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Citation: XIAO Ping-Ping. Real-Time Investigation on Refractive-Index and Thickness of Polymer Films during Photobleaching Process[J]. Acta Physico-Chimica Sinica, ;2008, 24(07): 1321-1325. doi: 10.3866/PKU.WHXB20080735 shu

Real-Time Investigation on Refractive-Index and Thickness of Polymer Films during Photobleaching Process

XIAO Ping-Ping

1.
School of Physics Science and Engineering Technology, Yichun University, Yichun 336000, Jiangxi Province, P. R. China

Received Date: 14 January 2008
Available Online: 9 April 2008

A novel real-time measurement method to determine the refractive index and the thickness of a polymer film during photobleaching process was proposed based on the non-scanning attenuated total reflection (ATR) technique. Several dark lines corresponding to the guided-wave modes were demonstrated on the computer screen by a CCD camera. According to the shift of the dark lines, the changing values of refractive index and thickness of the polymer film can be simultaneously determined in time during photobleaching process. And we found that both chemical and physical change processes existed in the changes of refractive index and thickness of the polymer.
- Attenuated total reflection; Polymer waveguide; Photobleaching
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