応用物理
Online ISSN : 2188-2290
Print ISSN : 0369-8009
ISSN-L : 0369-8009
再回折光学系を用いた物体の位相分布の測定
(III) 種々の応用
篠田 軍治鈴木 達朗三野 正幸永田 良中尾 主一
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1966 年 35 巻 3 号 p. 197-202

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A new method of determining the optical phase distribution in materials based on the double diffraction was reported in previous papers. In this part, several experimental results obtained by this method are described.
1) Instantaneous temperature-gradient distribution in a solid can be shown by color distribu-tion, whereby we can observe the phenomena of heat conduction in material and detect hetero-geneous parts in it by watching the variation of equi-gradient curves of temperature.
2) In the process of fracture of material, the deformation of strained specimen can be shown directly by the color distribution, whereby we can observe the transient phenomena from elastic to plastic deformation, the movement of the region of stress concentration, the relaxation of stress and so on.
3) The two dimensional distribution of refractive index in crystalline lens of rabbit eye is determined.
4) The roughness or waviness of metalsurface can be observed by the color distribution.
A new optical system witha white light source and a multiple slit is devised to obtain clearer colored image and to make the analysis easy.

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