マエダ　トシテル   Toshiteru Maeda   前田　敏輝    所属   石巻専修大学  理工学部    職種   教授
言語種別	英語
発行・発表の年月	2012/06
形態種別	研究論文（学術雑誌）
査読	査読あり
標題	Spectroscopic characterization of dragonfly wings common in Japan
執筆形態	共著
掲載誌名	Vibrational Spectroscopy
巻・号・頁	61,pp.85-93
総ページ数	9
概要	A series of Fourier Transform infrared (FT-IR) absorption, X-ray diffraction (XRD), and Brillouin light scattering (BLS) studies on the wings of six species of dragonfly common in Japan, including the largest Anotogaster sieboldii and much smaller Lestes temporalis, was performed at room temperature. XRD and FT-IR results indicate that dragonfly wing is comprised of a randomly oriented microcrystalline or an amorphous-like α-chitin. We observed a pair of longitudinal acoustic (LA) phonon peaks and a broad quasi-elastic scattering peak in backscattering BLS spectra. LA phonon frequencies and full widths at half maximum were found to be 19.5 ± 0.4 GHz and 1.0 ± 0.2 GHz for the 488 nm excitation and independent of their sizes and species.
DOI	10.1016/j.vibspec.2012.03.010