Atomic layer deposited titanium dioxide and its application in resonant waveguide grating

被引:50
作者
Alasaarela, T. [1 ]
Saastamoinen, T. [2 ]
Hiltunen, J. [3 ,4 ]
Saynatjoki, A. [1 ]
Tervonen, A. [1 ]
Stenberg, P. [2 ]
Kuittinen, M. [2 ]
Honkanen, S. [1 ]
机构
[1] Aalto Univ Sch Sci & Technol, Dept Micro & Nanosci, FI-00076 Aalto, Finland
[2] Univ Eastern Finland, Dept Phys, FIN-80101 Joensuu, Finland
[3] VTT Tech Res Ctr Finland, FIN-90571 Oulu, Finland
[4] Univ Oulu, Microelect & Mat Phys Labs, FIN-90014 Oulu, Finland
基金
芬兰科学院;
关键词
TIO2; THIN-FILMS; GROWTH;
D O I
10.1364/AO.49.004321
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We demonstrate good optical quality TiO2 thin films grown by atomic layer deposition at 120 degrees C. The optical properties were studied using spectroscopic ellipsometry and prism coupling methods. The refractive index was 2.27, and the slab waveguide propagation loss was less than 1 dB/cm at 1.53 mu m. A high quality resonant waveguide grating was fabricated using a thin TiO2 layer on top of a SiO2 grating. (C) 2010 Optical Society of America
引用
收藏
页码:4321 / 4325
页数:5
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