総説(英語) 書籍 原著論文 プロシーディング 総説(日本語) その他 招待講演 国際学会発表  国内学会発表 特許


I. Books(書籍)

(14)「ゼロからの最速理解 プラスチック材料化学」
佐々木健夫
コロナ社(2021) 出版社のページ

(13)The Photorefractive Effect in Liquid Crystals
Takeo Sasaki, Khoa Van Le, Yumiko Naka and Takafumi Sassa
Liquid Crystals - Self-Organized Soft Functional Materials for Advanced Applications
(Irina Carlescu (Ed) Intech), Chapter 5, 76-97 (2019).
Open Access Book   ダウンロード (ページ右の"DOWNLOAD"をクリック)

(12)Poly(olefin sulfone)s
Takeo Sasaki, Khoa Van Le and Yumiko Naka
Alkenes and Olefins (R. Davarnejad and B. Sajjadi (Ed) InTech), Chapter 5,
121-144 (2018)
Open Access Book  ダウンロード (ページ右の"DOWNLOAD"をクリック)

(11)「ゼロからの最速理解 量子化学」 出版社のページ
佐々木健夫
コロナ社 (2017).

(10)Dynamic Amplification of Optical Signals by Photorefractive Ferroelectric Liquid Crystals
Takeo Sasaki
Ferroelectric Materials - Synthesis and Characterization ( Aime Pelaiz Barranco (Ed) InTech), Chapter 6, 125-150 (2015).
Open Access Book  ダウンロード (ページ右の"DOWNLOAD"をクリック)

(9)Photorefractive Effect in Ferroelectric Liquid Crystals
Takeo Sasaki
Advances in Ferroelectrics  (T. Jevtic (Ed.) INTECH), Chapter 22, 499-532 (2012).
Open Access Book  ダウンロード (ページ右の"DOWNLOAD"をクリック)

(8)「光塩基発生剤を利用する分解性ポリマーの開発」
佐々木健夫
高分子の架橋と分解V (角岡正弘,白井正充 監修、CMC出版), 第8章4節 197-209 (2012).

(7)Photorefractive Ferroelectric Liquid Crystals
Takeo Sasaki
Ferroelectrics / Physical Effects  (M. Lallart (Ed.) INTECH), Chapter 21, 487-506 (2011).
Open Access Book  ダウンロード (ページ右の"DOWNLOAD"をクリック)

(6)「フォトリフラクティブ効果と液晶フォトリフラクティブ材料の開発」
佐々木健夫
最新フォトニクスポリマー材料と応用技術 (小池康博、平坂雅男 監修、CMC出版), 第5章, 151-157 (2011).

(5)「複合材料−有機フォトリフラクティブマテリアル」
佐々木健夫
自己組織化ハンドブック (国武豊喜 監修, NTS)第3章, 791-793 (2009).

(4)「液晶系フォトリフラクティブ材料」
佐々木健夫
光機能性高分子材料の新たな潮流 (市村國宏 編、CMC出版)第5章, 328-344 (2008).

(3) 「フォトリフラクティブ液晶材料」
佐々木健夫
液晶ポリマーの改質と最新応用技術 (技術情報協会), 第6章第6節,303-321(2006).

(2) 「フォトリフラクティブ液晶材料」
佐々木健夫
高分子液晶の新展開 (小出直之 編, CMC出版) 第3章「光記録材料」, 202-218 (2004)

(1) 「強誘電体液晶における自発分極ベクトル転向型高速応答フォトリフラクティブ効果」
佐々木健夫
新しいフォトニクス時代の材料とデバイス増補改訂版 (速水諒三 編、TIC出版), 第22章 (2003).

 
II. Original Papers(原著論文)

(85) Agarose hydrogels reinforced by chromonic aggregates
K. V. Le, K. Yamazaki, H. Takemoto, K. Ishiyama, Y. Naka, T. Sasaki
Mol. Cryst. Liq. Cryst., 762, 123-129 (2023).

(84) Photorefractive flexoelectric liquid crystal mixtures and their application to laser ultrasonics
Takeo Sasaki, Takaaki Yagami, Toshinobu Takashi, Kaita Suzuki, Gouta Ikeda, Yukihiro Ishii, Khoa Van Le, and Yumiko Naka
Opt. Mater. Express,. 13, 728-738 (2023).

(83) Photorefractive effects in smectic liquid crystals and their application to laser ultrasonics
T. Sasaki, T. Takashi, G. Ikeda, J. Watanabe, M. Nagaoka, S. Yamazaki, Y. Ishii, K. V. Le, Y. Naka
Asia. J. Phys., 31, 1035-1044 (2022).

(82) Enhanced chromonic stacking assisted by a hydrogel network
Hiroki Shibakura, Khoa V. Le, Yumiko Naka, Takeo Sasaki
Mol. Cryst. Liq. Cryst., 741, 53-62 (2022).

(81) Observation and simulation of toron polymorphism: Effects of surface anchoring, elasticity and electric field in cholesterics with smectic-A phase beneath
Khoa V. Le, Satoshi Aya, Junichi Kougo, Sawako Takahashi, Tomoyo Takezoe, Yumiko Naka, Takeo Sasaki
J. Mol. Liq.,. 349, 118454 (2022).

(80) Photo-induced change in alignment of mesogens using reduction of viologens as a trigger
Satoshi Arai, Mikihiro Kawahara, Khoa V. Le, Takeo Sasaki, Yumiko Naka
Mol. Cryst. Liq. Cryst. 756, 27-37 (2022).

(79) Molecular Design of Viologens to Exhibit Low-Order Liquid-Crystalline Phases
Yumiko Naka, Satoshi Arai, Yusuke Ohgi, Minami Takahashi, Khoa V. Le, Takeo Sasaki
Mater. Adv., 3, 2131-2138 (2022).

(78) Effect of the concentration of chiral compound on the photorefractive effect of flexoelectric smectic liquid crystal blends
Takeo Sasaki, Takuya Hara, Maho Hirakawa, Kaita Suzuki, Khoa Van Le & Yumiko Naka
Mol. Cryst. Liq. Cryst. 740, 1-16 (2022).

(77) Photorefractive smectic liquid crystalline mixtures and their application to remote sensing
Takeo Sasaki, Maho Hirakawa, Kaita Suzuki, Khoa Van Le, and Yumiko Naka
Asia. J. Phys. 30, 999-1005 (2021).

