原著論文
2014年度～ 計( 37 )件
| S. Sasaki, K. Masaoka, and Y. Koike, "Random depolarization film design based on modulation transfer function measurements of displays with different pixel pitches," Applied Optics, Vol. 63, Issue 11, pp. 2900-2905, April, 2024. |
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| K. Muramoto and Y. Koike, "Stabilized Plastic Optical Fiber Link Even Without a Physical-Contact Fiber Connection," Journal of Lightwave Technology, Vol. 42, Issue 2, pp. 875-881, January, 2024. |
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| S. Sasaki, M. Udono, and Y. Koike, "Random depolarization film design for real-color displays," Applied Optics, Vol. 61, Issue 3, pp. 669-675, January, 2022. |
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| Y. Koike and K. Muramoto, "Error-free PAM-4 transmission by a high-speed plastic optical fiber without forward error correction," Optics Letters, Vol. 46, No. 15, August 2021. |
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| T. Akashi, A. Inoue, and Y. Koike, "Low-Noise Graded-Index Plastic Optical Fiber Achieved by Specific Copolymerization Process," Journal of Lightwave Technology, Vol. 39, Issue 11, June, 2021. |
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| S. Sasaki, M. Udono, and Y. Koike, "Real-Color Displays Realized by Randomized Polarization," Applied Optics, Vol. 60, No. 11, pp. 3108-3113, April, 2021. |
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| K. Watanabe, Y. Kobayashi, and Y. Koike, "Proposal of Novel Temperature-Independent Zero-Zero-Birefringence Polymer with High Heat-Resistance," (Invited Paper for Special Section on Electronic Displays), IEICE Trans. Electron., Volume E104-C No.2, Feb., 2021. |
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| K. Muramoto, A. Inoue and Y. Koike, "Noise and Distortion Reduction in OFDM Radio-Over-Fiber Link by Graded-Index Plastic Optical Fiber," Photonics Technology Letters, Vol. 32, Issue 13, pp. 835-838, July, 2020 |
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| A. Inoue and Y. Koike, "Low-noise radio over graded-index plastic optical fiber," Optics Letters, Vol. 45, Issue 12, pp. 3192-3195, 2020. |
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| K. Shikama and Y. Koike, "Reflowable Optical Connector with Glass-Ceramic Ferrule for Advanced Pluggable Transceiver Packaging," Optical Fiber Technology, Vol. 54, 102074, 2020. |
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| K. Shikama, A. Aratake, and Y. Koike, "Analysis of Nano-Creep Deformation of Epoxy Adhesive in Optical Fiber Connector for Long-Term Reliability Prediction," Optical Fiber Technology, Vol. 52, 101975, 2019. |
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| K. Muramoto, A. Inoue and Y. Koike, "Nonlinear Distortion Reduction Effect of Graded-Index Plastic Optical Fiber," IEEE Photon. Technol. Lett. Vol. 31, No. 10, pp. 791-794, 2019. |
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| A. Inoue and Y. Koike, "Unconventional plastic optical fiber design for very short multimode fiber link," Opt. Express vol. 27 no. 9, pp. 12061-12069, 2019. |
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| A. Inoue and Y. Koike, "Intrinsically Stabilized Plastic Optical Fiber Link Subject to External Optical Feedback,"IEEE Photon. J. Vol. 11, No. 1, 7201207, 2019. |
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| A. Inoue and Y. Koike, "Low-Noise Graded-Index Plastic Optical Fiber for Significantly Stable and Robust Data Transmission," Journal of Lightwave Technology, Vol. 36, No. 24, 5887-5892, 2018. |
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| Y. Kaseda, A. Inoue and Y. Koike, "Significantly Robust Data Transmission by Ballpoint-pen Interconnect for Graded-index Plastic Optical Fiber," Journal of Lightwave Technology Vol. 36, Issue 18, 4090-4098, 2018. |
