摘要
光学薄膜在倾斜入射时可等效为一线偏振器和一位相延迟器,这一特性可以用琼斯算法进行描述。利用薄膜的这一特性可以消除光学系统中不想要的偏振效应以保持光的偏振状态,也可以用来制作薄膜位相延迟片。首先介绍了薄膜偏振特性分析的琼斯矩阵理论,并结合90°束旋转环行非稳腔中倒向波的抑制,对薄膜位相延迟器的应用进行了举例说明,最后利用TFCalc3.5薄膜设计软件优化设计出了45°入射时,在1315nm处具有90°位相延迟的全介质薄膜位相延迟器。
Optical thin film at non-normal incidence is equivalent to a combination of a dichroic linear polarization and a retarder, and it can be described in Jones calculus. This feature not only can be used to cancel unwanted polarization effects in optical system, but also can be used to fabricate phase retarder. Jones calculus for the polarization characteristics analysis of optical thin film is given, and as an example, an optical thin film with 90 degree phase retard used in an unstable ring resonator with 90 degree beam rotation is analyzed. At last, a 90 degree optical thin film phase retarder in 1315nm at 45 degree incidence is designed by use of TFCalc3.5 thim film design software.
出处
《光学仪器》
2004年第2期60-63,共4页
Optical Instruments
