Engineering of directional emission from photonic-crystal waveguides
暂无分享,去创建一个
We analyze, by the finite-difference time-domain numerical method, different ways to enhance the directional emission from photonic-crystal waveguides through the recently predicted beaming effect. We demonstrate that the substantial enhancement of the light emission can be achieved by adjusting the input wavelength, using a positive surface corrugation, increasing the refractive index of the surface layer, and inducing a near-surface mode.
[1] H. Lezec,et al. Extraordinary optical transmission through sub-wavelength hole arrays , 1998, Nature.
[2] Esteban Moreno,et al. Enhanced transmission and beaming of light via photonic crystal surface modes , 2004 .
[3] C. Soukoulis,et al. Highly directional emission from photonic crystal waveguides of subwavelength width. , 2004, Physical review letters.
[4] R A Linke,et al. Beaming Light from a Subwavelength Aperture , 2002, Science.