光学精密工程2011，Vol.19Issue(10)：2342-2348,7.DOI:10.3788/OPE.20111910.2342
可激发等离子体表面波的离子交换单模条波导
Ion-exchange single-mode stripe waveguide for excitation of surface plasma wave
摘要
Abstract
An ion-exchange single-mode stripe waveguide was designed to excite the surface plasmawave.The experimental determination method of relative parameters,the two-dimensional diffusionand refractive index distribution of the stripe waveguide and the excitation of surface plasma wavewere investigated.Based on Ag+一Na+ion-exchange technology,the planar waveguide with fl gradedrefractive index was prepared on Germany B270 optical glass.By taking a complementary error func-tion to fit the refractive index distribution,the diffusion coefficient(Deff)and the refractive index in-crement(An)of the waveguide were obtained under certain process parameters.On this basis,thecondition of single-mode waveguide was calculated by using equivalent refractive index method and thecorresponding technological parameters were designed.Finally,the single-mode strip waveguide wasprepared in the 0.1% AgNO3～99.9% NaNO3 mixed molten salt based on the lithographic technology.The test result of mode field distribution shows that the waveguide prepared has a good single-modecharacteristic.When the waveguide is coated with 50 nm Au film,and tested by glycerine solutionwith different concentrations from 40% to 70%,it can excite surface plasma waves successfully.关键词
单模条波导/离子交换/等离子体表面波Key words
single-mode stripe waveguide/ion-exchange/surface plasma wave分类
信息技术与安全科学引用本文复制引用
刘瑾,陈抱雪,杨海马..可激发等离子体表面波的离子交换单模条波导[J].光学精密工程,2011,19(10):2342-2348,7.基金项目
国家自然科学基金资助项目(No.61077042 （）
60677032) （）
上海市重点实验室建设资助项目(No.08DZ2272800) （No.08DZ2272800）
上海市重点学科建设资助项目(No.S30502) （No.S30502）
上海市科委资助项目(10160501700) （10160501700）
上海工程技术大学校教学建设项目(k20110201 （）
p201102003 （）
k201102003) （）
