Luminescence enhancement from Si-based materials by introducing a photonic crystal double-heterostructure slot waveguide microcavity

• Published in: Optoelectronics letters Vol. 7; no. 4; pp. 266 - 268
• Main Author: 王玥 吴远大 张家顺 安俊明 胡雄伟
• Format: Journal Article
• Language: English
• Published: Heidelberg Tianjin University of Technology 01.07.2011
• Subjects: Lasers; Optical Devices; Optics; Photonics; Physics; Physics and Astronomy; 光子晶体; 双异质结; 发光; 微腔; 有限差分时域; 槽波导; 硅基材料; 谐振模式; Luminescence Enhancement; Photonic Crystal Structure; Slot Waveguide; Photonic Crystal; Slot Width
• ISSN: 1673-1905; 1993-5013
• DOI: 10.1007/s11801-011-1023-x

We demonstrate a novel SOI-based photonic crystal（PC） double-heterostructure slot waveguide microcavity constructed by cascading three PC slot waveguides with different slot widths,and simulate the luminescence enhancement of sol-gel Er-doped SiO2 filled in the microcavity by finite-difference time-domain（FDTD） method.The calculated results indicate that a unique sharp resonant peak dominates in the spectrum at the expected telecommunication wavelength of 1.5509 mm,with very high normalized peak intensity of ~108.The electromagnetic field of the resonant mode exhibits the strongest in the microcavity,and decays rapidly to zero along both sides,which means that the resonant mode field is well confined in the microcavity.The simulation results fully verify the enhancement of luminescence by PC double-heterostructure slot waveguide microcavity theoretically,which is a promising way to realize the high-efficiency luminescence of Si-based materials.