Photonic-crystal Lens Coupler Using Negative Refraction
A novel photonic crystal lens working in the negative refraction frequency region that can focus a beam of light into a wavelength-sized spot is proposed. The device is formed by drilling air holes of triangular lattice in a portion of a dieffectric slab, and the whole structure is designed appropriately such that it can be easily fabricated using todays technology. The finite-difference time-domain simulations confirm that the focusing effect is mainly due to the negative refraction in the photonic crystal region, and the focused light can be efficiently coupled into a dieffectric waveguide.
Pi-Gang Luan Kao-Der Chang
Wave Engineering Laboratory, Department of Optics and Photonics Central University, Chungli 320, Taiwan, China
国际会议
Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)
北京
英文
1748-1752
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）