FOCUSING OF TWO-DIMENSIONAL WAVES

被引：67

作者：

STAMNES, JJ

机构：

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA | 1981年 / 71卷 / 01期

关键词：

D O I：

10.1364/JOSA.71.000015

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Two different methods are described for efficient computation of two-dimensional wave fields in focal regions. Both methods are valid for arbitrarily large relative apertures. One method is based on the impulse-response integral and the other on the angular-spectrum representation. The latter method is used to analyze the discrepancy between applying the Kirchhoff or the Debye assumption to obtain an approximation for the field in the aperture. Two cases of idealized incident waves are analyzed in detail.

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页码：15 / 31

页数：17

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