%0 Journal Article
%T Effects of Doping Concentration and Solvent on All-Optical Switching Characteristics of Azo-Dye-Doped Polymer Films<br>掺杂浓度与溶剂对偶氮聚合物薄膜全光开关
%A LIU Ru-jun
%A XU Tang
%A ZHANG Chun-ping
%A HAO Zhao-feng
%A <br>刘如军
%A 许棠
%A 张春平
%A 郝召锋
%J 光子学报
%D 2008
%I 
%X Ethyl Red doped polymer (PMMA) films and Ethyl Orange doped polymer (PVA) films are prepared by the repeat-spin-coating method,the all-optical switching characteristics of the azo-dye doped film samples are measured,and the effects of the doping concentrations and the solvents on all-optical switching characteristics of the samples are investigated.The experimental results demonstrate that with the increasing doping concentration and the polarity of solvents,the samples will show stronger all-optical switching effect and larger background signal of the switch,but the effect on the response speed of optical switch is trivial.In room temperature condition and with the control beam power of several milliwatts,the polymer films have the response time in millisecond magnitude and the depth of switch modulation above 40% by choosing the proper doping concentrations of the polymer films and the solvent with the strong polarity,and the maximal depth of switch modulation reaches 72%.
%K Azo-dye doped polymer
%K All-optical switch
%K Response speed
%K Modulation depth<br>偶氮聚合物
%K 全光开关
%K 开关速度
%K 调制深度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=A5AD90D88FAD340150DE62D5E3784B2A&yid=67289AFF6305E306&vid=42425781F0B1C26E&iid=0B39A22176CE99FB&sid=10828928EB89AD8E&eid=627456E7977439A4&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=12