Real-time measurement for the electro-optic coefficient of a poled-polymer film in ATR configuration

Bo Yuan; Zhuangqi Cao; Qishun Shen; Yingli Chen; X. Dou; Hideo Tashiro

doi:10.1117/12.402602

9 October 2000 Real-time measurement for the electro-optic coefficient of a poled-polymer film in ATR configuration

Bo Yuan, Zhuangqi Cao, Qishun Shen, Yingli Chen, X. Dou, Hideo Tashiro

Proceedings Volume 4221, Optical Measurement and Nondestructive Testing: Techniques and Applications; (2000) https://doi.org/10.1117/12.402602
Event: Optics and Optoelectronic Inspection and Control: Techniques, Applications, and Instruments, 2000, Beijing, China

Abstract

A new method which bases on the attenuated total reflection (ATR) technique is developed to determine the electro-optic coefficient of a poled-polymer film. The proposed ATR arrangement consists of a coupling prism, and four film layers deposited directly onto the base of the prism in sequence. The four film layers are metal film (which serves as a top electrode), poled polymer film, buffer and base electrode, respectively. A convergent light beam covering a suitable angular range is incident onto the prism base to excite a guided wave mode and the reflected light beam is imaged by a CCD array. Then resonance angle of the guided wave mode can be determined from the position of the reflectance minimum. It is demonstrated that the applying electrical field will cause a minute change in the refractive index of a poled- polymer film, due to the Pockles effect, which will result in a shift of the resonance angle. In order to make the measurement more successful, computer image processing method and optical image spatial filter technology are used in our measurement.

Citation Download Citation

Bo Yuan, Zhuangqi Cao, Qishun Shen, Yingli Chen, X. Dou, and Hideo Tashiro "Real-time measurement for the electro-optic coefficient of a poled-polymer film in ATR configuration", Proc. SPIE 4221, Optical Measurement and Nondestructive Testing: Techniques and Applications, (9 October 2000); https://doi.org/10.1117/12.402602

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available