標題: | One-step fabrication of surface-relief diffusers by stress-induced undulations on elastomer |
作者: | Wang, Jui-Hao Chen, Chia-Fu Ho, Jeng-Rong Shih, Teng-Kai Chen, Chien-Chung Whang, Wha-Tzong Yang, Jung-Yen 材料科學與工程學系 Department of Materials Science and Engineering |
關鍵字: | Microscaled undulations;PDMS;Acid treatment |
公開日期: | 1-九月-2009 |
摘要: | In this study, we demonstrated that microscale surface undulations induced by acid treatment could serve as the surface relief on diffusers coated with a layer of PDMS polymer. Since the orientation of undulations was found to be always disordered, these undulations would scatter light uniformly. The periodicity of the undulations could be adjusted by the control of duration of the dipping of the elastomer into H(2)SO(4)/HNO(3) solutions and by the volume ratio of H(2)SO(4)/HNO(3) the solution, resulting in the modulation of diffusing ability of diffusers. The optical properties, transmittance, and light diffusivity, were characterised. This proposed approach offers potential for mass production of surface-relief diffusers. In addition, the proposed method allows the creation of undulations on arbitrary substrates. (C) 2008 Elsevier Ltd. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.optlastec.2008.12.005 http://hdl.handle.net/11536/6720 |
ISSN: | 0030-3992 |
DOI: | 10.1016/j.optlastec.2008.12.005 |
期刊: | OPTICS AND LASER TECHNOLOGY |
Volume: | 41 |
Issue: | 6 |
起始頁: | 804 |
結束頁: | 808 |
顯示於類別: | 期刊論文 |