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| M. A. Illarramendi, J. Zubia, I. Bikandi, I. Ayesta, I. Parola, I. Aramburu , J. Arrue, A. Tagaya, and Y. Koike, "Pump-Polarization Effects in Dye-Doped Polymer Optical Fibers," Journal of Lightwave Technology, Vol. 36, Issue 18, 4167-4173, 2018. |
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| I. Ayesta, M. A. Illarramendi, J. Arrue, I. Parola, F. Jiménez, J. Zubia, A. Tagaya and Y. Koike, "Optical Characterization of Doped Thermoplastic and Thermosetting Polymer-Optical-Fibers," Polymers, Vol. 9, No. 3, Article No. 90, 2017. |
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| A. Inoue and Y. Koike, "Misalignment Tolerance of Pluggable Ballpoint-Pen Interconnect of Graded-Index Plastic Optical Fiber for 4K/8K UHD Display," IEICE TRANS. Electron., Invited paper, Vol. E99-C, No. 11, pp. 1271-1276, 2016. |
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| K. Minakawa, K. Koike, N. Hayashi, Y. Koike, Y. Mizuno and K. Nakamura, "Dependence of Brillouin Frequency Shift on Water Absorption Ratio in Polymer Optical Fibers," J. Appl. Phys. Vol. 119, pp. 223102, 2016. |
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| I. Parola, M. A. Illarramendi, J. Arrue, I. Ayesta, F. Jiménez, J. Zubia, A. Tagaya, and Y. Koike, "Characterization of the Optical Gain in Doped Polymer Optical Fibres," Journal of Luminescence, Vol. 177, pp. 1-8, 2016. |
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| M. Shikanai, A. Tagaya, and Y. Koike, "Temperature-independent zero-birefringence polymer for liquid crystal displays," Applied Physics Letters, Vol. 108, Issue 13, 131902-1/4, 2016. |
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| Y. Koike and A. Inoue "High-Speed Graded-Index Plastic Optical Fibers and Their Simple Interconnects for 4K/8K Video Transmission," Journal of Lightwave Technology, Vol. 34, No. 6, 2016. |
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| K. Minakawa, K. Koike, Q. Du, N. Hayashi, Y. Koike, Y. Mizuno, and K. Nakamura, "Temperature Dependence of Brillouin Frequency Shift in Polymers Controlled by Plasticization Effect," Journal of Applied Physics, Vol. 117, Issue 14, 144505-1/5, 2015. |
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| Y. Shitanoki, S. J. Bennison, and Y. Koike, "Structural Behavior Thin Glass Ionomer Laminates with Optimized Specific Strength and Stiffness," Composite Structures, Vol. 125, pp. 615-620, 2015. |
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| H. Shafiee, S. Beppu, S. Iwasaki, A. Tagaya, and Y. Koike, "Mechanisms of Orientational and Photoelastic Birefringence Generation of Methacrylates for the Design of Zero-Zero-Birefringence Polymers," Polymer Engineering & Science, Vol. 55, Issue 6, pp. 1330-1338, 2015. |
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| S. Beppu, H. Hotta, H. Shafiee, A. Tagaya, and Y. Koike, "Investigation of optical and thermal properties of N-(alkyl-substituted) maleimides for use in zero-zero-birefringence polymer," Applied Optics, Vol. 54, Issue 4, pp. 779-788, 2015. |
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| K. Koike, A. Suzuki, K. Makino, and Y. Koike, "Effects of Para-Fluorine Substituent of Polystyrene on Gradient-Index Fiber-Optic Properties," Optical Materials, Vol. 39, pp.143-147, 2015. |
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| K. Koike, T. Araki, and Y. Koike, "A Highly Transparent and Thermally Stable Copolymer of 1-Adamantyl Methacrylate and Styrene," Polymer International, Vol. 64, Issue 2, pp. 188-195, 2015. |
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| Y. Okamoto, H. Zhang, F. Mikes, Y. Koike, Z. He, and T. C. Merkel, "New Perfluoro-Dioxolane-Based Membranes for Gas Separations," Journal of Membrane Science, Vol. 471, pp. 412-419, 2014. |
