Spectroscopy of photonic band gaps in mesoporous one-dimensional photonic crystals based on aluminum oxideV.S. Gorelik, Yu.P. Voinov, V.V. Shchavlev, Dongxue Bi, Guo Liang Shang and Guang Tao FeiEPJ Web Conf., 132 (2017) 03054DOI: https://doi.org/10.1051/epjconf/201713203054