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NAOSITE : Nagasaki University's Academic Output SITE > Faculty of Engineering > Bulletin > Reports of the Faculty of Engineering, Nagasaki University > Volume 14, No. 23 >


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Title: 開口によるビーム波回折界の広がり角の測定
Other Titles: Measurement of Divergence Angle of Diffracted Gaussian Beam
Authors: 溝上, 広 / 高田, 謙次 / 佐賀, 信裕 / 田中, 和雅
Authors (alternative): Mizokami, Hiromu / Takada, Kenji / Saga, Nobuhiro / Tanaka, Kazumasa
Issue Date: Jul-1984
Publisher: 長崎大学工学部 / Faculty of Engineering, Nagasaki University
Citation: 長崎大学工学部研究報告, 14(23), pp.141-144; 1984
Abstract: The angular divergence is one of the important characteristics of a diffraction field. For a Gaussian beam incidence, the effect of an aperture on the beam will be neglected if its radius is large enough compared with the spread of the field which is called the spot size of the beam. When the ratio of the aperture radius to the spot size is larger than 1. 6, the incident beam passes through the aperture with the loss of about 1 %. Even in this case, the divergence angle of the diffraction field is rather different form that of the incident beam. In this paper, the divergence angle is measured for various incident conditions. The results coincide with those obtained theoretically within the experimental errors.
URI: http://hdl.handle.net/10069/24142
ISSN: 02860902
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 14, No. 23

Citable URI : http://hdl.handle.net/10069/24142

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