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| Y. Shitanoki, S. J. Bennison, and Y. Koike, "Analytic Models of a Thin Glass-Polymer Laminate and Development of a Rational Engineering Design Methodology," International Journal of Applied Mechanics, Vol. 81, Issue 12, 121009-1/7, 2014. |
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| H. Yoshida, R. Nakao, Y. Masabe, K. Koike, and Y. Koike, "Effect of Cladding-Layer Glass Transition Temperature on Thermal Resistance of Graded-Index Plastic Optical Fibers," Polymer Journal, Vol. 46, pp. 823-82, 2014. |
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| Y. Shitanoki, S. J. Bennison, and Y. Koike, "A Practical, Nondestructive Method to Determine the Shear Relaxation Modulus," Polymer Testing, Vol. 37, pp. 59-67, 2014. |
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| Y. Shitanoki, S. J. Bennison, and Y. Koike, "A Rational Strength Prediction Approach to the Design of Double-glass Photovoltaic Modules," IEEE Journal of Photovoltaics, Vol. 4, No. 4, pp. 1071-1078, 2014. |
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| A. Inoue, R. Furukawa, M. Matsuura, and Y. Koike, "Reflection Noise Reduction Effect of Graded-Index Plastic Optical Fiber in Multimode Fiber Link," Optics Letters, Vol. 39, No. 12, pp. 3662-3665, 2014. |
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| K. Minakawa, K. Koike, N. Hayashi, Y. Koike, Y. Mizuno, and K. Nakamura, "Dependece of Brillouin Frequency Shift on Temperature in Poly(pentafluorostyrene)-Based Polymer Optical Fibers Estimated by Acoustic Velocity Measurement," IEICE Electronic Express, Vol. 11, No. 10, pp. 1-7, 2014. |
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| K. Koike, T. Araki, and Y. Koike, " "Influence of Dielectric Fluctuation on Light-Scattering Properties of Random Copolymers in Bulk," Polymer, Vol. 55, No. 11, pp. 2697-2703, 2014. |
平成25年度 計( 17 )件
| A. Takahashi, A. Inoue, T. Sassa, and Y. Koike, "Fluorination Effects on Attenuation Spectra of Plastic Optical Fiber Core Materials," Optical Materials Express, Vol. 3, No. 5, pp. 658-663, 2013. |
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| H. Teng, Z. Wan, Y. Koike, and Y. Okamoto, "Thermal and Optical Properties of Highly Fluorinated Copolymers of Methacrylates," Polymers for Advanced Technologies, Vol. 24, No. 5, pp. 520-523, 2013. |
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| K. Makino, Y. Akimoto, K. Koike, A. Kondo, A. Inoue, and Y. Koike, "Low Loss and High Bandwidth Polystyrene-based Graded Index Polymer Optical Fiber," Journal of Lightwave Technology, Vol. 31, No. 14, pp. 2407-2412, 2013. |
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| A. Inoue, T. Sassa, R. Furukawa, K. Makino, A. Kondo, and Y. Koike, "Efficient Group Delay Averaging in Graded-Index Plastic Optical Fiber with Microscopic Heterogeneous Core," Optics Express, Vol. 21, No. 14, pp. 17379-17385, 2013. |
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| N. Schlepple, M. Nishigaki, H. Uemura, H. Furuyama, Y. Sugizaki, H. Shibata, and Y. Koike, "4A x 10 Gbit/s Full-Duplex Optical Link with Compact Optical Sub-Assemblies and Thin GI 50/125 Plastic Optical Fibre Ribbon," Electronics Letters, Vol. 49, No. 13, pp. 835-836, 2013. |
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| A. Sengupta, Y. Koike, and Y. Okamoto, "Investigation of the Physical Properties of Poly(ortho- and para-trifluoromethoxy styrenes)," Macromolecular Chemistry and Physics, Vol. 214, Issue 15, pp. 1734-1737, 2013. |
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| T. Toma, S. Suzuki, H. Tokura, Y. Inaba, T. Ogi, and Y. Koike, "Evaluation of 4K Ultra Definition Video for Telemedicine - Possibility of teledermatology Applications - Japanese Journal of Telemedicine and Telecare, Vol. 9, No. 2, pp. 66-73, 2013. |