(76) Bulk Alignment of Chromonic Aggregates During Swelling of Hydrogels
Koji Shiraishi, Sawako Takahashi, Khoa V. Le, Yumiko Naka, Takeo Sasaki
Macromol. Rapid Commun., 41, 1900631 (2020).

(75) Nonlinear resistivity in epoxy composites containing Mn‐based ferrite magnetic particles
Hidehito Matsuzaki, Akifumi Suzuki, Yumiko Naka, Khoa V. Le, Takeo Sasaki
Appl. Poly. Sci., 137, 48229 (2020).  Cover Article

(74) Nonlinear Resistivity in Epoxy Composites Containing ZnO Particles and Secondary Particles
Hidehito Matsuzaki, Yumiko Naka, Khoa V. Le, Takeo Sasaki
IEEJ Trans. FM., 139, 453-460 (2019).

(73) Role of each part of cyanobiphenyl-containing polymers in porous-film preparation by using the breath-figure method
Yumiko Naka, Lisa Nagashima, Hiromu Takayama, Khoa, V. Le, Takeo Sasaki
Liq. Cryst., 47, 1139-1144 (2019).

(72) Simultaneous formation behaviour of surface structures and molecular alignment by patterned photopolymerisation
Sayuri Hashimoto, Miho Aizawa, Norihisa Akamatsu, Takeo Sasaki, Atsushi Shisido
Liq. Cryst., 46, 1995-2002 (2019).

(71) Direct fabrication of a q-plate array by scanning wave photopolymerization
Miho AizawaMegumi OtaKyohei Hisano, Norihisa Akamatsu, Takeo Sasaki, Christopher J Barrett, Atsushi Shishido
J. Opt. Soc. Am. B, 36, D47-D51 (2019).

(70) Molecular Disign for Preparation of Hexagonal-Ordered Porous Films Based on Side-Chain-Type Liquid Crystallne Star Polymer
Y. Naka, H. Takayama, T. Koyama, K. V. Le, and T. Sasaki
Langmuir, 34, 6210-6216 (2018).

(69) Chiral lyotropic chromonic liquid crystal composed of disodium cromoglycate doped with water-soluble chiral additives
T. Shirai, S. Min, K. Nakamura, A. Yamaguchi, Y. Naka, T. Sasaki, C. Noel, and K. V. Le
Soft Matter, 14, 9, 1511-1516 (2018).

(68) Enhancement of Photosensitivity of Photorefractive Ferroelectric Liquid Crystal Blends to Green and Red Wavelength Regions Using Oligothiophene Photoconductive Dopants
T. Sasaki, S.Morino, A.Sumiya, Y. Yamamoto, M. Nakano, K. V. Le, Y. Naka, and T. Sassa
J. Phys. Chem. C, 121, 16951-16958 (2017).

(67) Laser irradiation durability of photorefractive ferroelectric liquid crystal blends containing terthiophene photoconductive chiral dopants
T. Sasaki, M. Yoshino, Y. Naka, K. V. Le and T. Sassa
RSC Adv., 6, 70573-70580 (2016).

(66) Dismantlable Thermosetting Adhesives Composed of a Cross-Linkable Poly(olefin sulfone) with a Photobase Generator
T. Sasaki, S. Hashimoto, N. Nogami, Y. Sugiyama, M. Mori, Y. Naka, and K. V. Le
ACS Appl. Mater. Interfaces, 8, 5580-5585 (2016).

(65) Dynamic Amplification of Optical Signals in Photorefractive Ferroelectric Liquid Crystals
T. Sasaki and Y. Naka
Mol. Cryst. Liq. Cryst. 614, 106-117 (2015).

(64) Real-time amplification of light signals in photorefractive ferroelectric liquid crystals
T. Sasaki, S. Kajikawa, and Y. Naka
Asian Journal of Physics Vol. 23, 517-526 (2014).

(63) Dynamic Amplification of Light Signals in Photorefractive Ferroelectric Liquid Crystalline Mixtures
T. Sasaki, S. Kajikawa and Y. Naka
Faraday Discussions, 174, 203-218 (2014).

(62) Photorefractive Effect in Ferroelectric Liquid Crystals
T. Sasaki and Y. Naka
Optical Review, 21, 99-109 (2014). Invited review

(61) Synthesis of Liquid-Crystalline Star Polymers with Sulfonyl Groups in the Central Core and Selective Degradation of their Cores by Base
Y. Naka , H. Kawamura, and T. Sasaki
Mol. Cryst. Liq. Cryst., 593, 141-150 (2014).

(60) Photoinduced Depolymerization of Poly(olefin sulfone)s Possessing Photo-base Generators in the Side-chain: Effect of Spacer-chain Length
T. Sasaki, T. Yoneyama, S. Hashimoto, S. Takemura and Y. Naka
J. Polym. Sci. Part A: Polym. Chem., 51, 3873-3880 (2013).

(59) Real-time dynamic hologram in photorefractive ferroelectric liquid crystal with two-beam coupling gain coefficient of over 800 cm-1 and response time of 8 ms
T. Sasaki, M. Ikegami, T. Abe, D. Miyazaki, S. Kajikawa and Y. Naka
Appl. Phys. Lett., 102, 063306-063309 (2013).
Nature誌のResearch Highlightに取り上げられました


(58) Formation of Hologram in Photorefractive Ferroelectric Liquid Crystals
T. Sasaki, M. Ikegami and Y. Naka
J. Photopolym. Sci. Technol., 25, 681-684 (2012).

(57) Photoinduced Depolymerization in Poly(olefin sulfone) Films Composed of Volatile Monomers Doped with a Photobase Generator
T. Sasaki, T. Kondo, M. Noro, K. Saida, H. Yaguchi and Y. Naka
J. Polym. Sci. Part A: Polym. Chem., 50, 1462-1468 (2012).
Inside Cover に採用されました。

(56) Photorefractive Effect of Photoconductive Liquid Crystalline Mixtures Composed of Photoconductive Chiral Compounds and Liquid Crystal
T. Sasaki, D. Miyazaki, K. Akaike, M. Ikegami and Y. Naka
J. Mater. Chem., 21, 8678-8686 (2011).

(55) Influence of Photoconductivity on the Photorefractive Effect of Ferroelectric Liquid Crystal Mixtures
A. Katsuragi, E. Inoue and T. Sasaki
Mol. Cryat. Liq. Cryst., 548, 107-119 (2011).

