@article{0137d9c101ee4a5da5f17195e65177d5,
title = "Fabrication of a 33-layer optical reflection filter with stepwise graded refractive index profiles",
abstract = "A novel optical multilayer filter characterized by symmetrically stepwise graded refractive index profiles and high optical performance was designed. This 33-layer TiO2-SiO2 filter was fabricated by helicon plasma sputtering. The prepared filter exhibited a sharp cutoff reflection band around the central wavelength of 1340 nm and wide pass regions with high transmittance. These results correspond well with calculated estimations. Symmetrically stepwise graded refractive index profiles were demonstrated to effectively contribute to suppression of the sidelobes and to be potentially applicable in the design of other filters.",
author = "Xinrong Wang and Hiroshi Masumoto and Yoshihiro Someno and Lidong Chen and Toshio Hirai",
note = "Funding Information: Part of this work was supported by a Grant-in-Aid for Scientific Research (A) (No. 07405029) and a Grant-in-Aid for Scientific Research on Priority Areas (No. 08243102) from The Ministry of Education, Sci- ence, Sports and Culture, Government of Japan. Part of this work was supported by a Grant-in Aid in Promotion of Research of Advanced Materials (No. H1001p) from the Laboratory for Developmental Research of Advanced Materials, the Institute for Materials Research, Tohoku University. We wish to thank Mr. E. Aoyagi, Mr. U. Hayasaka, and Mr. S. Ito at the Institute for Materials Research, Tohoku University, for the TEM observations.",
year = "2000",
month = feb,
doi = "10.1557/JMR.2000.0044",
language = "English",
volume = "15",
pages = "274--277",
journal = "Journal of Materials Research",
issn = "0884-2914",
publisher = "Materials Research Society",
number = "2",
}