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| M. A. Illarramendi, J. Arrue, I. Ayesta, F. Jiménez, J. Zubia, I. Bikandi, A. Tagaya, and Y. Koike, "Amplified Spontaneous Emission in Graded-Index Polymer Optical Fibers: Theory and Experiment," Optics Express, Vol. 21, No. 20, pp. 24254-24266, 2013. |
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| T. Toma, H. Asada, T. Ogi, and Y. Koike, "High-Speed Optical Home Network Using Graded Index Plastic Optical Fibers for a Smart House," Advances in Computer Science : an International Journal, Vol. 2, Issue 5, No. 6, pp. 141-149, 2013. |
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| R. Furukawa, M. Nagata, K. Mishima, M. Matsuura, A. Inoue, A. Tagaya, and Y. Koike, "Core stress Distribution of Phase Shifting Multimode Polymer Optical Fiber," Applied Physics Letters, Vol. 103, No. 21, 213301-1/4, 2013. |
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| K. Koike, F. Mikes, H. Zhang, Y. Koike, and Y. Okamoto, "Synthesis and Characterization of Copolymers of Perfluoro(2-methylene-4,5-dimethyl-1,3-dioxolane) and Perfluoro(2-methylene-1,3-dioxolane)," Journal of Fluorine Chemistry, Vol. 156, pp. 198-202, 2013. |
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| T. Toma, H. Takizuka, T. Torikai, H. Suzuki, T. Ogi, and Y. Koike, "Development of a Household High-Definition Video Transmission System Based on Ballpoint-Pen Technology," Synthesiology, accepted in Nov. 2013. |
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| S. Beppu, S. Iwasaki, F. Shafiee, A. Tagaya, and Y. Koike, "Design and Synthesis of Zero-Zero-Birefringence Polymers Using N-Methylmaleimide," Journal of Applied Polymer Science, accepted on Jan. 14, 2014. |
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| A. Sengupta, K. Koike, Y. Koike, and Y. Okamoto, "New Insights into Dopant Design for Graded-Index Plastic Optical Fibers for Transmission at 850 nm," Optical Materials, Vol. 36, No. 4, pp. 782-786, 2014. |
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| K. Koike, H. Teng, Y. Koike, and Y. Okamoto, "Effect of Dopant Structure on the Refractive Index and Glass Transition Temperature of Polymeric Fiber-Optic Materials," Polymers for Advanced Technologies, Vol. 25, No. 2, pp. 204-210, 2014. |
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| K. Koike, Q. Du, S. Nishino, and Y. Koike, "Light Scattering of Ideal Random Copolymers in Bulk," Polymer, Vol. 55, No. 3, pp. 878-885, 2014. |
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| M. Matsuura, R. Furukawa, Y. Matsumoto, A. Inoue, and Y. Koike, "Evaluation of Modal Noise in Graded-Index Silica and Plastic Optical Fiber Links for Radio-over-Multimode Fiber Systems," Optics Express, Vol. 22, No. 6, pp. 6562-8, 2014. |
平成24年度 計( 10 )件
| K. Makino, T. Kado, A. Inoue, and Y. Koike, "Low Loss Graded Index Polymer Optical Fiber with High Stability under Damp Heat Conditions," Optics Express, vol. 20, no. 12, pp. 12893-12898, 2012. |
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| L. Lou, A. Tagaya, Y. Ide, Y. Koike, and Y. Okamoto, "Copolymers of Methyl Methacrylate with N-Trifluorophenyl Maleimides:High Glass Transition Temperature and Low Birefringence Polymers," Journal of Polymer Science Part A: Polymer Chemistry Journal, vol. 50, no. 17, pp. 3530-3536, 2012. |
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| H. Ito, S. Yanai, S. Oda, A. Tagaya, and Y. Koike, "Zero-Birefringence Pressure-Sensitive Adhesives," AIP Advances, vol. 2, no. 2, 022142-1/5, 2012. |
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| A. Inoue, T. Sassa, K. Makino, A. Kondo, and Y. Koike, "Intrinsic Transmission Bandwidths of Graded-Index Plastic Optical Fiber," Optics Letters, vol. 37, no. 13, pp. 2583-2585, 2012. |
