| Author Name | Affiliation | E-mail | | Hao Luyuan | Laboratory for Bond-selective Chemistry, Chinese Academy of Science,Department of Chemical Physics, University of Science and Technology of China, Hefei 230026 | hly@ustc.edu.cn | | Wu Guorong | Laboratory for Bond-selective Chemistry, Chinese Academy of Science,Department of Chemical Physics, University of Science and Technology of China, Hefei 230026 | | | Shi Qiang | Laboratory for Bond-selective Chemistry, Chinese Academy of Science,Department of Chemical Physics, University of Science and Technology of China, Hefei 230026 | | | Li Qi | Laboratory for Bond-selective Chemistry, Chinese Academy of Science,Department of Chemical Physics, University of Science and Technology of China, Hefei 230026 | | | Lin Hai | Laboratory for Bond-selective Chemistry, Chinese Academy of Science,Department of Chemical Physics, University of Science and Technology of China, Hefei 230026 | | | Zhu Qingshi | Laboratory for Bond-selective Chemistry, Chinese Academy of Science,Department of Chemical Physics, University of Science and Technology of China, Hefei 230026 | |
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| Abstract: |
| A multiple-pass geometry for simple structure and easy adjustment is designed ,which consists of only a concave mirror and a plane mirror. The stability condition of this optical system is worked out. A design procedure for maximum number of reflection is described that includes a consideration of input ray diameter and divergence angle. A 56-pass cell is constructed for Ti: sapphire ring laser photoacoustic spectrometer. The calculated spot pattern is in good agreement with the experimental observation. This technique is useful for photoacoustic spectroscopy and long path absorption. |
| Key words: Multipass, Stability condition, Photoacoustic effect |
| FundProject:国家自然科学基金资助项目(29703007) |
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| 改进的Herriott型光学长程池 |
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郝绿原*,吴国荣,史强,李琦,林海,朱清时
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| 摘要: |
| 用凹面反射镜和平面反射镜组成结构简单、光路易调的光多次反射装置，计算了这种光学系统的稳定性条件。考虑实际入射光束的直径和发散角，给出了最大反射次数的求法。制成适用于钛宝石激光光声光谱仪的光56次通过的长程池。理论计算的反射光斑分布与实验观测一致。这个技术有利于提高光声光谱和吸收光谱的探测灵敏度。 |
| 关键词: 光学长程 稳定性条件 光声光谱 |
| DOI：10.1088/1674-0068/14/2/147-153 |
| 分类号: |