Enhancement of 2-Photon Absorption of a Dye in a Polymer Microsphere Based on an Optical Cavity Effect

スポンサーリンク

概要

• 論文の詳細を見る

• We examined optical cavity effects on the 2-photon absorption efficiency of a dye (Rohdamine B; RhB) doped in polymer microspheres (ion-exchanging resin and poly(methyl methacrylate) (PMMA)). When 1064 nm pulsed-laser light was irradiated on single polymer microspheres doped with RhB under an optical microscope, we clearly observed dye fluorescence from individual microspheres, although the dye was transparent at 1064 nm. We confirmed that the fluorescence intensity was proportional to the square of the laser power for excitation. In contrast, such fluorescence was not observed from RhB doped in a PMMA film, in which the enhancement of a light electric field by an optical cavity effect was never expected. Theoretical calculations indicated that the microsphere possessed several peak values of the quality factor (Q = 10^[2] - 10^[5]) at around certain particle diameters under 1064 nm irradiation. This means that the electromagnetic field of incident light is enhanced through light confinement in a microsphere. Based on these results, we conclude that the 2-photon absorption probability of RhB would be considerably enhanced by the optical cavity effects of the microsphere.

• Japan Society for Analytical Chemistryの論文
• 2010-12-10

著者

• Tsuboi Yasuyuki

  Division Of Chemistry Graduate School Of Science Hokkaido University

• Kitamura Noboru

  Division Of Chemistry Graduate Of Science Hokkaido University

• Shoji Tatsuya

  Division Of Chemistry Graduate School Of Science Hokkaido University

• Shimizu Ryosuke

  Division Of Chemistry Graduate School Of Science Hokkaido University

関連論文

• Laser-Induced Reversible Volume Phase Transition of a Poly(N-isopropylacrylamide) Gel Explored by Raman Microspectroscopy
• Phase Separation of Aqueous Poly(vinyl methyl ether) Solutions Induced by the Photon Pressure of a Focused Near-Infrared Laser Beam
• Fabrication and Characteristic Responses of Integrated Microelectrodes in Polymer Channel Chip
• Spectroscopic Evidence for Cooperative Binding of a Host in Molecular Hinge
• Ruthenium(II) Complex Having Crown-Ether Moiety at 3,3'-Positions on 2,2'-Bipyridine Ligand: Spectroscopic Responses upon Ion Recognition
• Spatially-Resolved Fluorescence Spectroscopic Study on Liquid/Liquid Extraction Processes in Polymer Microchannels
• Photoredox Ability of a Hexarhenium(III) Cluster [Re_6(μ_3-S)_8Cl_6]^
• Hexarhenium(III) Clusters [Re_6(μ_3-S)_8X_6]^(X^-=Cl^-, Br^-, I^-) are Luminescent at Room Temperature
• Energy Gap Dependence of the Nonradiative Decay Rate Constant of 1-Anilino-8-naphthalene Sulfonate in Reverse Micelles
• Unusual Capping Chalcogenide Dependence of the Luminescence Quantum Yield of the Hexarhenium(III) Cyano Complexes[Re_6(μ_3-E)_8(CN)_6]^, E^=Se^>S^>Te^
• Raman Microspectroscopy/Imaging Study on Phase-Vanishing Processes of Fluorous Biphase Systems in Microchannel-Microheater Chips
• Photometric Analyses of Optically-Trapped Single Microparticles in Solution
• Distribution of Zinc Tetraphenylporphine in Single Melamine-Resin/Toluene Microcapsules Studied by Laser Trapping-Microspectroscopy
• Photochemical Ion Receptor Based on a Structurally Distorted Ruthenium(II) Complex Having a Crown-Ether moiety at the 3,3'-Positions on the 2,2'-Bipyridine Ligand
• Channel Shape Effects on the Solution-Flow Characteristics and the Liquid/Liquid Extraction Efficiency in Polymer Microchannel Chips
• Polymer Channel Chips as Versatile Tools in Microchemistry
• One-Step Electrochemical Cyanation Reaction of Pyrene in Polymer Microchannel-Electrode Chips
• Nanohole Processing of Polymer Films Based on the Laser-Induced Superheating of Au Nanoparticles
• 3TP4-01 フォトンフォースによる水溶液中のアミノ酸の分子捕捉(その他,第47回日本生物物理学会年会)
• Photoinduced Redox Cycle of Riboflavin at a Water/Oil Interface
• Time-Resolved Total Internal-Reflection Fluorometry of 1-Pyrene Sulfonate Anion at a Liquid/Liquid Interface
• Photocyanation of Pyrene in an Oil-in-Water Emulsion System
• Three-dimensional Structure of J Aggregates of Pseudoisocyanine Chloride Dyes at a Mica/Solution Interface Revealed by AFM
• Fluorescence Dynamic Anisotropy of Spinach Calmodulin Labeled by a Fluorescein Chromophore at Cys-26e : 689-691
• Optical trapping-chemical analysis of single microparticles in solution
• An Application of Plastic Microchannel-Microheater Chips to a Thermal Synthetic Reaction
• CdS Nanocrystal/Chelate Polymer Hybrid Systems: Controls of Optical and Morphological Properties by Monochromatic Photoirradiation
• Molecular Probe for a Fluorous Medium : Long-Lived Phosphorescence of α-Diketones in Perfluoromethylcyclohexane at Room Temperature
• Time-Resolved Total Internal Reflection Fluorometry Study on Chemical and Structural Characteristics at Water/Oil Interfaces
• Effects of Light-Scattering Coefficient of Adsorbent in Diffuse Reflectance Spectroscopy of Dye-Doped Microparticles
• Interfacial Mass Transfer across a Single Microdroplet/Water Boundary. Laser Trapping and Generation-Collection Experiments at a Microelectrode Array
• Pyrazolato- and 3,5-Dimethylpyrazolato-Bridged Dinuclear Platinum(II), Palladium(II), and Their Mixed-Metal Complexes of 2,2'-Bipyrimidine. Syntheses, Structures, and Luminescent Properties
• Enhancement of 2-Photon Absorption of a Dye in a Polymer Microsphere Based on an Optical Cavity Effect
• Laser Trapping-Picosecond Fluorescence Microspectroscopy of Single Microdroplets under High Pressure : Droplet-Size and Pressure Effects
• Characteristic Behavior of an Electron-Transfer Reaction across a Tributyl Phosphate Droplet/Water Interface: Micrometer Droplet-Size Effect
• Liquid-Junction Potential Dependence of the Electron Transfer Rate across a Single-Microdroplet/Water Interface
• Kinetic Analyses of an Electrochemically-Induced Reaction through a Generation-Collection Mode of Twin-Microband Electrodes
• Plasmon-Based Optical Trapping of Polymer Nano-Spheres as Explored by Confocal Fluorescence Microspectroscopy: A Possible Mechanism of a Resonant Excitation Effect
• Crystallization of Lysozyme Based on Molecular Assembling by Photon Pressure
• Nanosecond Time-Resolved Observations of Laser Ablation of Silver in Water

もっと見る 閉じる

スポンサーリンク