Reflecting intensity distribution on the angle-tuned filter in oblique incidence

被引：1

作者：

Yu K. ^{[1
]}

Huang D. ^{[2
]}

Zhou K. ^{[1
]}

Yin J. ^{[1
]}

Bao J. ^{[1
]}

Chang J. ^{[3
]}

机构：

[1] Wenhua College, Huazhong University of Science and Technology, Wuhan

[2] Wuhan National Laboratory for Optoelectronics, Wuhan

[3] Wuhan Accelink Technologies Co., Ltd., Wuhan

来源：

Zhongguo Jiguang/Chinese Journal of Lasers | 2010年 / 37卷 / 11期

关键词：

Gaussian beam; Geometrical optics; Narrowband filter; Oblique incidence; Reflecting intensity distribution;

D O I：

10.3788/CJL20103711.2855

中图分类号：

学科分类号：

摘要：

Based on the multi-beam interference principle and Gaussian beam transmission equation in the free space, the intensity expression of a Gaussian beam incidenting obliquely on an angle-tuned narrowband filter has been derived. According to the result, the influence and relationship of the incident angle on the reflection of a Gaussian beam have been investigated theoretically. The calculation and experiment results show that the size of the transmitting beam spot will be brodened obviously when the incident angle is increasing. However, the size of reflecting beam spot will be a little brodened for a relatively large incident angle, which extent is much less than that of the transmitting beam. The reflecting port of the angle-tuned narrowband filter does not need facular-shaping fitting as the transmitting port within its tuanble range.

引用

页码：2855 / 2859

页数：4

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