(54) Influence of the Physical Properties of Ferroelectric Liquid Crystal Mixtures on the Photorefractive Effect
A. Katsuragi, T. Abe, H. Endo and T. Sasaki
Mol. Cryst. Liq. Cryst., 533, 27-41 (2010).

(53) Atom Transfer Radical Polymerization of Graft Chains onto Polyethylene Film Initiated at Tribromomethyl Unit Introduced by Electron Beam Irradiation
M. Komatsu, T. Kawakami, J. Kanno, T. Sasaki
J. Appl. Polym. Sci., 119, 2533-2538 (2011).

(52) "Two-stage Grafting" to Polyethylene Fiber by Radiation-induced Graft Polymerization and ATRP
M. Komatsu, T. Kawakami, J. Kanno, T. Sasaki
J. Appl. Polym. Sci., 115, 3369-3375 (2010).

(51) Photorefractive Effect of Polymer-Stabilized Ferroelectric Liquid Crystals
T. Sasaki, Y. Nakazawa
J. Phys. Chem. C, 113, 5792-5798 (2009).

(50) Photorefractive Effect of Photoconductive-polymer Stabilized Ferroelectric Liquid Crystals
T. Sasaki, H. Hazato, A. Katsuragi, Y. Nakazawa
Mol. Cryst. Liq. Cryst., 503, 81-98 (2009).

(49) Photoinduced Depolymerization of Poly(olefin sulfone)s Possessing Base Amplifying Groups
T. Sasaki, H. Yaguchi,
J. Polym. Sci. Part A: Polym. Chem., 47, 602-613 (2009).

(48) Photorefractive Effect of Ferroelectric Liquid Crystals with Application of a Biased Alternating Electric Field
N. Moriya, and T. Sasaki
Mol. Cryst. Liq. Cryst., 482, 33-41 (2008).

(47) Photoinduced Depolymerization of Poly(olefin sulfone)s Possessing Photo-base Generating Groups in the Side-chain
H. Yaguchi, and T. Sasaki
Macromolecules, 40, 9332-9338 (2007).

(46) Photorefractive Effect of Ferroelectric Liquid Crystals with Application of Alternating Electric field
T. Sasaki, N. Moriya, and Y. Iwasaki
J. Phys. Chem. C, 111, 17646-17652 (2007).

(45) Relationship between Optical Properties of Immobilized Liquid Crystal Film and that of Polyimide Alignment Layer
M. Yamahara, M. Nakamura, N. Koide, and T. Sasaki
Mol. Cryat. Liq. Cryst., 473, 3-14 (2007).

(44) Relationship between Molecular Orientation of Rubbed Polyimide Alignment Layer and Immobilized Liquid Crystal Film Coated on The Alignment Layer
M. Yamahara, M. Nakamura, N. Koide, and T. Sasaki
Mol. Cryat. Liq. Cryst., 466, 39-52 (2007).

(43) Influence of Rubbing Condition of Polyimide Alignment Layer on Optical Anisotropy of Immobilized Liquid Crystal Film
M. Yamahara, M. Nakamura, N. Koide, and T. Sasaki
Liq. Cryst., 34, 381-387 (2007).

(2) Photorefractive Effect of Ferroelectric Liquid Crystals
T. Sasaki
The Chemical Record, 6, 43-51 (2006).

(42) Photosolubilization of Polyolefinsulfone Possessing Side Chain Oxime Ester Groups
H. Yaguchi, and T. Sasaki
Chem. Lett. 35, 760-761 (2006).

(41) Photorefractive Effect of Composites of Ferroelectric Liquid Crystal and Photoconductive Polymer
Y. Nakazawa, and T. Sasaki
Liq. Cryst., 33, 159-165 (2006).

(40) Photorefractive Effect of Liquid Crystalline Materials
T. Sasaki,
Polymer Journal, 37, 797-812 (2005).

(39) Photorefractive Effect in Liquid Crystalline Polymers Containing Hydrogen-Bonding Moiety
T. Sasaki, G. Fukunaga
Chem. Mater., 17, 3433-3438 (2005).

(38) Influence of the Laser Incidence Condition on the Spontaneous Polarization Photorefractive Effect of Ferroelectric Liquid Crystals
T. Sasaki, O. Mochizuki, Y. Nakazawa, K. Noborio
J. Phys. Chem. B, 108, 17083-17088 (2004).

(37) Formation of Dynamic Holograms Based on Spatial Modulation of Molecular Motions of Ferroelectric Liquid Crystals
T. Sasaki, O. Mochizuki, Y. Nakazawa, G. Fukunaga, T. Nakamura, K. Noborio
Appl. Phys. Lett., 85, 1329-1331 (2004).

(36) Spontaneous Polarization Vector Reorientation Photorefractive Effect in Ferroelectric Liquid Crystals
T. Sasaki, A. Katsuragi, Y. Nakazawa, G. Fukunaga, S. Yoshimura
Mol. Cryst. Liq. Cryst, 410, 117-127 (2004).

(35) Photorefractivity of Mixtures of a Ferroelectric Liquid Crystal and Photoconductive Polymers
Y. Nakazawa and T. Sasaki
Chem. Lett., 33, 242-243 (2004).

(34) Influence of the Properties of Ferroelectric Liquid Crystals on the Spontaneous Polarization Reorientation Photorefractive Effect
T. Sasaki, A. Katsuragi, O. Mochizuki, Y. Nakazawa
J. Phys. Chem. B, 107, 7659-7665 (2003). (
液晶学会論文賞受賞

(33) Spontaneous Polarization Vector Reorientation Photorefractivity in Mixtures of a Photoconductive Polymer and a Ferroelectric Liquid Crystal
T. Sasaki, K. Ohno, Y. Nakazawa
Macromolecules, 35, 4317-4321 (2002).

(32) Spontaneous Polarization Reorientation Type Photorefractivity in Dye Doped Ferroelectric Liquid Crystals
T. Sasaki, A. Katsuragi, K. Ohno
J. Phys. Chem. B, 106, 2520-2525 (2002)

(31) Photorefractive Properties of the Isotropic Phase of Cyanobiphenyl Side-chain Liquid Crystalline Polymers
T. Sasaki, T. Shimada, K. Tachibana
Chem. Lett., 324-325 (2002)

(30) Photorefractive Effect of Liquid Crystalline Polymers Possessing Azobenzene Chromophores with Chral and Achiral Substituents
T. Sasaki, R. Kai, A. Sato, Y. Ishikawa and T. Yoshimi
Mol. Cryat. Liq. Cryst., 373, 53-70 (2002)

(29) Spontaneous Polarization Reorientation Type Photorefractivity in Ferroelectric Liquid Crystals
T. Sasaki, Y. Kino, M. Shibata, N. Mizusaki, A. Katsuragi, Y. Ishikawa and T. Yoshimi
Appl. Phys. Lett. 78, 4112-4114 (2001).

