PHOTOTHERMAL-WAVE DIFFRACTION AND INTERFERENCE IN CONDENSED MEDIA - EXPERIMENTAL-EVIDENCE IN ALUMINUM

被引：26

作者：

MANDELIS, A

LEUNG, KF

机构：

[1] Photoacoustic and Photothermal Sciences Laboratory, Ontario Laser and Lightwave Research Center, Toronto, ON

[2] Department of Mechanical Engineering, University of Toronto, Toronto, ON

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 1991年 / 8卷 / 01期

关键词：

D O I：

10.1364/JOSAA.8.000186

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Thermal-wave fields have been optically generated and measured, using spatially resolved scanning photopyroelectric detection. Both single laser-beam diffraction profiles and thermal-wave patterns from two laser beams, interfering coherently in a manner analogous to Young's optical-wave experiment, have been produced. The diffraction and interference images have further been showed to be in excellent qualitative agreement with a Laplace thermal-wave propagation formalism, which treats thermal-wave diffraction in the small-aperture approximation. A mechanism for quantitative agreement was obtained after the finite size of the probing metal detector tip was taken into account in mapping thermal-wave fields.

引用

页码：186 / 200

页数：15

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