Optimized inductively coupled plasma etching for poly(methyl-methacrylate-glycidly-methacrylate) optical waveguide |
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| Authors: | Xiaoqiang Sun Xiaodong LiChangming Chen Kun ZhangJie Meng Xibin WangTianfu Yang Daming ZhangFei Wang Zhiyuan Xie |
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| Affiliation: | a Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renming Street, Changchun, Jilin 130022, Chinab State Key Laboratory on Integrated Optoelectronics, Jilin University, Changchun, Jilin 130012, China |
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| Abstract: | Optical loss is a crucial quality for the application of polymer waveguide devices. The optimized oxygen inductively coupled plasma etching conditions, including antenna power, bias power, chamber pressure, O2 flow rate and etching time for the fabrication of smooth vertical poly(methyl-methacrylate-glycidly-methacrylate) channel waveguide were systematically investigated. Atomic force microscopy and scanning electron microscopy were used to characterize the etch rate, surface roughness and vertical profiles. The increment of etch rate with the antenna power, bias power and O2 flow rate was observed. Bias power and chamber pressure were found to be the main factor affecting the interface roughness. The vertical profiles were proved to be closely related to antenna power, bias power and O2 flow rate. Surface roughness increment was observed when the etching time increased. |
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| Keywords: | Inductively coupled plasma Etching Polymers Optical waveguides Scanning electron microscopy Atomic force microscopy |
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