Solid Films. 438-439, p. 85-89 5 p.

Research output: Contribution to journalConference article

Dendrimers
dendrimers
Cinnamates
Energy transfer
energy transfer
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
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
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
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
13 Citations (Scopus)

Light Emission from Organic Molecules on Metal Substrates Induced by Tunneling Currents

Guo, X. L., Dong, Z. C., Trifonov, A. S., Yokoyama, S., Mashiko, S. & Okamoto, T., Nov 2003, In : Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes. 42, 11, p. 6937-6940 4 p.

Research output: Contribution to journalArticle

Light emission
light emission
Molecules
Monolayers
Substrates
10 Citations (Scopus)

Segregation of molecular overlayers with different structures on a metal surface

Suzuki, H., Miki, H., Yokoyama, S. & Mashiko, S., Aug 22 2003, In : Thin Solid Films. 438-439, p. 97-100 4 p.

Research output: Contribution to journalConference article

metal surfaces
Metals
Boron
Molecules
boron

Single electron tunneling organic devices

Kubota, T., Yokoyama, S., Nakahama, T., Mashiko, S., Noguchi, Y. & Iwamoto, M., Jan 1 2003, Nanotechnology and Nano-Interface Controlled Electronic Devices. Elsevier B.V., p. 31-39 9 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

electron tunneling
nanofabrication
molecules
semiconductor devices
electronics

Spatial light confinement and laser emission from a gain medium containing dendrimer

Yokoyama, S. & Mashiko, S., Jan 1 2003, Nanotechnology and Nano-Interface Controlled Electronic Devices. Elsevier B.V., p. 41-48 8 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

dendrimers
thresholds
lasers
lasing
excitation
9 Citations (Scopus)

Study on laser action from UV-curable chiral nematic liquid crystals

Furumi, S., Yokoyama, S., Otomo, A. & Mashiko, S., Aug 22 2003, In : Thin Solid Films. 438-439, p. 423-427 5 p.

Research output: Contribution to journalConference article

Nematic liquid crystals
liquid crystals
Lasers
Photopolymerization
lasers
3 Citations (Scopus)
Dyes
Tuning
dyes
tuning
Glass
21 Citations (Scopus)

Tunneling electron induced luminescence from monolayered Cu-TBP porphyrin molecules adsorbed on Cu(1 0 0)

Dong, Z. C., Kar, A., Dorozhkin, P., Amemiya, K., Uchihashi, T., Yokoyama, S., Kamikado, T., Mashiko, S. & Okamoto, T., Aug 22 2003, In : Thin Solid Films. 438-439, p. 262-267 6 p.

Research output: Contribution to journalConference article

Electron tunneling
Porphyrins
electron tunneling
porphyrins
Luminescence
20 Citations (Scopus)

Tunneling electron induced photon emission from monolayered H2TBP porphyrin molecules on Cu( 1 0 0 )

Dong, Z. C., Trifonov, A. S., Guo, X. L., Amemiya, K., Yokoyama, S., Kamikado, T., Yamada, T., Mashiko, S. & Okamoto, T., Jun 10 2003, In : Surface Science. 532-535, p. 237-243 7 p.

Research output: Contribution to journalConference article

Electron tunneling
Porphyrins
electron tunneling
porphyrins
Photons
27 Citations (Scopus)

Two-photon-induced polymerization in a laser gain medium for optical microstructure

Yokoyama, S., Nakahama, T., Miki, H. & Mashiko, S., May 12 2003, In : Applied Physics Letters. 82, 19, p. 3221-3223 3 p.

Research output: Contribution to journalArticle

dye lasers
polymerization
microstructure
dendrimers
photons
2002

Inter- and intra-molecular energy transfers of encapsulated dyes in dendrimers

Otomo, A., Zhou, M., Furumi, S., Yokoyama, S. & Mashiko, S., Dec 1 2002, In : Proceedings of SPIE - The International Society for Optical Engineering. 4798, p. 37-43 7 p.

Research output: Contribution to journalConference article

Dendrimers
dendrimers
Energy Transfer
Dyes
Energy transfer
59 Citations (Scopus)

Laser emission from high-gain media of dye-doped dendrimer

Yokoyama, S., Otomo, A. & Mashiko, S., Jan 7 2002, In : Applied Physics Letters. 80, 1, p. 7-9 3 p.

Research output: Contribution to journalArticle

dendrimers
high gain
dye lasers
dyes
lasing