| 高斯光束对三维共焦扫描成像的影响 |
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| 引用本文： | 张耀举,肖化层.高斯光束对三维共焦扫描成像的影响[J].河南师范大学学报(自然科学版),2003,31(4):43-46. |
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| 作者姓名： | 张耀举 肖化层 |
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| 作者单位： | 温州师范学院,物理与电子信息系,浙江,温州,325027 |
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| 摘 要： | 应用传递函数方法研究了高斯光束对三维共焦扫描成像的影响．计算与分析表明，光束的束腰半径越小，三维成像时横向和轴向的截尾空间频率都减小。成像品质下降，分辨率降低．当束腰半径2倍于光瞳半径以上时，成像质量几乎不受高斯光束的影响．焦平面上的二维传递函数的分析和计算也有相类似的结果。
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| 关 键 词： | 高斯光束 三维共焦扫描成像 光学传递函数 共焦显微术 光学成像系统 共焦扫描显微镜 光瞳滤波器 |
| 文章编号： | 1000-2367(2003)04-0043-04 |
| 修稿时间： | 2003年2月17日 |
The effects of a Gaussian beam to 3-D confocal scanning imaging |
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| ZHANG Yao-ju,XIAO Hua-ceng.The effects of a Gaussian beam to 3-D confocal scanning imaging[J].Journal of Henan Normal University(Natural Science),2003,31(4):43-46. |
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| Authors: | ZHANG Yao-ju XIAO Hua-ceng |
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| Abstract: | The effects of a Gaussian beam to 3-D confocal scanning imaging is studied by using the method of transfer function. Calculating and analyzing shows that the smaller the radius of the Gaussian beam, the smaller the cut-off spatial frequency in both transverse and longitudinal directions, the lower the imaging quality. When the radius of the beam waist is twice bigger than that of the pupil, the image quality is almost invariant. The results of the 2-D OTF is similar to the ones of the 3-D OTF . |
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| Keywords: | Gaussian beam optical transfer function confocal imaging |
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