激光技术
激光技術
격광기술
LASER TECHNOLOGY
2015年
3期
312-315
,共4页
光学器件%光子晶体%微纳光纤%光子带隙
光學器件%光子晶體%微納光纖%光子帶隙
광학기건%광자정체%미납광섬%광자대극
optical devices%photonic crystal%micro-fiber%photonic band-gap
为了形成胶体晶体－微纳光纤结构，采用提拉生长法，将单分散的聚苯乙烯微球在微纳光纤表面自组装生长成胶体晶体，并用扫描电子显微镜和光谱仪对胶体晶体的显微形貌和透射光谱特性进行了表征。结果表明，聚苯乙烯微球有序堆积，自组装成胶体晶体，其结构为面心立方密排结构，表面为面心立方结构的[111]面。胶体晶体－微纳光纤的透射光谱在1400．8nm处有透射峰，对应于面心立方结构在[111]方向上的光子带隙。这种光子晶体微纳光纤在光纤传感器及滤波器方面有广阔的应用前景。
為瞭形成膠體晶體－微納光纖結構，採用提拉生長法，將單分散的聚苯乙烯微毬在微納光纖錶麵自組裝生長成膠體晶體，併用掃描電子顯微鏡和光譜儀對膠體晶體的顯微形貌和透射光譜特性進行瞭錶徵。結果錶明，聚苯乙烯微毬有序堆積，自組裝成膠體晶體，其結構為麵心立方密排結構，錶麵為麵心立方結構的[111]麵。膠體晶體－微納光纖的透射光譜在1400．8nm處有透射峰，對應于麵心立方結構在[111]方嚮上的光子帶隙。這種光子晶體微納光纖在光纖傳感器及濾波器方麵有廣闊的應用前景。
위료형성효체정체－미납광섬결구，채용제랍생장법，장단분산적취분을희미구재미납광섬표면자조장생장성효체정체，병용소묘전자현미경화광보의대효체정체적현미형모화투사광보특성진행료표정。결과표명，취분을희미구유서퇴적，자조장성효체정체，기결구위면심립방밀배결구，표면위면심립방결구적[111]면。효체정체－미납광섬적투사광보재1400．8nm처유투사봉，대응우면심립방결구재[111]방향상적광자대극。저충광자정체미납광섬재광섬전감기급려파기방면유엄활적응용전경。
In order to fabricate colloidal crystal micro-fiber structure, monodisperse polystyrene microspheres were grown into self-assembled colloidal crystals on the surface of micro-nano fiber by Czochralski method .Microstructure of colloidal crystals and properties of transmission spectra were characterized by scanning electron microscopy and spectroscopy .The results show that polystyrene microspheres are accumulated orderly and are assembled to colloidal crystals by themselves .The colloidal crystal has face-centered cubic structure and the surface of micro-fiber has [ 111 ] facet of face-centered cubic structure .The transmission peak of micro-structured fiber is about 1400.8nm, corresponding to the photonic band gap in the [ 111 ] direction of face-centered cubic structure .This kind of micro-fiber with three-dimensional photonic crystal structure is very useful in the applications of micro -fiber sensors or filters .
