Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7907607 | Optical Materials | 2018 | 9 Pages |
Abstract
Hybrid inorganic/organic one dimensional photonic crystal based on alternating layers of Si/HMDSO is elaborated. The inorganic silicon is deposited by radiofrequency magnetron sputtering and the organic HMDSO is deposited by PECVD technique. As the Si refractive index is nâ¯=â¯3.4, and the refractive index of HMDSO layer depend on the deposition conditions, to get a photonic crystal with high and low refractive index presenting a good contrast, we have varied the radiofrequency power of PECVD process to obtain HMDSO layer with low refractive index (nâ¯=â¯1.45). Photonic band gap of this hybrid structure is obtained from the transmission and reflection spectra and appears after 9 alternative layers of Si/HMDSO. The introduction of defects in our photonic crystal leads to the emergence of localized modes within the photonic band gap. Our results are interpreted by using a theoretical model based on transfer matrix.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
R. Amri, S. Sahel, D. Gamra, M. Lejeune, M. Clin, K. Zellama, H. Bouchriha,