1. Graduate School of Science and Technology Shizuoka University 3-5-1 Johoku, Naka-ku Hamamatsu 432-8011 Japan
2. Research Institute of Electronics Shizuoka University 3-5-1 Johoku, Naka-ku Hamamatsu 432-8011 Japan
3. Nanomaterials Research Institute National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba 305-8565 Japan
4. ANSeeN Inc. 3-5-1 Johoku, Naka-ku Hamamatsu 432-8011 Japan