(28) Enhancement of Photorefractive Effect in the Isotropic Phase of Liquid Crystalline Polymers
T. Sasaki, K. Tachibana, K. Ono, T. Shimada, M. Kudo, A. Katsuragi, T. Furuta
Mol. Cryst. Liq. Cryst. 368, 345-350 (2001)

(27) Enhancement of Photorefractivity in the Isotropic Phase of Polymer Liquid Crystals
T. Sasaki, M. Goto, Y. Ishikawa and T. Yoshimi
J. Phys. Chem. B, 103, 1925-1929 (1999).

(26) Second Harmonic Generation of Side-chain Polymer Liquid Crystals Possessing Asymmetric Carbon Without Poling Treatment
T. Sasaki, Y. Ishikawa, T. Yoshimi, R. Kai, H. Kato and M. Matsuda
Mol. Cryst. Liq. Cryst, 309, 157-165 (1998).

(25) Asymmetric Energy Exchange Observed in Two-Beam Coupling Experiment on Immobilized Films of Bilayer Amphiphiles Possessing Carbazole and Nonlinear Optical Chromophores
T. Sasaki, T. Yoshimi, M. Saga, and Y. Ishikawa
Chem. Lett., 1153-1154 (1997).

(24) Photorefractive Effect of Liquid Crystal Polymer Poly 4-methacryloyloxyhexyloxy(4'-nitro benzylidene)aniline
T. Sasaki, S. Hamada, Y. Ishikawa, and T. Yoshimi
Chem. Lett., 1183-1184 (1997).

(23) Hyperpolarizabilities and Second Harmonic Generation of Side-chain Polymer Liquid Crystals Possessing Alkylsulfon-Substituted Stilbene and Azobenzene Chromophores.
T. Sasaki, Y. Ishikawa, T. Yoshimi, K. Makiguchi and M. Matsuda
Mol. Cryst. Liq. Cryst, 300, 97-111 (1997).

(22) Nitration of N-Confused Porphyrin
Y. Ishikawa, I. Yoshida, K. Akaiwa, E. Kouguchi, T. Sasaki, H. Furuta
Chem. Lett., 453-454 (1997).

(21) Liquid Crystal Photonics: Optical Switching and Image Storage by Means of Nematic Liquid Crystals and Ferroelectric Liquid Crystals
T. Ikeda, O. Tsutsumi and T. Sasaki
Synthetic Metals, 81, 289-296 (1996).

(20) Photochemical Control of Properties of Ferroelectric Liquid Crystals (1) Effect of Structure of Host Ferroelectric Liquid Crystals.
T. Sasaki and T. Ikeda
J. Phys. Chem., 99, 13002-13007 (1995).

(19) Photochemical Control of Properties of Ferroelectric Liquid Crystals (2) Effect of Structure of Guest Photoresponsive Molecules
T. Sasaki and T. Ikeda
J. Phys. Chem., 99, 13008-13012 (1995).

(18) Photochemical Control of Properties of Ferroelectric Liquid Crystals (3) Photochemical Control of Spontaneous Polarization and Electrooptic Effect.
T. Sasaki and T. Ikeda
J. Phys. Chem., 99, 13013-13018 (1995).

(17) Photochemical Control of Properties of Ferroelectric Liquid Crystals: Photochemical Flip of Polarization
T. Sasaki, T. Ikeda, and K. Ichimura
J. Am. Chem. Soc., 116, 625-628 (1994).

(16) Photochemical Switching og Polarization in 3-Ring Ferroelectric Liquid Crystalline Display Materials
T. Sasaki and T. Ikeda
Display&Imaging, 305-308 (1994).

(15) Photochemical Switching of Polarization in Ferroelectric Liquid Crystals: Effect of Structure of Host FLCS
T. Sasaki and T. Ikeda
Ferroelectrics, 149, 343-351 (1993).

(14) Photochemical Switching of Polarization in Ferroelectric Liquid-Crystal Films
T. Ikeda, T. Sasaki, and K. Ichimura
Nature, 361, 428-430 (1993).

(13) Photoisomerization Observed by Means of Scanning Tunneling Microscopy
T. Umemoto, K. Ishikawa, H. Takezoe, A. Fukuda, T. Sasaki, T. Ikeda
Jpn. J. Appl. Phys., 32, L936-L939 (1993).

(12) Photoisomerization and Thermal Isomerization Behavior of Azobenzene Derivatives in Liquid Crystalline Polymer Matrices
T. Sasaki, T. Ikeda, and K. Ichimura
Macromolecules, 26, 151-154 (1993).

(11) Photochemical Control of Switching Behaviors of Ferroelectric Polymer Liquid Crystals: Poly(2-methylbutyl 4'-(10-acryloyloxy-decyloxy)- biphenyl-4-carboxylate)
T. Ikeda, O. Zushi, T. Sasaki, K. Ichimura, H. Takezoe, A. Fukuda, K.A.W. Skarp
Mol. Cryst. Liq. Cryst., 225, 67-79 (1993).

(10) Time-Resolved Observation of Photochemical Phase Transition of Polymer Liquid Crystals
T. Sasaki, T. Ikeda, and K. Ichimura
Macromolecules, 25, 3807-3811 (1992).

(9) Intrinsic Response of Polymer Liquid Crystals in Photochemical Phase Transition
T. Ikeda, T. Sasaki, and H.-B. Kim
J. Phys. Chem., 95, 509-511 (1991).

(8) Photochemical Phase Transition of Polymer Liquid Crystals
T. Ikeda, T. Sasaki, and K. Ichimura
J. Photopolym. Sci Technol., 4, 191-198 (1991).

(7) Time-Resolved Observation of Isothermal Phase Transition of Liquid Crystals Induced by Photoisomerization of Azobenzene Dopant
S. Kurihara, T. Ikeda, T. Sasaki, H.-B. Kim, and S. Tazuke
Mol. Cryst. Liq. Cryst., 195, 251-263 (1991).

