1. Transparent sintered corundum with high hardness and strength;Krell;J. Am. Ceram. Soc.,2003
2. Transparent alumina: a light scattering model;Apetz;J. Am. Ceram. Soc.,2003
3. Yamamoto, H., Mitsuoko, T. and Iio, S., Translucent polycrystalline ceramic and method for making same. Europe Patent Application EP 1 053 983 A2, IPK7 C04B35/115, 22.11, 2000.
4. Objective lens used in multi-wavelength, multi-layer and multi-level optical storage;Mao,2002
5. CVD diamond optical components, multispectral properties, and performance at elevated temperatures;Mollart,2001