Journal of the Spectroscopical Society of Japan
Online ISSN : 1884-6785
Print ISSN : 0038-7002
ISSN-L : 0038-7002
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Volume 54, Issue 4
Displaying 1-9 of 9 articles from this issue
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  • Nano-plasmonics
    Takayuki OKAMOTO
    2005 Volume 54 Issue 4 Pages 225-237
    Published: August 15, 2005
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.54.225
    JOURNAL FREE ACCESS
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    Several topics on nano-plasmonics are reviewed including hot site engineering, plasmonic crystals, plasmonic waveguides, plasmonic lithography, a perfect lens with a metal slab, and plasmonics in long-wavelength region.
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  • Applications of a Bayesian Based Maximum Entropy Method to Energy Dispersive X-ray Spectra
    Takao SHINKAWA, Natuko NAKAMURA, Hiroshi KATO, Kazuyoshi SHIBUYA, Mune ...
    2005 Volume 54 Issue 4 Pages 238-244
    Published: August 15, 2005
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.54.238
    JOURNAL FREE ACCESS
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    An energy dispersive X-ray detector is widely used to measure intensity spectra of characteristic X-rays of component elements in an specimen. In a long-time measurement to obtain a low-noise spectrum, the spatial resolution of X-rays decreases partly due to the radiation of X-rays from the surrounding area larger than the probe size itself, and partly due to the drift of the electron beam and/or of the specimen stage. In a short-time measurement to avoid the above difficulties, the X-ray spectrum contains a much higher-level noise. It has been well known that usual smoothing techniques downgrade the sharpness of the spectrum. In the present study, a Bayesian Based Maximum Entropy Method (BBMEM) is applied to the spectrum obtained in a few seconds, and is proved to be an effective technique to reduce the noise in the spectrum.
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  • Structural Analysis of Proteins by Pulsed Electron Electron Double Resonance
    Hideyuki HARA, Toshiaki ARATA, Shouji UEKI, Motoyoshi NAKAMURA
    2005 Volume 54 Issue 4 Pages 245-250
    Published: August 15, 2005
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.54.245
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    Pulsed ELDOR (Electron Electron Double Resonance) method can detect the dipole interaction directly and determine the distance between radicals. We have used SDSL (Site Directed Spin Labeling) and pulsed ELDOR methods in an attempt to study the structural analysis of the proteins. In this report, we applied for human cardiac TroponinC. We labeled two native cysteine residues (35 Cys and 84 Cys) with MTSSL (methane thiosulfonate spin label) and the distance between these labels was estimated to be 26.0 Å. Furthermore the distance distribution was estimated to be 2.1 Å. Then we prepared a mutant (C35S/G42C). The distance (42 Cys-84 Cys) and distance distribution were estimated to be 19.2 Å and 2.5 Å.
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese]
    2005 Volume 54 Issue 4 Pages 251-252
    Published: August 15, 2005
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.54.251
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    2005 Volume 54 Issue 4 Pages 253-255
    Published: August 15, 2005
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.54.253
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    2005 Volume 54 Issue 4 Pages 256-257
    Published: August 15, 2005
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.54.256
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  • [title in Japanese]
    [in Japanese]
    2005 Volume 54 Issue 4 Pages 258
    Published: August 15, 2005
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.54.258
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    2005 Volume 54 Issue 4 Pages 259-260
    Published: August 15, 2005
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.54.259
    JOURNAL FREE ACCESS
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  • Terahertz · Far-Infrared Spectroscopy IV. Spectroscopy by Synchrotron Radiation
    Takao NANBA
    2005 Volume 54 Issue 4 Pages 263-273
    Published: August 15, 2005
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.54.263
    JOURNAL FREE ACCESS
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    Successive to the general application of terahertz and far-infrared spectroscopy to various kinds of subjects, properties of synchrotron radiation and the practical application of spectroscopy by synchrotron radiation in these regions are reviewed. Synchrotron radiation in these regions consists of incoherent and coherent components. In this article, the typical experimental subjects of which performance became feasible only by the application of incoherent synchrotron radiation are introduced. They are the change in phonon spectrum due to pressure-induced structural phase transition, far-infrared absorption-reflection spectroscopy, magnetic circular dichroism measurement, and microspectroscopy under high pressure. Finally, the perspective of spectroscopy in these regions based on the rapid development of the technology of the coherent synchrotron radiation is described.
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