CAJ | 학술논문

分析了不同空气孔形状的光子晶体受位置和半径微扰对于透射的影响,包括圆形,方形与椭圆形.仿真结果发现及形状相同微扰程度下,通过比较透射平坦带宽部分的分析得到透射率对位置微扰更加敏感.慢光区域正方形空气孔对于位置微扰表现较好,圆形空气孔对于半径微扰更稳健.由于不同形状的空气孔光子晶体波导结构有各自的优势,因此研究微扰对透射率的影响对于光子晶体波导实验和制作过程有重要的理论指导意义.
분석료불동공기공형상적광자정체수위치화반경미우대우투사적영향,포괄원형,방형여타원형.방진결과발현급형상상동미우정도하,통과비교투사평탄대관부분적분석득도투사솔대위치미우경가민감.만광구역정방형공기공대우위치미우표현교호,원형공기공대우반경미우경은건.유우불동형상적공기공광자정체파도결구유각자적우세,인차연구미우대투사솔적영향대우광자정체파도실험화제작과정유중요적이론지도의의.
The impact of positional and radial disorders on the transmission spectrum of photonic crystal waveguides with different shapes of air-holes, including circular, square and elliptic were numerically investigated. It was found that the disorder affects the anti-crossing point greatest.The flat transmission spectrum becomes narrower as disorder increasing. The transmission property performs more sensitive on the air-holes positions than radii. The square air-holes are more robust against the positional disorder. The circular air-holes are more robust alainst the radial disorder. These results provide important theoretical instructions on the imperfection during the manufacture possess in the PCWs experiment.