Polarization-conversion guided mode (PCGM) technique for exploring thin anisotropic surface layers | |
Fuzi Yang ; Lizhen Ruan ; Sambles, J.R. | |
2010-10-12 ; 2010-10-12 | |
关键词 | Practical/ light polarisation optical waveguides/ polarization-conversion guided mode technique thin anisotropic surface layers optical anisotropy optical geometry consists index-fluid matched prism-coupler air-gap waveguide non-destructive characterization polarization conversion signal size 10 nm/ A4280L Optical waveguides and couplers A4225J Optical polarization B4130 Optical waveguides/ size 1.0E-08 m |
中文摘要 | A polarization-conversion guided mode (PCGM) technique has been developed to quantify optical anisotropy as low as 10~5 for a surface layer only 10 nm thick. The optical geometry consists of an index-fluid matched prism-coupler and an air-gap waveguide comprising the thin sample on a glass plate as the incident surface with a gold reflector forming the other surface of the guide. This allows non-destructive characterization of the optical anisotropy of surface layers. The polarization conversion signal is extraordinarily sensitive. Thus the influence of the polarization purity of the incoming beam, very small twists and/or tilts between the normal to the prism bottom surface and the sample plane, have all been analyzed in detail to allow extraction of the sought for information about the thin layer. Rubbed polyimide thin films and incline-evaporated SiOx layers, both used for liquid crystal alignment, have been examined by this PCGM technique to demonstrate its power. |
语种 | 英语 |
出版者 | Optical Society of America ; USA |
内容类型 | 期刊论文 |
源URL | [http://hdl.handle.net/123456789/80867] ![]() |
专题 | 清华大学 |
推荐引用方式 GB/T 7714 | Fuzi Yang,Lizhen Ruan,Sambles, J.R.. Polarization-conversion guided mode (PCGM) technique for exploring thin anisotropic surface layers[J],2010, 2010. |
APA | Fuzi Yang,Lizhen Ruan,&Sambles, J.R..(2010).Polarization-conversion guided mode (PCGM) technique for exploring thin anisotropic surface layers.. |
MLA | Fuzi Yang,et al."Polarization-conversion guided mode (PCGM) technique for exploring thin anisotropic surface layers".(2010). |
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