PUBLICATIONS

Lasing from Two-dimensional Photonic Crystals Using Anodic Porous Alumina

H. Masuda, M. Yamada, F. Matsumoto, S. Yokoyama, S. Mashiko, M. Nakao, and K. Nishio

Adv. Mater., 18, pp. 213-126 (2006).

Laser Emission from Three-dimensional Photonic Crystal of Blue-phase Liquid Crystal and Polymer Composite

S. Yokoyama, S. Mashiko, H. Kikuchi, K. Uchida, and T. Nagamura

Adv. Mater., 18, pp. 48-51 (2006).

Control of Multiphoton Process within Diffraction Limit Space in Polymer Microstructures

T. Nakahama, S. Yokoyama, H. Miki, and S. Mashiko

Thin Solid Films, 499, pp. 406-409 (2006).

Synthesis and Luminescence Properties of Benzylthioether Dendrons Bearing Rhodamine B at the Focal Point

H. Miki, A. Otomo, S. Yokoyama, and S. Mashiko

Thin Solid Films, 499, pp. 333-337 (2006).

Photonic Crystal Templates for Organic Solid-state Laser

S. Yokoyama, T. Nakahama, S. Mashiko, M. Nakao, M. Yamada, K. Nishio, and H. Masuda

Appl. Phys. Lett., 87, pp. 191101 1-3 (2005).

Amplified Spontaneous Emission and Laser Emission from a High Optical-gain medium of Dye-doped Dendrimer

S. Yokoyama, T. Nakahama, and S. Mashiko

J. Luminescence, 111, pp. 285-290 (2005). (Invited)

Phototunable Photonic Band-gap in a Chiral Liquid Crystal Laser Device

S. Furumi, S. Yokoyama, A. Otomo, and S. Mashiko

Appl. Phys. Lett., 84, pp.2491-2493 (2004).

Two-photon-induced Polymerization in a Laser Gain Medium for Optical Microstructure

S. Yokoyama, T. Nakahama, H. Miki, and S. Mashiko

Appl. Phys. Lett., 82, pp. 3221-3223 (2003).

Tuning of Laser Frequency in Random Media of Dye-doped Polymer and Glass Particle Hybrid

S. Yokoyama and S. Mahsiko

Jpn. J. Appl. Phys., 42, pp. L970-973 (2003).

Fabrication of Three-dimensional Microstructure in an Optical Gain Medium Using Two-photon-induced Photopolymerization Technique

S. Yokoyama, T. Nakahama, H. Miki, and S. Mashiko

Thin Solid Films, 438, pp. 452-456 (2003).

Electrical Control of the Structure and Lasing in Chiral Photonic Band-gap Liquid Crystals

S. Furumi, S. Yokoyama, A. Otomo, and S. Mashiko

Appl. Phys. Lett., 82, pp. 16-18 (2003).

Effective Photocrosslinking Reaction of Dendrimers through Triplet Energy Transfer

S. Furumi, A. Otomo, S. Yokoyama, and S. Mashiko

Thin Solid Films, 438, pp. 85-89 (2003)

Study on Laser Action from UV-curable Chiral Nematic Liquid Crystals

S. Furumi, S. Yokoyama, A. Otomo, and S. Mashiko

Thin Sold Films, 438, pp. 423-427 (2003).

Laser Emission from High-gain media of Dye-doped Dendrimer

S. Yokoyama, A. Otomo, and S. Mashiko

Appl. Phys. Lett., 80, pp. 7-9 (2002).

Suprafluorescence Action from Rhodamine-cored Dendrimer

S. Yokoyama, T. Nakahama, A. Otomo, and S. Mashiko

Coll. Surf. A, 198, pp. 433-438 (2002).

Photochemical Stability of Encapsulated Laser Dyes in Dendritic Nanoboxes Against Singlet Oxygen

A. Otomo, S. Otomo, S. Yokoyama, and S. Mashiko

Opt. Lett., 27, pp. 891-893 (2002).

Estimation of Organic-molecular Film Structure using Surface-plasmon Resonance Spectroscopy

M. Zhou, A. Otomo, S. Yokoyama, and S. Mashiko

Thin Sold Films, 393, pp. 114-118 (2001).

Spatial Photon Confinement and Supper-radiation from Dye Cored Dendrimer

Interaction between Monomeric Units of Donor-Acceptor Functionalized Azobenzene Dendrimers: Effects on Macroscopic Configuration and First Hyperpolarizability

Intermolecular Coupling Enhancement of the Molecular Hyperpolarizability in Multi-choromophoric Dipolar Dendrons

Intermolecular Coupling Enhancement of the Molecular Hyperpolarizability in NLO Dendrimers

Computational and Experimental Studies of Azobenzene Dendrons for Nonlinear Optical Applications

Super-narrowing Mirrorless Laser Emission in Dendrimer-doped Polymer Waveguide

Ab. Initio Calculations of First Hyperpolarizability for Donor-Acceptor Azobenzene and their Dimers

Molecular Design of Novel Azobenzene Dendrimers

Second Harmonic Generation of Dipolar Dendrons in the Assembled Thin Films

Preparation and Assembled Structure of Dipolr Dendrons Based Electron Donor/Acceptor Azobenzene Branching

Functional Dendritic Macromolecules: Preparation and Optical Properties

Layer-by-Layer Growth of Porphyrin Supermolecular Thin Films

Nanoscale Organic Electroluminescence from Tunnel Junctions

Conformation Selective Assembly of Carboxyphenyl Substituted Porphyrins on Au (111)

Adsorption-induced Conformation Changes of Phorphyrin Derivatives and Formation of Twin Superstructures on a Copper Surface

