IOE OpenIR  > 光电技术研究所博硕士论文
Thesis Advisor黎俊杰
Degree Grantor中国科学院光电技术研究所
Place of Conferral中国科学院光电技术研究所
Keyword声光可调滤光器 声增强型 换能器带宽 声增透膜系
Other AbstractIn this paper, the design principle and method of the acoustically enhanced Acousto-Optic Tunable Filter (AOTF) are discussed in detail. Also, it especially analyses the factors of affecting the bandwidth of AOTF. The selection of the anti-reflection coating designs is realized by computer. Curves TL~F of transducer at relative frequency from 0.1 to 2.0 fro three different film constructions (Sn, Ag-In, Ag-In-Sn) are calculated systematically. The idea of dividing frequency band is first used to design the piezo--electric transducer in body-wave acousto-optic devices. Two new transducer constructions are mentioned. Three AOTFs using TeO_2 crystal have been designed and manufactured for operation in visible region (0.4 ~ 0.7 μm), their bandwidths are larger than 65 MHz. With the present experiment conditions, the results of their characteristics are satisfied. Otherwise, the measurement principle of the optical thickness of thin films using the manufactured AOTF is studied, and experimentally demonstrated the possibility of this AOTF application.
Document Type学位论文
Recommended Citation
GB/T 7714
罗德卉. 宽带声光可调滤光器的设计及应用[D]. 中国科学院光电技术研究所. 中国科学院光电技术研究所,1992.
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