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| S. Iwasaki, Z. Sato, H. Shafiee, A. Tagaya, and Y. Koike, "Design and Synthesis of Zero-Zero-Birefringence Polymers in a Quaternary Copolymerization System," Polymer, Vol. 53 pp. 3287-3296, 2012. |
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| T. Kurashima, K. Sakuma, T. Arai, A. Tagaya, and Y. Koike, "A Polarized Laser Backlight Using a Zero-Zero-Birefringence Polymer for Liquid Crystal Displays," Optical Review, Vol. 19, No. 6, pp. 415-418, 2012. |
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| N. Schlepple, M. Nishigaki, H. Uemura, K. Obara, H. Furuyama, Y. Sugizaki, H. Shibata, and Y. Koike, "40 Gbps High-Speed Link over Thin GI 50/125 Plastic Optical Fibers and Compact Optical Sub-Assembly," IEEE Photonics Technology Letters, Vol. 24, No.19, pp. 1670-1672, 2012. |
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| F. Mikes, H. Teng, Y. Koike, and Y. Okamoto, "Alternating Copolymers of Hexafluoroisobutylene with Vinyl Trifluoroacetate and Vinyl Pentafluorobenzoate," Journal of Polymer Science Part A, Polymer Chemistry, Vol. 50, No.22, pp. 4717-4720, 2012. |
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| N. Schlepple, M. Nishigaki, H. Uemura, H. Furuyama, K. Obara, H. Furuyama, Y. Sugizaki, H. Shibata, and Y. Koike, "Optoelectrical High-Speed HDMI Cable with Compact Optical Sub-Assembly and 4x3.4 Gb/s Plastic Optical Fiber Link," Electronics Letters, Vol.48, No.25, pp.1611-1613, 2012. |
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| S. Iwasaki, Z. Sato, H. Shafiee, A. Tagaya, and Y. Koike, "Design of Zero-Zero-Birefringence Polymers in Methacrylate Copolymer Systems Containing Trichloroethyl Methacrylate," Journal of Applied Polymer Science, published online, March 8, 2013. |
平成23年度 計( 10 )件
| M. Asai, M. Shibayama, and Y. Koike, "Common Origin of Dynamics Heterogeneity and Cooperatively Rearranging Region in Polymer Melts," Macromolecules, vol.44, no.16, pp6615-6624, 2011. |
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| M. Asai, Y. Yamaki, S. Takahashi, and Y.Koike, "High-Thermally Stable and High-bandwidth Graded Index Plastic Optical Fiber for the Vehicle Networks," Journal of Polymer Science Part B: Polymer Physics, accepted on July, 2011. |
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| L. Lou, Y. Koike, and Y. Okamoto, "A Novel Copolymer of Methyl Methacrylate with N-Pentafluorophenyl Maleimide:High Glass Transition Temperature and Highly Transparent Polymer," Polymer, vol. 52, no. 16, pp. 3560-3564, 2011. |
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| A. Tagaya and Y. Koike, "Compensation and Control of the Birefringence of Polymers for Photonics," Polymer Journal, vol. 44, no.4, pp. 306-314, 2012. |
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| T. Kojo, A. Tagaya, and Y. Koike, "Mechanism of Generation of Birefringence in Poly(Methyl Methacrylate/Styrene)," Polymer Journal, vol. 44, no. 2, pp. 167-173, 2012. |
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| R. Nakao, A. Kondo, and Y. Koike, "Fabrication of High Glass Transition Temperature Graded-Index Plastic Optical Fiber: Part 1 - Material Preparation and Characterizations," Journal of Lightwave Technology, vol. 30, no. 2, pp. 247-251, 2012. |
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| A. Tagaya, L. Lou, Y. Ide, Y. Koike and Y. Okamoto, "Improvement of the Physical Properties of Poly(Methyl Methacrylate) by Copolymerization with N-Pentafluorophenyl Maleimide; Zero-Orientational and Photoelastic Birefringence Polymers with High Glass Transition Temperatures," Scinece China Chemistry, in press, 2012. |
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| Y. Akimoto, M. Asai, K. Koike, K. Makino, and Y. Koike, "Poly(styrene)-Based Graded-Index Plastic Optical Fiber for Home Networks," Optics Letters, in press, 2012. |
