中山大学学报(自然科学版)
中山大學學報(自然科學版)
중산대학학보(자연과학판)
ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS SUNYATSENI
2014年
4期
69-73
,共5页
光子晶体%激光全息%实时显示%微结构%数值仿真
光子晶體%激光全息%實時顯示%微結構%數值倣真
광자정체%격광전식%실시현시%미결구%수치방진
photonic crystals%laser holography%real-time display%microstructures%numerical simula-tions
激光全息是制作光子晶体微结构的重要方法,为便于调节参数以提高实验成功率,提出利用CMOS传感器代替传统的记录材料全息干板,将全息干涉形成的微结构实时输入计算机处理。根据多光束干涉原理探讨了实现二维微结构的光束配置和设计原则,结合计算机数值仿真讨论了光束偏振对微结构“原子”形状的影响。进一步设计实验进行验证,结合实时显示技术方便、灵活调节各光束参数,获得了三角晶格和正方晶格两类典型的微结构。实验结果表明,计算机的实时显示技术有助于提高微结构的设计和制作效率。
激光全息是製作光子晶體微結構的重要方法,為便于調節參數以提高實驗成功率,提齣利用CMOS傳感器代替傳統的記錄材料全息榦闆,將全息榦涉形成的微結構實時輸入計算機處理。根據多光束榦涉原理探討瞭實現二維微結構的光束配置和設計原則,結閤計算機數值倣真討論瞭光束偏振對微結構“原子”形狀的影響。進一步設計實驗進行驗證,結閤實時顯示技術方便、靈活調節各光束參數,穫得瞭三角晶格和正方晶格兩類典型的微結構。實驗結果錶明,計算機的實時顯示技術有助于提高微結構的設計和製作效率。
격광전식시제작광자정체미결구적중요방법,위편우조절삼수이제고실험성공솔,제출이용CMOS전감기대체전통적기록재료전식간판,장전식간섭형성적미결구실시수입계산궤처리。근거다광속간섭원리탐토료실현이유미결구적광속배치화설계원칙,결합계산궤수치방진토론료광속편진대미결구“원자”형상적영향。진일보설계실험진행험증,결합실시현시기술방편、령활조절각광속삼수,획득료삼각정격화정방정격량류전형적미결구。실험결과표명,계산궤적실시현시기술유조우제고미결구적설계화제작효솔。
Laser holography is an important method for fabricating photonic crystal microstructures .In order to facilitate adjusting beam parameters to improve the success rate of experiment , it is proposed to transfer the formed microstructure to a computer for real-time display and processing by using a CMOS sensor .According to the principle of multi-beam interference , the beam configurations and design princi-ples of the realization of 2D microstructures are explored .Combining with numerical simulations , the in-fluence of the beam polarizations on the shapes of the formed microstructure “atom” is also discussed . Further experiments validate the designs .With the help of the convenient real-time display and flexible adjusting of the beam parameters , two kinds of microstructures , i.e., the triangular and square lattices , are obtained .Experimental results show that the real-time computer display technology is helpful to im-prove the efficiency of design and fabrication of microstructures .