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Trigonal Silver Nanostructure for Single Molecule Detection with Surface Enhanced Raman Scattering
Y. Yamaguchi,M. Futamata,M. Ishikawa,Y. Maruyama 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.47 No.1
Silver nanostructure was fabricated by means of nanosphere lithography developed by Van Duyne et al. The nanostructure is composed of a two-dimensional (2-D) array of trigonal prisms that could form an enormous electric field at their sharp edges under localized surface plasmon resonances to provide single molecule sensitivity. In fact, it yielded the blinking of a SERS signal from adsorbed rhodamine 6G, which is an abrupt and repeated intensity fluctuation with time and has been attributed to a single molecule phenomenon. The blinking occurred on the trigonal metal nanostructure approximately 20 times as efficiently as on continuous silver films prepared with the same evaporation condition as for the trigonal structure. Accordingly, the trigonal silver nanostructure is quite promising to give single molecule sensitivity in SERS.
Wideband InterNetworking Engineering Test and Demonstration Satellite (WINDS) system
Kuramasu, Ryoichi,Araki, Tsunehiko,Shimada, Masaaki,Satoh, Tesuo,Tomita, Eiichi,Futamata, Ryosuke,Kuroda, Tomonori,Yajima, Masanobu,Maeda, Tsuyoshi,Uchida, Hideki,Mukai, Tatsuya,Kadowaki, Naoto,Nakao, 통신위성우주산업연구회 2002 Joint Conference on Satellite Communications Vol.2002 No.-
In April 2001 NASDA launched a new project called "WINDS", Wideband InterNetworking engineering test and Demonstration Satellite, to realize the requirement of Japanese Cabinet IT strategy called "e-Japan Priority Policy Program". The WINDS project is aimed at demonstrating technologies necessary to construct the satellite-based ultra high=speed global fixed wireless communications networks. Based on this objective, NASDA works with CRL to develop the WINDS experiment system to be launched in FY 2005. The WINDS experiment system is planned to demonstrate various experiments, using newly key technology such as multi-beam antenna/multi-port amplifier, Ka band active phased array antenna, on-board ATM switch and so on. This paper describes the concept and outline of the WINDS network experiment system.