・"Ultrastable optical clock with neutral atoms in an engineered light shift trap", Seminars at LENS, European Laboratory for Non-linear Spectroscopy, Florence, Italy, 08-03-2004

・"Optical lattice clock," Hidetoshi Katori, Seminar at National Physical Laboratory, Teddington, England, (Oct. 14, 2003).

・"Narrow-line cooling of atoms toward quantum degeneracy," Hidetoshi Katori, Sonderforschungsbereich, University of Hannover and PTB, Physikalisch- Technische Bundesanstalt, Braunschweig, Germany, (Sept. 18, 2001).