(6) Photosensitive Liquid Crystals Prepared from Poly(biphenyl vinyl ether-alt-maleic anhydride)s
T. Ikeda, S. Hasegawa, T. Sasaki, T. Miyamoto, M.-P. Lin, and S. Tazuke
Makromol. Chem., 192, 215-221 (1991).

(5) Photoreactivity and Emission Properties of Liquid Crystalline Twin Dimers Containing Cinnamic Acid Moieties at Both Ends of Ethylene Glycol Spacers. II. Emission Properties
T. Ikeda, Ta. Ikeda, T. Sasaki, B. Lee, S. Kurihara, and S. Tazuke
Liquid Crystals, 9, 469-477 (1991).

(4) Photoreactivity and Emission Properties of Liquid Crystalline Twin Dimers Containing Cinnamic Acid Moieties at Both Ends of Ethylene Glycol Spacers. I. Synthesis, Thermotropic Properties and Photoreactivity
T. Ikeda, Ta. Ikeda, T. Sasaki, B. Lee, S. Kurihara, and S. Tazuke
Liquid Crystals, 9, 457-468 (1991).

(3) Excimer Formation in Main-Chain Polymer Liquid Crystals with Mesogenic p-Phenyleneacrylic Acids
T. Ikeda, C.H. Lee, T. Sasaki, B. Lee, S. Kurihara, and S. Tazuke
Macromolecules, 23, 1691-1695 (1990).

(2) Photochemical Phase Transition Behaviors of Ternary Mixtures of Photochromic Azobenzene Derivative, Low Molecular Weight Liquid Crystal and Polymer Liquid Crystal
T. Ikeda, T. Miyamoto, T. Sasaki, B. Lee, and S. Tazuke
Mol. Cryst. Liq. Cryst., 188, 235-250 (1990).

(1) Time-Resolved Observation of Isothermal Phase Transition of Liquid Crystals Triggered by Photochemical Reaction of Dopant
S. Kurihara, T. Ikeda, T. Sasaki, H.-B. Kim, and S. Tazuke
J. Chem. Soc. Chem. Commun., 1751-1752 (1990).


III. Proceedings (国際会議の査読付きプロシーディング)

(18) Light Amplification in Photorefractive Ferroelectric Liquid Crystal Blends Containing Quarter-Thiophene Photoconductive Dopant
T. Sasaki, S. Morino, K. V. Le
Advances in Optical Science and Engineering, Proceedings of the Third International Conference, OPTRONIX 2016, pp 49-55 (2017)

(17) Dynamic amplification of light signals in photorefractive ferroelectric liquid crystal blends containing photoconductive chiral dopant
T. Sasaki, M. Hafuri, T. Suda, M. Nakano, K. Funada, M. Ohta, T. Terazono, K. V. Le, Y. Naka
SPIE Light Manipulating Organic Materials and Devices IV, 10360, 1036007, 1-6 (2017)

(16) Light amplification by photorefractive ferroelectric liquid crystal blends containing quarter-thiophene photoconductive chiral dopant
T. Sasaki, T. Hara, Y. Yamamoto, Y. Naka and K. V. Le
Proc. SPIE, 10233, H1-7 (2017).

(15) Effect of the photochemical reactivity of the photoconductive chiral dopant on the durability of photorefractive ferroelectric liquid crystal blends
T. Sasaki; K. V. Le
2nd International Conference on Opto-Electronics and Applied Optics (IEM OPTRONIX), 1-6 (2015).

(14) Dynamic Amplification of Light Signals in Photorefractive Ferroelectric Liquid Crystals
T. Sasaki, Y. Naka
Proc. SPIE, 9564, 95640T, 1-10 (2015).

(13) Photorefractive amplification of dynamic light signals using photoconductive ferroelectric liquid crystals
T. Sasaki
Proc. SPIE 9508, Holography: Advances and Modern Trends IV, 95080C 1-8 (2015)

(12) Dynamic Amplification of Light Signals in Photorefractive Ferroelectric Liquid Crystals
Takeo Sasaki, Satoshi Kajikawa and Yumiko Naka
Proceedings of ICOL-2014, OP-OMT-02 (2014).

(11) Photorefractive effect in ferroelectric liquid crystals containing oligo-thiophene chiral compounds
T. Sasaki, M. Ikegami, S. Kajikawa and Y. Naka
proc SPIE, 8828 882805 1-8 (2013).

(10) Real-time formation of dynamic hologram in photorefractive ferroelectric liquid crystals
T. Sasaki, M. Ikegami, S. Kajikawa and Y. Naka
proc SPIE, Vol. 8474 84740S1-S8 (2012).

(9) Photorefractive Effect in ferroelectric Liquid Crystal Mixtures
T. Sasaki
Polymer Photonics and Novel Optical Technologies, 1, 11-16 (2011)

(8) Photorefractive Effect of Polymer-stabilized Ferroelectric Liquid Crystals
T. Sasaki, A. Katsuragi, H. Hazato, and Y. Nakazawa
proc. SPIE, 1732, 11-21 (2009).

(7) Photorefractive Effect of Ferroelectric Liquid Crystals with an Applied Alternating Electric Field
T. Sasaki, N. Moriya, and Y. Iwasaki
proc. SPIE, 6829, 19-26 (2007).

(6) Photorefractive Effect of Ferroelectric Liquid Crystals
T. Sasaki, O. Mochizuki, K. Noborio, T. Abe, Y. Nakazawa
proc. SPIE, 5741, 107-117 (2005).

(5) Effect of the Introduction of Supramolecular Structure on the Photorefractive Properties of Liquid Crystalline Polymers
T. Sasaki, G. Fukunaga
proc. SPIE, 5518, 11-18 (2004).

(4) Spontaneous polarization reorientation photorefractive effect in low-molecular-weight ferroelectric liquid crystal mixtures
T. Sasaki, A. Katsuragi, O. Mochizuki, Y. Nakazawa
proc. SPIE, 5216, 211-219 (2003).

(3) Spontaneous Polarization Reorientation Photorefractive Effect in Ferroelectric Liquid Crystals
T. Sasaki, A. Katsuragi, Y. Nakazawa, G. Fukunaga, S. Yoshimura
proc. SPIE, 4802, 65-75 (2002).

(2) Photorefractive Effect of the Isotropic Phase of Polymer Liquid Crystals
T. Sasaki
proc. SPIE, 3799, 14-21 (1999).

