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Journals and Conferences
An optical triplexer with cascaded multi-mode interference (MMI) couplers is proposed in an optical access system. The optical triplexer is constructed on a silicon-on-insulator (SOI) substrate. The optical triplexer was designed by use of beam propagation method.
This paper presents a new compact and rapid wall-climber. First the compact structure of the robot is introduced, which has a pair of driving wheels and a tilt-variable thruster with a set of coaxial propellers. Next the whole dual-control system is constructed, which is composed of both the remote and autonomous control. Then basic experiments are shown… (More)
A diazo-bridged BODIPY dimer and tetramer were prepared by the oxidative coupling reaction of β-amino-substituted BODIPYs. The structure of the dimer was elucidated by X-ray diffraction analysis, showing its coplanar orientation of two BODIPY units. Effective extension of π-conjugation was confirmed by optical and electrochemical investigations.
Oxidation of 2-amino-substituted BODIPYs afforded BODIPY trimers in a one-step operation. The trimer consists of a pyrazine-fused BODIPY dimer to which one BODIPY unit is connected through an NH linkage. Effective expansion of π-conjugation over the fused dimer was observed in optical and electrochemical measurements.
An optical triplexer with cascaded directional couplers is proposed in an optical access system. The optical triplexer includes waveguide crossings with a slot waveguide for polarization independence. The waveguide crossings were designed by use of beam propagation method.
Curved π-conjugated molecules have attracted considerable interest because of the unique properties originating from their curved π surface. However, the synthesis of such distorted molecules requires harsh conditions, which hamper easy access to heteroatom-containing curved π systems. Here we report the synthesis of a π-extended azacorannulene with… (More)