T
Takafumi Sassa
Researcher at University of Washington
Publications - 56
Citations - 975
Takafumi Sassa is an academic researcher from University of Washington. The author has contributed to research in topics: Photorefractive effect & Grating. The author has an hindex of 13, co-authored 53 publications receiving 938 citations.
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Journal ArticleDOI
Highly Efficient and Thermally Stable Nonlinear Optical Dendrimer for Electrooptics
TL;DR: The synthesis and characterization of a cross-linkable NLO dendrimer 3 exhibiting very large optical nonlinearity and excellent thermal stability are reported and several other advantages derived from this approach, such as excellent alignment stability and mechanical properties, which are obtained through the sequential hardening/cross-linking reactions during the high-temperature electric-field poling process.
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Highly Efficient and Thermally Stable Electro‐Optical Dendrimers for Photonics
Hong Ma,Shili Liu,Jingdong Luo,S. Suresh,Lu Liu,Seok Ho Kang,Marnie Haller,Takafumi Sassa,Larry R. Dalton,Alex K.-Y. Jen +9 more
TL;DR: In this paper, a review of electro-optical (EO) dendrimers is presented, and a double-end functionalization of a three-dimensional phenyl-tetracyanobutadienyl (Ph-TCBD)-containing nonlinear optical (NLO) chromophore with thermally crosslinkable trifluorovinylether-containing dendrons is presented.
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Metal-organic thin-film transistor (MOTFT) based on a bis(o-diiminobenzosemiquinonate) nickel(II) complex.
Shin Ichiro Noro,Ho-Chol Chang,Taishi Takenobu,Yuji Murayama,Takayoshi Kanbara,Tetsuya Aoyama,Takafumi Sassa,Tatsuo Wada,Daisuke Tanaka,Susumu Kitagawa,Yoshihiro Iwasa,Tomoyuki Akutagawa,Takayoshi Nakamura +12 more
TL;DR: The semiconducting film based on bis(o-diiminobenzosemiquinonate) nickel(II) complex showed uniaxial orientation structure along the normal to the substrate and good p-type metal-organic thin-film transistor (MOTFT) character.
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Thermally-induced phase transition of pseudorotaxane crystals: changes in conformation and interaction of the molecules and optical properties of the crystals.
Masaki Horie,Yuji Suzaki,Daisuke Hashizume,Tomoko Abe,Tiendi Wu,Takafumi Sassa,Takuya Hosokai,Kohtaro Osakada +7 more
TL;DR: A pseudorotaxane that acts as a thermally driven molecular switch in the single-crystal state is presented, which is regarded as a demonstration of a new type of optical crystal.
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Thermally stable triaryl amino chromophores with high molecular hyperpolarizabilities
Bryan K. Spraul,S. Suresh,Takafumi Sassa,M. Ángeles Herranz,Luis Echegoyen,Tatsuo Wada,Dvora Perahia,Dennis W. Smith +7 more
TL;DR: In this paper, the synthesis of a series of high temperature triaryl amino chromophores with unprecedented hyperpolarizability values for potential EO applications is described, which are bridged to powerful acceptors such as tricyanovinyldihydrofuran via vinyl thiophene linkages.