(1) Image Recording in Polymer Liquid Crystals
T. Ikeda, T. Sasaki, and S. Kurihara
Proc. Japan Acad., 69, 7-12, Ser. B, 7 (1993).


IV. Review Articles in Japanese(日本語総説)

(9) 「高分子フォトニクス:フォトリフラクティブ材料」
佐々木健夫
高分子(高分子学会誌), 59, 332-313, (2010)

(8) 「感光性ポリスルホン・ポリオレフィンスルホンの光誘起解重合」
佐々木健夫、松田實
高分子(高分子学会誌), 56, 513, (2007).

(7) 「側鎖型ブロック共重合体のフォトリフラクティブ効果」
佐々木健夫
高分子加工, 54, 460-466 (2005).

(6) 「液晶フォトリフラクティブ材料」
佐々木健夫
日本液晶学会誌, 6, 168-180 (2002).

(5) 「強誘電性液晶における自発分極ベクトル転向型高速応答フォトリフラクティブ効果」
佐々木健夫
マテリアルインテグレーション, 15, 27-29 (2002)

(4) 「液晶性化合物で誘起されるフォトリフラクティブ効果」
佐々木健夫
高分子加工, 49, 214-220 (2000).

(3) 「液晶性高分子のフォトリフラクティブ効果」
佐々木健夫、吉見剛司
高分子加工, 48, 217-221 (1999).

(2) 「光に応答する液晶」
佐々木健夫、池田富樹
新素材, 12, 19-24 (1994).

(1) 「光で駆動する高分子液晶」
佐々木健夫, 池田富樹
新素材, 11, 19-24 (1993).


V. Other Publications(その他執筆記事)

(5)「光でばらばらに分解する高分子」
佐々木健夫
化学と教育, 58, 20-21 (2010).

(4) 「有機フォトリフラクティブ材料」
佐々木健夫
化学と教育, 50, 828-829 (2002).

(3) 「フォトリフラクティブ液晶の研究」
佐々木健夫
理大科学フォーラム, 218, 26-27 (2002).

(2) 「新指導要領導入と理数系教育を思う: ファインマンの父親」
佐々木健夫
理大科学フォーラム, 217, 43 (2002).

(1) 「分子内電子移動を示すニトロベンゼン誘導体の分子分極率」
佐々木健夫、吉見剛司
大分大学工学部研究報告, 34, 69-74 (1996).


VI. Invited Lectures(招待講演)

(29) Photorefractive Effect in Ferroelectric Liquid Crystal Blends Containing Oligo-thiophene Photoconductive Dopant (Keynote talk)
T. Sasaki
International Conference on Advances in Optics and Photonics
(XLI Conference of Optical Society of India)
ICAOP-2017 (Hisar, India) November 23-26, 2017.

(28) Photodetachable Adhesives Composed of Photodepolymerizable Poly(olefin sulfone)s (Keynote talk)
T. Sasaki
BIOSPECTRUM 2017 (Kolkata, India) August 25-26, 2017.

(27) Dynamic amplification of light signals in photorefractive ferroelectric liquid crystal blends containing photoconductive chiral dopant (Invited)
T. Sasaki
SPIE Optics & Photonics 2017, Light Manipulating Organic Materials and Devices IV (San Diego, USA) August 6-11, 2017.

(26) Light amplification by photorefractive ferroelectric liquid crystal blends
containing quarter-thiophene photoconductive chiral dopant (Ivited)
T. Sasaki
SPIE Photonics & Optoelectronics 2017 (Prague, Czech) April 24-27, 2017.

(25) Dynamic Light Amplification in Photorefractive Ferroelectric Liquid Crystal Blends Containing Photoconductive Chiral Dopant (Plenary talk)
T. Sasaki
The 7th IEEE Annual Ubiquitous Computing, Electronics & Mobile Communication Conference (IEEE UEMCON 2016, New York City, USA) October 20-22, 2016.

(24) Photorefractive Effect in Ferroelectric Liquid Crystal Blends Containing Quarter-thiophene Photoconductive Dopant (Plenary talk)
T. Sasaki
The 7th IEEE Annual Information Technology, Electronics and Mobile Communication Conference (IEEE IEMCON 2016, University of British Columbia, Vancouver, Canada) October 13 - 15, 2016

(23) Light Amplification in Photorefractive Ferroelectric Liquid Crystal Blends Containing Quaterthiophene Photoconductive Dopant (Invited)
T. Sasaki
3rd INTERNATIONAL CONFERENCE ON OPTO-ELECTRONICS AND APPLIED OPTICS,2016 (OPTRONIX-2016, University of Engineering and Management, Kolkata, India) August 18-20 (2016)

(22) フォトリフラクティブ強誘電性液晶ブレンドにおける光増幅(依頼講演)
佐々木健夫
2016年 日本液晶学会 液晶ディスプレイ研究フォーラム/液晶フォトニクス・光デバイスフォーラム合同講演会 (東京)2016年3月10日

(21) Photorefractive effect of photoconductive ferroelectric liquid crystal blends (Invited)
Takeo Sasaki
EMN Meeting on Polymer (Hong Kong) January 12-15, 2016

(20) Photorefractive effect in ferroelectric liquid crystals (Invited)
Takeo Sasaki
Annual Meeting of Taiwan Liquid Crystal Society (Taiwan) December 18, 2015.

(19) Effect of Photochemical Reactivity of the Photoconductive Chiral Dopant on the Durability of Photorefractive Ferroelectric Liquid Crystal Blends (Invited)
Takeo Sasaki
IEM Optronics 2015 (Vancouver, Canada) October 16-17, 2015.

(18) フォトリフラクティブ強誘電性液晶による光信号の実時間増幅(依頼講演)
佐々木健夫
映像情報メディア学会情報ディスプレイ研究会(東京)2015年7月30日

(17) Real-time Light amplification by Photorefractive Ferroelectric Liquid Crystal Mixtures (Invited)
Takeo Sasaki
SID Display Week 2015 (San Jose, USA) May 31-June 5, 2015.

