Abstract

The use of an intermediate barrier layer to vary the penetration depth in an ATR experiment is investigated. Both theoretical and experimental results suggest that this method may be useful in probing concentration profiles away from the interface, particularly in the case of thin films, where variable-angle methods have limitations. Application of this technique in the study of poly(methylmethacrylate)/poly(dimethylsiloxane) (PMMA/PDMS) graft copolymers deposited onto a copper oxide surface indicates a preferential presence of the siloxane component at the oxide interface, a concentration which tends to decrease with increasing distance into the bulk of the sample film.

Optical dispersion of radiation-grafted fluoro-polymer

Fouad El-Diasty and N. M. El-Sawy
Appl. Opt. 47(11) 1790-1796 (2008)

Fabrication and optical characterization of microstructures in poly(methylmethacrylate) and poly(dimethylsiloxane) using femtosecond pulses for photonic and microfluidic applications

Deepak L. N. Kallepalli, Narayana Rao Desai, and Venugopal Rao Soma
Appl. Opt. 49(13) 2475-2489 (2010)

Diffusion of Al into Au thin films studied by the ATR method

B. Loisel and E. T. Arakawa
Appl. Opt. 19(12) 1959-1962 (1980)

Control of liquid crystal pretilt angles by using organic/inorganic hybrid interpenetrating networks

Dowon Ahn, Yong-Cheol Jeong, Seungwoo Lee, Jihye Lee, Yongjoon Heo, and Jung-Ki Park
Opt. Express 17(19) 16603-16612 (2009)

Circular dichroism, surface-enhanced Raman scattering, and spectroscopic ellipsometry studies of chiral polyfluorene-phenylene films

Geon Joon Lee, Eun Ha Choi, Won Kyu Ham, Chang Kwon Hwangbo, Min Ju Cho, and Dong Hoon Choi
Opt. Mater. Express 6(3) 767-781 (2016)