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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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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

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.

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.

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

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.