温度对超导光子晶体光子能带的影响  

The Influence of Temperature on the Band Structures in Two-dimensional Superconducting Photonic Crystals

作　　者：张翠玲[1] 郑瑞伦[2] 刘启能[1] 代洪霞[1] 

机构地区：[1]重庆工商大学计算机科学与信息工程学院,重庆400067 [2]西南大学物理学与电子工程学院,重庆400715

出　　处：《光子学报》2010年第11期1943-1946,共4页Acta Photonica Sinica

基　　金：重庆市教育委员会科学技术研究项目(KJ080720;KJ090716;KJ090716);重庆工商大学青年科学基金(0852013)资助

摘　　要：建立了二维超导光子晶体的物理模型,在超导二流体模型并考虑原子作非简谐振动情况下,用平面波展开法求出超导光子晶体的光子能带满足的方程.以YBaCuO超导光子晶体为例,探讨温度对它的光子能带结构的影响.结果表明:二维超导光子晶体在低温时具有较宽的禁带,且禁带宽度随温度的升高而变小.The physical model of two-dimensional suerconducting photonic crystal is established.Taking atomic non-harmonic oscillation into account with the help of two-fluid model,the equation of photonic band structure is obtained using the method of plane wave expansion.Taking a superconducting photonic crystal YBaCuO as example,the influences of temperature on the photonic band structure are analyzed.The calculations show that the two-dimensional photonic crystals have the wider band gaps at the lower temperature,which narrows with the increases of temperature.

关 键 词：超导光子晶体 温度 能带 二流体模型 非简谐振动 

分 类 号：O734[理学—晶体学]