光电子技术, 2016, 36 (3): 191, 网络出版: 2016-12-07  

槽型光子晶体波导慢光特性研究

Research on Slow Light Properties of Slotted Photonic Crystal
作者单位
江苏大学 计算机科学与通信工程学院, 江苏 镇江 212013
摘要
提出了一种新颖的结构--槽型光子晶体波导结构。槽型波导将光波禁锢在低折射率槽型区域内, 不仅增加了光与物质相互作用的时间, 同时也增强了光与物质相互作用的强度,从而增强了低折射率区域的慢光效应。利用平面波展开法进行仿真模拟, 结果表明: 通过调节槽型缺陷的宽度, 槽型波导中波导模式相互作用强度增强, 槽缺陷中的电场强度约为高折射率区域的12倍, 具有很强的光控能力, 获得群速度最小值1.55×10-3c。这一结果将为基于光子晶体的光学器件的设计和应用提供有效的理论支持。
Abstract
The slotted photonic crystal was proposed as a new structure. The slotted waveguide has a good ability to control light, and by means of confining light wave in the low-refractive slotted filed, it could not only increase the interaction time between light and the matter, but also enhance the interaction strength, leading to the enhancement of the slow-light effect in the low-refractive area. Slow light properties were investigated by using the Plane Wave Expansion Method (PWM), and the simulation results show that: By adjusting the width of slotted defect , the best slow light effect could be acquired when electric field strength in the slot is 12 times higher than that of high-refractive area. The lowest group velocity is 1.55×10-3 c. The results will provide effective theoretical support to the design and application of optical phenomenon based on photonic crystal.
参考文献

[1] Yablonovitch E. Inhibited spontaneous emission in solid-state physics and electronics[J]. Physical Review Letters, 1987,58(20):2059.

[2] John S. Strong localization of photons in certain disordered dielectric superlattices[J]. Physical Review Letters, 1987,58(23):2486.

[3] Zhu N, Wang Y, Ren Q, et al. Slow light in nonlinear photonic crystal coupled-cavity waveguides[J]. Optics & Laser Technology, 2014,57:154-158.

[4] Zhu N, Ren Q, Wang Y, et al. Slow light in photonic crystals waveguide constructed with symmetrically perturbed structure[J]. Optik-International Journal for Light and Electron Optics, 2014,125(11):2616-2619.

[5] Bagci F, Akaoglu B. A systematic analysis of hole size, hole-type and rows shifting on slow light characteristics of photonic crystal waveguides with ring-shaped holes[J]. Optik-International Journal for Light and Electron Optics, 2014,125(11):2702-2707.

[6] Zhao Y, Zhang Y N, Wu D, et al. Wideband slow light with large group index and low dispersion in slotted photonic crystal waveguide[J]. Journal of Lightwave Technology, 2012,30(17):2812-2817.

[7] Zhu N, Xu L, Zhou L. Research on slow light for slotted photonic crystal waveguide with mixed dielectric constant[J]. Optik-International Journal for Light and Electron Optics, 2013,124(17):2817-2820.

[8] Wan Y, Fu K, Li C, et al. Improving slow light effect in photonic crystal line defect waveguide by using eye-shaped scatterers[J]. Optics Communications, 2013,286:192-196.

[9] üstün K, Kurt H. Ultra slow light achievement in photonic crystals by merging coupled cavities with waveguides[J]. Optics Express, 2010,18(20):21155-21161.

[10] Almeida V R, Xu Q, Barrios C A, et al. Guiding and confining light in void nanostructure[J]. Optics Letters, 2004,29(11):1209-1211.

[11] Di Falco A, O’Faolain L, Krauss T F. Photonic crystal slotted slab waveguides[J]. Photonics and Nanostructures Fundamentals and Applications, 2008,6(1):38-41.

[12] Falco D. Slotted photonic crystal waveguides and cavities for slow light and sensing applications[C].2008 5th IEEE International Conference on Group IV Photonics. Sorrento, Italy. 2008:228-230.

[13] Zhao Y, Zhang Y N, Hu H F. Dispersion engineering of slow light in ellipse-shaped-hole slotted photonic crystal waveguide[J]. Journal of Lightwave Technology, 2014,32(11):2144-2151.

[14] Ryckman J D, Weiss S M. Localized field enhancements in guided and defect modes of a periodic slot waveguide[J]. Photonics Journal, IEEE, 2011,3(6):986-995.

[15] Abedi K, Mirjalili S M. Slow light performance enhancement of Bragg slot photonic crystal waveguide with particle swarm optimization algorithm[J]. Optics Communications, 2015,339:7-13.

[16] Almeida V R, Xu Q, Barrios C A, et al. Guiding and confining light in void nanostructure[J]. Optics Letters, 2004,29(11):1209-1211.

[17] Zhang X, Tian H, Yang D, et al. The properties and structure optimization of slot photonic crystal waveguide[J]. 2010 2nd IEEE International Conference on Network Infrastructure and Digital Content, 2010:1014-1017.

李媛媛, 朱娜, 陈诚. 槽型光子晶体波导慢光特性研究[J]. 光电子技术, 2016, 36(3): 191. LI Yuanyuan, ZHU Na, CHEN Cheng. Research on Slow Light Properties of Slotted Photonic Crystal[J]. Optoelectronic Technology, 2016, 36(3): 191.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!