塑膠材質單狹縫繞射光強度圖形的干涉變化

Deformations of The Plastic Single-Slit's Diffraction Pattern

羅道正(Dau-Jeng Low)

《物理教育學刊》 11卷2期 (2010/12) Pp. 43-56

https://doi.org/10.6212/CPE.2010.1102.04

摘要

本文介紹在塑膠材質單狹縫繞射實驗之中可以觀察到的特殊干涉圖形，將實驗室觀察到的現象與Matlab程式模擬傅氏光學分析的結果予以比較討論，實驗設備包括PASCO電腦化狹縫實驗模組及自製的平移台和偵測器，其中自製的電動平移台（附光學編碼位移偵測）、和光強度偵測器以光資機電整合之教學目的設計製作，亦適合作為應用電子學的教具和專題實驗教材。

關鍵字

單狹縫 ； 雙狹縫 ； 繞射 ； 干涉 ； 光強度

並列摘要

The main purpose of this research is to find out what happens about some deformations of the plastic single-slit's diffraction pattern. Compare the student's experiment results with the theoretical solutions of Fourier optics derived by computer simulations (Matlab). Another purpose of this research is attempt to build compatible detectors of the PASCO 750 interface. The linear motion sensor and the light intensity sensor was successfully completed. The physics of these detector's are good topics of teaching application in our physics Labs.

並列關鍵字

Interference ； Intensity ； Single-Slit ； Diffraction ； double-Slits