1. Atsugi Research Center, Association of Super-advanced Electronics Technologies (ASET), c/o NTT Atsugi Research and Development Center, 3-1 Morinosato-Wakamiya, Atsugi 243-0198, Japan
2. William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, MSIN: K1-83, P.O. Box 999, 902 Battelle Boulevard, Richland, Washington 99352
3. Joint Research Center for Atom Technology (JRCAT), Angstrom Technology Partnership, c/o National Institute for Advanced Interdisciplinary Research, 1-1-4 Higashi, Tsukuba 305-0046, Japan