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| R. Nakao, A. Kondo, and Y. Koike, "Fabrication of High Glass Transition Temperature Graded-Index Plastic Optical Fiber: Part 2 - Fiber Fabrication and Characterizations," Journal of Lightwave Technology, accepted on Jan. 11, 2012. |
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| Y. Mukawa, A. Kondo, and Y. Koike, "Optimization of the Refractive Index Distribution of Graded-index Polymer Optical Fiber by the Diffusion-assisted Fabrication Process," Applied Physics Express, accepted on March 2, 2012. |
平成22年度 計(11)件
| M. Asai, Y. Inuzuka, K. Koike, S. Takahashi, and Y. Koike, "High-bandwidth Graded-Index Plastic Optical Fiber with Low-Attenuation, High-Bending Ability, and High-Thermal Stability for Home-Networks," Jounal of Lightwave Technology, accepted on March 15, 2011. |
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| Y.Yamaki, M.Asai, S.Takahashi, and Y.Koike, "Novel Dopant for Graded-Index Polymer Optical Fiber with High-Thermal Stability," Applied Physics Express , Volume 3, Issue 7, 071601-1/3, 2010. |
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| L. Lou, Y. Koike, Y. Okamoto, "Synthesis and Properties of Copolymers of Methyl Methacrylate with 2,3,4,5,6-Pentafluoro and 4-Trifluoromethyl 2,3,5,6-Tetrafluoro Styrenes: An Intrachain Interaction between Methyl Ester and Fluoro Aromatic Moieties," Journal of Polymer Science Part A: Polymer Chemistry, Vol. 48, Issue 22, pp. 4938-4942, 2010. |
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| Y. Koike and K. Koike, "Progress in Low-Loss and High-Bandwidth Plastic Optical Fibers," Journal of Polymer Science Part B: Polymer Physics, Volume 49, Issue 1, pp. 2-17, 2011. |
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| H. Teng, L. Lou, K. Koike, Y. Koike, Y. Okamoto, "Synthesis and Characterization of Trifluoromethyl Substituted Styrene Polymers and Copolymers with Methacrylates: Effects of Trifluoromethyl Substituent on Styrene," polymer, Volume 52, Issue 4, pp. 949-953, 2011. |
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| M. Asai, Y. Mukawa, S.Takahashi, and Y. Koike, "Methodological Approach to Control Refractive Index Profile of Graded-Index Polymer Optical Fiber," Industrial & Engineering Chemistry Research, Volume 50, Issue 7, pp. 3895-3899, 2011. |
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| H. Shafiee, A. Tagaya, and Y. Koike, "Design and Synthesis of a Zero-Photoelastic Birefringence Polymer with a High Glass-Transition Temperature by a Random Copolymerization Method," Polymer Journal (2011) Volume 43, pp306-312, 2011. |
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| M. Asai, M. Awata, and Y. Koike, "Effects of Rotation of Benzene Rings on Diffusion of Solvents in Polymer Melts," Industrial & Engineering Chemistry Research, Volume 50, Issue 6, pp. 3280-3286, 2011. |
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| H. Shafiee, K. Shikama, A. Tagaya, F. Hardinghaus, T. Miyaji, K. Kohler, and Y. Koike, "Control of the Birefringence Dispersion of an Optical Polymer by Doping with an Inorganic Crystal," Japanese Journal of Applied Physics, Volume 50, Issue 3, 032602-1/6, 2011. |
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| D. Kobayashi, A. Tagaya, and Y. Koike, "A High-Retardation Polymer Film for Viewing Liquid Crystal Displays through Polarized Sunglasses without Chromaticity Change in the Image," Japanese Journal of Applied Physics, Volume 50, Issue 4, 042602-1/6, 2011. |
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| Mikes, J. Baldrian, H. Teng, Y. Koike, Y. Okamoto, "Characterization and Properties of Semicrystalline and Amorphous Perfluoropolymer: poly(perfluoro-2-methylene-1,3-dioxolane)," Polymers for Advanced Technologies, in press, 2011. |
