摘要

在這篇論文當中，我們主要是針對磁流體薄膜在外加磁場的時的偏振光學效應做研究。我們觀察磁流體經過外加平行磁場時的光學雙折射及二色性的效應。根據我們的實驗結果，我們發現磁雙折射及二色性的效應是存在的。除此之外，我們也發現磁雙折射及二色性效應的產生是和外加磁場強度有關係的。因此，我們將針對外加直流或交流磁場時，改變磁場強度來做一系列的研究與討論。

Abstract

In this paper, the optical properties of magnetic fluid thin films are studied. We present the experimental observation of optical linear birefringence and dichroism in magnetic fluid thin film induced by crossed magnetic field perpendicular to the direction of light propagation. According to our results, we ascertain that both the magnetic birefringence and dichroism are existed. Besides, we also find that the relations between magnetic field and magneto-optical effects changed with the applied magnetic field intensity.

目錄

第1章導論--------------------------------------------1
第2章原理介紹----------------------------------------5
2-1 磁流體的磁光效應--------------------------5
2-2 產生磁光效應的原因------------------------6
(1) 磁流體的磁致雙折射效應---------------6
(2) 偏振光的透射強度與磁致二色性---------14
第3章實驗方法---------------------------------------15
3-1 實驗樣品製備-----------------------------15
3-2 實驗系統架設-----------------------------19
3-3 實驗方法說明-----------------------------22
第4章實驗結果---------------------------------------25
4-1 Cotton-Mouton Effect---------------------25
4-2 改變各項變因對照-------------------------30
4-3 討論與展望-------------------------------36
參考文獻--------------------------------------------38
附錄 實驗儀器及元件介紹----------------------------42

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