(16) Real time amplification of moving light signals by photorefractive ferroelectric liquid crystal mixtures
Takeo Sasaki and Yumiko Naka
IEM OPTRONIX-2015, (Kolkata, India), December 17-18, 2014 Keynote talk

(20) Dynamic Amplification of Light Signals in Photorefractive Ferroelectric Liquid Crystalline Mixtures
Takeo Sasaki, Satoshi Kajikawa and Yumiko Naka
Faraday Discussions 174 Organics, Photonics & Electronics, (Glasgow, UK), September 8-10, 2014

(19) Dynamic Amplification of Optical Signals in Photorefractive Ferroelectric Liquid Crystals
Takeo Sasaki and Yumiko Naka
7th Italian-Japanese Workshop on Liquid Crystals (Ravenna, Italy), July 6-9, 2014

(18) Dynamic Amplification of Light Signals in Photorefractive Ferroelectric Liquid Crystals
T. Sasaki, S. Kajikawa and Y. Naka
International Conference of Optics and Optoelectronics ICOL-2014, (Dehradun, India), March 5-8, 2014

(17) Photorefractive effect in ferroelectric liquid crystals containing oligo-thiophene chiral compounds
Takeo Sasaki, Masashi Ikegami, Takashi Sato, Satoshi Kajikawa and Yumiko Naka
SPIE Optics+Photonics (San Diego), August 25-29, 2013

(16) Real-time Dynamic Hologram Formation in Photorefractive Ferroelectric Liquid Crystals
T. Sasaki
International Conference on Emerging Advanced Nanomaterials (ICEAN 2012, Brisbane, Australia).
October 22-25, 2012

(15) Formation of Hologram in Photorefractive Ferroelectric Liquid Crystals
T. Sasaki,
International Conference of Photopolymer Sciecne and Technology (ICPST, Chiba University), June 26, 2012

(14) Photorefractive effect of ferroelectric liquid crystal mixtures
T. Sasaki and Y. Naka
THE 15TH INTERNATIONAL SYMPOSIUM ON ADVANCESD DISPLAY MATERIALS & DEVICES (Kumamoto, Japan)
June 30, 2011

(13) 光解重合性ポリオレフィンスルホン
佐々木健夫
ラドテック講演会、2010年11月27日(学士会館)

(12) Photorefractive Effect in Ferroelectric Liquid Crystal Mixtures
T. Sasaki
11th Chitose International Fourum on Photonics Science and Technology (CIF’11, Chitose, Japan)
October 14-15, 2010

(11) フォトリフラクティブ液晶材料
佐々木健夫
高分子学会フォトニクスポリマー研究会、2010年  6月  17日(慶応大学日吉キャンパス)

(10) Photorefractive Effect of Polymer Stabilized Ferroelectric Liquid Crystals
T. Sasaki
International Conference on Optics and Photonics(IOCP-2009) (Chandighar, India)
October30-November2, 2009

(9) 光解重合性ポリオレフィンスルホン
佐々木健夫
フォトポリマー懇話会、2009年6月9日(森戸記念館)

(8) Photorefractive Effect of Polymer Stabilized Ferroelectric Liquid Crystals
T. Sasaki
"Emerging Liquid Crystal Technologies IV Symposium," part of the Photonics West 2009 (SanJose)
January 24-29, 2009

(7) Photorefractive Effect of Ferroelectric Liquid Crystals with Application of Alternating Electric field
T. Sasaki
Photonics Asia 2007 (Beijing)
November 11-15, 2007

(6) Photorefractive Effect of Ferroelectric Liquid Crystals
T. Sasaki
"Emerging Liquid Crystal Technologies (OE21) Symposium," part of the Photonics West 2005 (SanJose)
January 27, 2005

(5) Effect of the Introduction of Supramolecular Structure on the Photorefractive
Properties of Liquid Crystalline Polymers
T. Sasaki
SPIE Annual Meeting 2004 (Denver)
August 2, 2004

(4) Spontaneous Polarization Reorientation Photorefractive Effect in FLCs
T. Sasaki
SPIE Annual Meeting 2002 (Seattle)
July 7, 2002

(3) Enhancement of Photorefractive Effect in the Isotropic Phase of Liquid Crystalline Polymers
T. Sasaki
ILCC2000 Satellite symposium (Tokyo)
July 29, 2000

(2) 「高分子液晶のフォトリフラクティブ効果」
佐々木健夫
'98理研シンポジウム「機能性材料のためのブレークスルー研究」
December 30, 1998

(1) Enhancement of Photorefractivity in the Isotropic Phase of Polymer Liquid Crystals.
T. Sasaki
'98 Japan-Korea International Conference on Liquid Crystalline Materials and Devices (Tokyo)
October 30, 1998


VII. International Conferences(国際会議)

(32) Real-time Optical Signal Amplification by Photorefractive Ferroelectric Liquid Crystal Blends
Takeo Sasaki
World Congress and Expo on Materials Science & Polymer Engineering (Dubai, UAE) November 26-28, 2015.

(31) Photorefractive amplification of moving light signals by
photoconductive ferroelectric liquid crystal blends, Takeo Sasaki, Masanori Yoshino,
SPIE Optics+Photonics 2015 (San Diego, USA) August 9-13, 2015.

(30) Real-time photorefractive amplification of optical signals by photoconductive liquid crystal blends
Takeo Sasaki
Photorefractive Photonics PR15 (Villars Sur Ollon, Switzerland) June 16-19, 2015.

(29) Photorefractive Amplification of Dynamic Light Signals Using Photoconductive Ferroelectric Liquid Crystals
Takeo Sasaki
SPIE Optics+Optoelectronics 2015 (Prague, Czech Republic) April 13-16, 2015.

(28) Real time amplification of moving light signals by photorefractive ferroelectric liquid crystal mixtures
Takeo Sasaki and Yumiko Naka
IEM OPTRONIX-2015, (Kolkata, India), December 17-18, 2014

(27) Dynamic Amplification of Light Signals in Photorefractive Ferroelectric Liquid Crystalline Mixtures
Takeo Sasaki, Satoshi Kajikawa and Yumiko Naka
Faraday Discussions 174 Organics, Photonics & Electronics, (Glasgow, UK), September 8-10, 2014

(26) Dynamic Amplification of Optical Signals in Photorefractive Ferroelectric Liquid Crystals
Takeo Sasaki and Yumiko Naka
7th Italian-Japanese Workshop on Liquid Crystals (Ravenna, Italy), July 6-9, 2014

(25) Dynamic Amplification of Light Signals in Photorefractive Ferroelectric Liquid Crystals
Takeo Sasaki, Yumiko Naka
SPIE Optics+Photonics (San Diego), August 17-21, 2014

