偏振的可視化教學實驗設計

Polarization Visualization Experimental Design

10.6212/CPE.202407_25(1).0003

彭佳緯(Chia-Wei Peng)；邱思源(Szu-Yuan Chiu)；柯景元(Jing-Yuan Ko)；利見興(Jiann-Shing Lih)

偏振 ； 視覺化 ； 電磁波 ； 繩波 ； Polarization ； Visualization

物理教育學刊

25卷1期（2024 / 07 / 01）

25 - 36

繁體中文;英文

偏振是電磁波中的重要概念，它表示了電磁波的電場方向。為了理解偏振，學生需要在三維空間中考慮電場、磁場和傳播方向之間的關係。根據我們的教學經驗，由於電磁波是不可見的，所以學生常常很難想像，電磁波在空間中傳播的樣子。此外，對於不熟悉向量分解的學生來說，分析偏振光通過偏振片後，強度的變化也是困難的工作。有鑑於此，本文將設計一個實驗，讓學生能夠「視覺化」偏振，並且模擬偏振光穿過偏振片的實驗。

Polarization is an important concept in electromagnetic waves, which represents the direction of the electric field in electromagnetic waves. To understand polarization, students need to consider the relationship between electric fields, magnetic fields, and directions of propagation in three dimensional space. However, based on our teaching experience, since electromagnetic waves are invisible, students often find it challenging to imagine how electromagnetic waves propagate in space. Additionally, students who are not familiar with vector decomposition may struggle to analyze the change in intensity of polarized light after it passes through the polarizer. Given these reasons, this article aims to design an experiment that enables students to "visualize" polarization and simulates the experiment of polarized light passing through a polarizer.

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