Vibrationally Resolved Fluorescence from Organic Molecules Near Metal Surface in a Scanning Tunneling Microscope

Tunneling-electron-induced Molecular Luminescence from a Nanoscale Layer of Organic Molecules on Metal Substrates

Segregation of Molecular Overlayers with Different Structures on a Metal Surface

Determining the Conformation of a Phenyene-linked porphyrin Dimer by NMR Spectroscopy and Quantum Chemical Calculations

Molecule Isomers by Using a Scanning Tunneling Microscope

Tunneling Electron Induced Luminescence from Monolayered Cu-TBP Porphyrin molecules adsorbed on Cu (100)

Light Emission from Organic Molecules on Metal Substrate Induced by Tunneling

Tunneling Electron Induced Photon Emission from Monolayered H2TBPP porphyrin on Cu (100)

Novel Rigid-rod 2,6-Diphenylbenzo[1,2-d:4,5-d’]bisthiazole (DPBBT) Derivatives for Second-order Nonlinear Optical Chromophores

Theoretical Study of Aryl-ring Rotation in Arylphorphyrins

Light Emission from Porphyrin Molecules Induced by a Scannin Tunneling Microspce

Molecularly Resolved Dynamics for Two-dimensional Nucleation of Supramolecular Assembly

STM Induced Photon Emission from Adsorbed Porphyrin Molecules on a Cu(100) Surface in Ultrahigh Vacuum

Theoretical Study of Benzonitrile Clusters in the Gas Phase and Adsorption onto a Au(111)-surface

STM-induced Photon Emission from Self-assembled Porphyrin Molecules on a Cu (100) surface

Strong Coupling of the Single Excitation in the Q-like Bands of Phenylene-linked Free-base and Zinc Bacteriochlorin Dimers: A Time-dependent Density Functional Theory Study

Theoretical Prediction of First-order Hyperpolarizabilities of Azobenzene Dendrimers,

Time-dependent Density Functional Calculations of the Q-like Bands of Phenylene-linked Free-base and Zinc Porphyrin Dimers

Nonplanar Adsorption and Orientational Ordering of Porphyrin Molecules on Au (111)

Effect of the Metal/organic Interface Phenomena on the Current-voltage Characteristics of Organic Single Electron Tunneling Device,

Photon Emission Induced by Tunneling Electrons from a Cu(100) Surface Covered with Porphyrin Molecules

Selective Assembly on a Surface of Supramolecular Aggregates with Controlled Size and Shape

A Reaction-path Hamiltonian Described with Quasirectilinear Vibrational Coordinates Constructed from a Nonlinear Combination of Curvilinear Internal Coordinates: Application to Examination of the Reaction CH4+F->CH3+HF

STM Induced Photon Emission from Adsorbed Porphyrin Molecules on a Cu(100) Surface in Ultrahigh Vacuum

The Preparation, Orientation and Electronic Structure of Poly(p-phenylenevinylene) (PPV) Monolayers on Silicon Surfaces

Surface Observation of Langmuir-Blodgett Films of Polyamic Acid Alkylamine Salts and Polyimide by Atomic Force Microscopy and Friction Force Microscopy

STM Studies of Polyimide Monolayers on Gold{111} Surfaces

The Structure of PMDA-PDA Polyimide Monolayers adsorbed on Gold Surfaces

Absolute Orientation of Pendant Chromophores Attached to the Polymer Backbone in Monolayers at Interfaces Studied by Phase Measurement of Second Harmonic Generation

Surface Structure and Orientation of Polyamic Acid Alkylamine Salt Langmuir-Blodgett Films Having an Azobenzene Pendant Unit

Azimuthal Ohotoregulation of a Liquid Crystal with an Azobenzene-Modified Polyimide Langmuir-Blodgett Monolayer

Surface Observation of Phase separated Polymeric LB films Using Scanning Probe Microscopy

Further Investigation of the Preparation Process of Poy(p-phenylenevinilene) Langmuir-Blodgett Films

Novel Orientation of Azobenzene Pendant Group in Hybrid Monolayer Composed of Polyimide LB Film and Alkyl Polysiloxane Self-Assembled Monolayer

Photochemically Inducible and Erasable Dichroism by Molecular Reorientation of Azobenzene Pendant Unit in Polyimide Langmuir-Blodgett Film

Imidization Process in a Dye-Labeled Polyamic Acid Langmuir-Blodgett Film Studied by Optical Second-Harmonic Generation

Displacement Current Generation Across Single Monolayers of Polyamic Acids Having Pendant Groups at the Air-Water Interface

Various Orientations of Pendant Dye Attached to Polyamic Acid L and LB Films Studied by Optical Second-Harmonic Generation Interferometry Technique

Photochemical Memory in Polyimide Langmuir-Blodgett Film with Azobenzene Pendant Group

Photochemically Inducible and Erasable Photomemory in the Polyimide LB Films Possessing Azobenzene Pendant Unit

L Film of Dye-Attached Polyamic Acid and the Imidization Process of its LB Film Studied by Second-Harmonic Generation

Preparation and In-Plane Anisotropic Photobleaching Properties of Polyimide Langmuir-Blodgett Film Having a Photoresponsive p-Nitrobenzene Pendant Group

New Memory System Constructed with Polyimide LB Films Having Azobenzene Pendant Groups: Behavior of In-Plane Anisotropic Photoisomerization, Photoinduced Optical Anisotropy, and Anisotropic Photofading

Synthesis of Ultra-Thin Films of Poly(vinylenebenzothiazole) at Air/Water Interface

Synthesis of Ultra-Thin Films of Polybenzoxazole and Their Electrical Properties

Synthesis of Ultra-Thin Films of Aromatic Polymers at Air/Water Interface