(24) Dynamic Amplification of Light Signals in Photorefractive Ferroelectric Liquid Crystals
T. Sasaki, S. Kajikawa and Y. Naka
International Conference of Optics and Optoelectronics ICOL-2014, (Dehradun, India), March 5-8, 2014

(23) Real-time formation of dynamic hologram in photorefractive ferroelectric liquid crystals
T. Sasaki, M. Ikegami, S. Kajikawa and Y. Naka
SPIE Optics+Photonics (San Diego), August 25-29, 2013

(22) Real-time Dynamic Hologram Formation in Photorefractive Ferroelectric Liquid Crystals
T. Sasaki
International Conference on Emerging Advanced Nanomaterials (ICEAN 2012, Brisbane, Australia).
October 22-25, 2012

(21) Formation of Hologram in Photorefractive Ferroelectric Liquid Crystals
T. Sasaki,
International Conference of Photopolymer Sciecne and Technology (ICPST, Chiba University), June 26, 2012

(20) Photorefractive effect of ferroelectric liquid crystal mixtures
T. Sasaki and Y. Naka
THE 15TH INTERNATIONAL SYMPOSIUM ON ADVANCESD DISPLAY MATERIALS & DEVICES (Kumamoto, Japan)
June 30, 2011

(19)Photorefractive Effect in Ferroelectric Liquid Crystal Mixtures
T. Sasaki, M. Ikegami and Y. Naka
1st International Conference on Advanced Photonic Polymers 2011
December 1-2, 2011 (Yokohama)

(18) Photorefractive Effect in Ferroelectric Liquid Crystal Mixtures
T. Sasaki
11th Chitose International Fourum on Photonics Science and Technology (CIF’11, Chitose, Japan)
October 14-15, 2010

(17)Photorefractive effect of ferroelectric liquid crystals
T. Sasaki
Pacifichem Area 9 Materials and Nanotechnology #142*Fundamentals and Applications of Nanomaterials for Electronics and Photonics
December 16, 2010 (Honolulu, Hawaii)

(16)Photorefractive Effect of Ferroelectric Liquid Crystals
T. Sasaki
ICOL-2005 International Conference on Optics & Optoelectronics
(XXXI Symposium of Optical Society of India)
December 12-15, 2005 (Dehradun, Uttaranchal (INDIA))

(15) Spontaneous Polarization Reorientation Photorefractive Effect in
Low-Molecular-Weight FLC Mixtures
T. Sasaki
SPIE Annual Meeting 2003 (San Diego)
August 8, 2003

(14) Spontaneous Polarization Reorientation Photorefractive Effect in FLCs
T. Sasaki
SPIE Annual Meeting 2002 (Seattle)
July 7, 2002

(13) Spontaneous Polarization Vector Reorientation Photorefractive Effect in Ferroelectric Liquid Crystals
T. Sasaki
ILCC2002 (Edinburgh)
July 4, 2002

(12) Enhancement of Photorefractivity in the Isotropic Phase of Liquid Crystalline Polymers
T. Sasaki
ILCC2000 (Sendai)
July 26, 2000

(11) Photorefractive Effect of the Isotropic Phase of Polymer Liquid Crystals
T. Sasaki and Y. Ishikawa
SPIE 44th annual meeting (Denver)
July 18, 1999

(10) The Photorefractive Effect of Ferroelectric Liquid Crystals
T. Sasaki and Yuji Kino
The Nagoya COE Conference on Functionality and Characterization of Molecular Systems
January 7, 1999

(9) Enhancement of Photorefractivity in the Isotropic Phase of Polymer Liquid Crystals.
T. Sasaki
The Nagoya COE Conference on Functionality and Characterization of Molecular Systems
January 7, 1999

(8) Enhancement of Photorefractivity in the Isotropic Phase of Polymer Liquid Crystals.
T. Sasaki
'98 Japan-Korea International Conference on Liquid Crystalline Materials and Devices (Tokyo)
October 30, 1998

(7) Nonlinear Optical Effect in Ordered Molecular Systems (1) Photorefractive Effect of A Series of Molecular Assembly of Fluorocarbon Polyphiphiles
T. Sasaki, T. Yoshimi, Y. Mihata, and Y. Ishikawa
'97 Kyushu-Seibu/Pusan-Kyeongnam Joint Symposium on High Polymers and Fibers. (Kumamoto)
November 11, 1997

(6) Nonlinear Optical Effect in Ordered Molecular Systems (2) Photorefractive Effect of A Series of Polymer Liquid Crystals
T. Sasaki, R. Kai, T. Yoshimi, and Y. Ishikawa
'97 Kyushu-Seibu/Pusan-Kyeongnam Joint Symposium on High Polymers and Fibers. (Kumamoto)
November 11, 1997

(5) Nonlinear Optical Effect in Ordered Molecular Systems (3) Second Harmonic Generation in Polymer Liquid Crystals
T. Sasaki, T. Yoshimi, and Y. Ishikawa
'97 Kyushu-Seibu/Pusan-Kyeongnam Joint Symposium on High Polymers and Fibers. (Kumamoto)
November 11, 1997

(4) Phototunable Second Order Nonlinear Optical Effect in Nitroaniline Derivatives
T. Sasaki, Y. Takahashi, and M. Matsuda
Pacifichem '95 (Hawaii)
December 19, 1995

(3) Second Order Nonlinear Optical Properties of Side-chain Polymer Liquid Crystals with Sulfonated Azobenzene and Stilbene Chromophores
T. Sasaki, K. Makiguchi, and M. Matsuda
Pacifichem '95 (Hawaii)
December 19, 1995

(2) Photochemical Switching of Polarization in Ferroelectric Liquid Crystals: Effect of Structure of Host FLCs
T. Sasaki and T. Ikeda
Fourth International Conference on Ferroelectric Liquid Crystals (Tokyo)
September 29, 1993

(1) Time-Resolved Observation of Photochemical Phase Transition of Polymer Liquid Crystals
T. Sasaki, T. Ikeda, and K. Ichimura
Ibaragi (Tsukuba) International Symposium on Recent Trends in Organic Photochemistry and Its Extensive Prospect to Industry
May 11, 1991


VIII. Domestic Conferences(国内の学会での発表


IX. Patents(特許)

(1)特許公開平8-15661「光スイッチング方法」
(2)特許公開平6-289399「光学素子およびその動作方法」
(3)特許公開平5-51584「強誘電性液晶組成物およびそれを用いた液晶光学素子」