- Optics Express, Vol. 14, Issue 12, pp. 4958-4968 (June 2006)
- Kamugisha Kazaura, Kazunori Omae, Toshiji Suzuki, Mitsuji Matsumoto, Edward Mutafungwa, Timo O. Korhonen, Tadaaki Murakami, Koichi Takahashi, Hideki Matsumoto, Kazuhiko Wakamori, Yoshinori Arimoto