Dipartimento di Elettrotecnica ed Elettronica (DEE), Politecnico di Bari, Bari, Italy.
Opt Lett. 2011 Mar 15;36(6):903-5. doi: 10.1364/OL.36.000903.
We report on the formation of plasmonic bandgaps in two-dimensional periodic arrangements of gold patches. Orthogonal arrays of subwavelength slits with different periodicities have been studied by means of a three-dimensional finite-difference time-domain (FDTD) code, changing incident polarization and geometrical parameters. Spectral response of gold patches having different a form factor and surrounded by different media have been also investigated and compared in order to give a full description of bandgap shifts paving the way for the design of polarization-sensitive devices.
我们报告了在二维周期性金片排列中形成等离子体带隙的情况。通过三维有限差分时域（FDTD）代码，我们研究了具有不同周期性的亚波长狭缝的正交阵列，改变了入射偏振和几何参数。我们还研究和比较了具有不同形状因子的金片和周围不同介质的光谱响应，以充分描述带隙移动，为设计偏振敏感器件铺平道路。
