Surface morphology of refractive-index waveguide gratings fabricated in polymer films-中国Betway体育网页登陆

摘要 Thecharacteristicmodificationsarereportedonthesurfaceofpolymericwaveguidefilmintheprocessofvolume-gratingfabrication.Thelightfromamode-locked76MHzfemtosecondlaserwithpulsedurationof200fsandwavelengthof800nmisfocusednormaltothesurfaceofthesample.Thesurfacemorphologymodificationsareascribedtoafactthatsurfaceswellingoccursduringtheprocess.Periodicmicro-structureisinscribedwithincreasingincidentpower.Thelaser-inducedswellingthresholdonthegrating,whichishigherthanthatoftwo-photoninitiatedphoto-polymerization(TPIP)(8mW),isverifiedtobeabout20mW.Itisfeasibletoenhancethesurfacesmoothnessofintegratedopticsdevicesforfurtherencapsulation.Thevariationofmodulationdepthisstudiedfordifferentvaluesofincidentpowerandscanspacing.Ablationaccompaniedwithsurfaceswellingappearswhenthepowerishigher.Byoptimizingthelasercarvingparameters,highlyefficientgratingdevicescanbefabricated.

1YANGGuowei;MAOYude.Dependence of surface morphology of CVD diamond films on deposition conditions.物理电子学,1995-01.
2金娃;毕卫红;付兴虎;付广伟.Periodical rocking long period gratings in PANDA fibers for high temperature and refractive index sensing.物理电子学,2017-05.
3Bei Zhu;Zhanghua Han.Enhanced Terahertz Fingerprint Detection beyond Refractive Index Sensing in a Periodic Silicon Waveguide Cavity.物理电子学,2018-02.
4All Cetin;Ercan Ucgun;M .Selami Kilickaya.Determining the Effective Refractive Index of AIGaAs-GaAs Slab Waveguide Based on Analytical and Finite Difference Method.物理,2012-09.
5WANG Yanlai;NIE Hongbo;GUO Shiju.Preparation of CulnSe2 films by ultrasonic electrodeposition-selenization and the improvement of their surface morphology.金属材料,2010-05.
6徐嶺茂;周晖;何延春;张凯锋;武生虎;熊玉卿.Temperature coefficient of the refractive index for PbTe film.光学工程,2017-04.
7叶红安 ;王熙 ;常存.Compact liquid—refractive index measuring equipment.光学工程,2003-05.
8王瑞坤;孙丽虹;刘鸿飞;王小平;杨秉川.Study　on　Morphology　of　Surface　of　Large　Area　YBCO　Thin　Films　on　Zr（Y）O2　Substrate.有色金属冶金,1996-03.
9梁晗;战可涛;侯志灵.Extraordinary Optical Confinement in a Silicon Slot Waveguide with Metallic Gratings.物理,2015-06.
10姜海富;巩春志;田修波;杨士勤;R. K. Y. FU;P. K. CHU.Uniformity of TiN Films Fabricated by Hollow Cathode Discharge.核技术及应用,2010-02.

Surface morphology of refractive-index waveguide gratings fabricated in polymer films

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