スペックル相関法による波面の曲率半径の測定
1981 年 10 巻 6 号 p. 460-464
詳細
1981 年 10 巻 6 号 p. 460-464
A new method of measuring the radii of wavefront curvature of laser beams is presented and verified by experiments. Its principle is that the sensitivity of speckle displacement for in-plane translation of diffuse objects depends on the curvature of the incident wavefront. The speckle displacement is measured by an electronic speckle correlation technique using a linear image sensor and a microcomputer.
